Used Aeg Thyristor Power Controller for sale (68,775)

Condition: used, Year of construction: 2016, Lifting capacity: 150 kg Please contact Gebrauchtgeräte Center for more information Bsdpfozt U Umox Acnjll

Condition: new, Year of construction: 2026, We have high-quality load banks from our series production for sale, with the following technical specifications: Condition: NEW Areas of application: - Load testing of emergency generators and uninterruptible power supply (UPS) systems - Grid stabilization through power consumption - Engine test benches Technical features: - Load type: Ohmic resistance - Voltage: 400V, also available up to 800V - Frequency: 50/60 Hz - Power factor: 1 - Power: - 250 kW - 500 kW - 800 kW - 1000 kW - 1500 kW - 2000 kW - Load levels can be set via any key combination - Test report printout - Test automation, automatic start of load levels Operation and control: - Directly via the keypad on the load bank - Via remote box (touch panel) - Via potential-free contacts - Optionally available with Modbus for integration into test automation Further features: - Lockable flaps/doors to prevent dust accumulation during storage - Compact design - Lightweight Bledpefm T Euofx Acnjl - Portable - Robust construction with container frame - Forklift slots and crane lifting device Includes electrical wiring diagrams Includes manual Includes software Delivery and commissioning possible for an additional charge.

Condition: ready for operation (used), AEG Double Grinding and Polishing Machine – Model DP 300/2200 -Operating voltage: 380 V -Motor power: 2.2 kW -Max. disc diameter: Ø 300 mm Bsdpeztaw Hefx Acnjll -Max. disc width: 50 mm -Polishing spindle speed: 1,400 rpm Dimensions: L x W x H 1.2 x 0.4 x 0.9 meters / Weight 180 kg Errors and omissions excepted.

Condition: ready for operation (used), functionality: fully functional, Year of construction: 2016, operating hours: 27,875 h, machine/vehicle number: 150204, laser type: CO₂ laser, laser wavelength: 10 nm, No minimum price – guaranteed sale to the highest bidder! Blodpfxjzncm He Acnsl TECHNICAL DETAILS Laser type: CO₂ laser Average power: 200–5,000 W Peak power: up to 6 kW Wavelength: 10.6 µm Beam quality factor M²: < 2.4 (typically 2.1–2.3) Beam divergence: 1.5 mrad (half-angle) Beam diameter at the output: 15 mm (1/e) Beam diameter at the output: 21 mm (full beam) Pulse repetition rate: 0–2 kHz Pulse width: 250 µs Pulse resolution: 70 µs (?) Alignment stability: ± 150 µrad (?) Wavelength: 635 nm Output power: < 1 mW MACHINE DETAILS Ambient temperature: 10–40 °C Relative humidity: < 95% (non-condensing) Connected power: 37 kW Voltage: 400–460 V AC Voltage tolerance: ± 10 % Power connection: 3-phase Required cooling capacity: 45 kW Flow rate: 133 l/min Inlet temperature: 18–20 °C Maximum inlet pressure: 6 bar Nominal inlet pressure: 3 bar Differential pressure: 1.5 bar Cooling medium: Distilled water with 35 % Dowfrost HD Filter fineness: 100 µm Helium purity: 99.996 % Helium proportion: 67.7 % Helium consumption: 13.4–46.8 SLPH Carbon monoxide purity: 99.995 % Carbon monoxide proportion: 4.1 % Carbon monoxide consumption: 0.9–3.0 SLPH Nitrogen purity: 99.996 % Nitrogen proportion: 28.2 % Nitrogen consumption: 5.8–20.2 SLPH Total gas consumption: 20–70 SLPH Maximum proportion of water vapor, hydrocarbons, and oxygen: < 10 ppm Compressed air: dry Compressed air dew point: < 2 °C Operating hours (according to meter): 27,875 h

Condition: excellent (used), I am offering for sale an Agilent Technologies Systems Controller, model 86030-30011. This is an industrial computer designed to work with Agilent's measuring and laboratory equipment. The device is housed in a robust, rack-mountable metal enclosure. Inside, there is a PC equipped with, among other things, a CD-ROM drive and a 3.5" floppy disk drive. Numerous communication ports are available on the rear, allowing it to interface with laboratory devices. Technical specifications: Manufacturer: Agilent Technologies Model: 86030-30011 Serial number: 50860C05 Power supply: 115/230 V AC Bledpfx Acszl Hz Aenjl Frequency: 50/60 Hz Current consumption: 10 A / 5 A Year of manufacture: 2009 (according to the nameplate) Connectors: LAN (RJ-45) VGA PS/2 (keyboard and mouse) COM (RS-232) LPT DAS 1800 interface Additional industrial/specialized connectors Visual condition: Normal signs of use in the form of minor scratches and dirt on the enclosure. The inside of the device appears to be complete. There is a sticker indicating an electrical inspection performed in 2014. Sold without any additional accessories, cables, or software. Included: Agilent Technologies 86030-30011 Controller – exactly as shown in the pictures.

Condition: used, Year of construction: 2015, Technical details: table length: 3000 mm table width: 1500 mm burner heads: 1 X-axis : 3000 mm y-axis: 1500 mm z-axis: 150 mm max. plate thickness : 20 mm weight of the machine ca.: 10 t 1 used CNC laser cutting system PRIMA POWER PLATINO FIBER Switching hours as of June 2024: 65,043 h Incl. - FIBERLASER power source IPG YLS4000 incl. chiller - Incl. STIMA automatic loading and unloading device for raw material and processed sheets for 2D laser machines Compat Server (compact tower) Manufacturer description: The Platino Fiber laser cutting machine is a result of the perfect balance of innovation and experience. This product combines state-of-the-art efficient and ecological fiber laser technology with the proven reliability and flexibility of the Platino platform. The Platino Fiber can be used to cut a variety of materials. Fiber lasers are more effective than other laser sources at cutting highly reflective materials (e.g. aluminum alloys, copper, brass). The Platino Fiber cuts various thicknesses, up to 20 mm of mild steel, with efficiency and quality. The productivity increases are particularly noticeable with thin to medium-sized sheets. Compact servers: is a loading and unloading device for handling blanks and processed sheets. Compact Server consists of two storage units - one for blanks and one for processed sheets. All components of the Compact Server are located above the automatic pallet changer and therefore require no additional floor space. The advantages of these solutions are: reliability, compactness and easy management of loading/unloading operations. The newest product from SPR Italy is a highly sophisticated automation system that combines many innovative solutions that are subject to SPR patents. The system is capable of unmanned operation and provides storage, loading and unloading within the smallest footprint possible. The tower is built above the shuttle table and the loading and unloading is done with the elevator that can be installed on either side of the tower. Simple operation and state of the art PLC contribute to a friendly integration and provide real productivity gain. The system is so compact that it became the top selling automation product, with many hundred of them sold world wide in just few years since it was launched. Compact Tower CT 1530 is capable to store a maximum of 54 ton of raw sheets dim. 1500x3000mm stacked in18 locations, with 80mm each stack, and to load raw sheets onto the machine table and unload processed sheets thereafter. For this example we will use a 18 pallet tower such as we already installed in Melbourne this year. Bljdpfszl D Exox Acnjl The scope of the work includes the software implementation, the tests of the units at SPR factory, shipment, documentation and supervision during installation, start-up and commissioning Concrete foundation to the engineering specifications, civil works, mains electrical supply, permits and the base plates must be supplied by Customer. Major components The Compact Tower is composed with following main units: - tower to store the stack of sheet - elevator to move the pallet on which the stack of sheet is laid - table with fixed pins where the operator load the stack of sheet - gripper with suction cups - light barriers - electric cabinet with control panel - set of safety fences General features: Sheet format max. 3.100×1.570mm Max weight 3.000Kg per stack Max height stack

Condition: new, Year of construction: 2025, High quality, solid construction, reliability and ease of use are the distinguishing features of POWER ROLL feeds. Bsdpfx Acsgykgzjnjll Speeds 3.5 / 5/7/10 / 12.5 / 16/25/32 m / min Feed rollers 3 pcs. Roll diameter 120 mm Roll width 60 mm Roller spring deflection 20 mm Motor power 0.75KW (1.0 PS) Voltage 400V / 50 Hz Weight approx. 57 kg

Condition: used, Year of construction: 2015, Technical details: table length: 3000 mm table width: 1500 mm burner heads: 1 X-axis : 3000 mm y-axis: 1500 mm z-axis: 150 mm max. plate thickness : 20 mm weight of the machine ca.: 10 t 1 used CNC laser cutting system PRIMA POWER PLATINO FIBER Switching hours as of June 2024: 65,043 h Bsdpszlic Nofx Acnjll Incl. - FIBERLASER power source IPG YLS4000 incl. chiller - Incl. STIMA automatic loading and unloading device for raw material and processed sheets for 2D laser machines Compat Server (compact tower) Manufacturer description: The Platino Fiber laser cutting machine is a result of the perfect balance of innovation and experience. This product combines state-of-the-art efficient and ecological fiber laser technology with the proven reliability and flexibility of the Platino platform. The Platino Fiber can be used to cut a variety of materials. Fiber lasers are more effective than other laser sources at cutting highly reflective materials (e.g. aluminum alloys, copper, brass). The Platino Fiber cuts various thicknesses, up to 20 mm of mild steel, with efficiency and quality. The productivity increases are particularly noticeable with thin to medium-sized sheets. Compact servers: is a loading and unloading device for handling blanks and processed sheets. Compact Server consists of two storage units - one for blanks and one for processed sheets. All components of the Compact Server are located above the automatic pallet changer and therefore require no additional floor space. The advantages of these solutions are: reliability, compactness and easy management of loading/unloading operations. The newest product from SPR Italy is a highly sophisticated automation system that combines many innovative solutions that are subject to SPR patents. The system is capable of unmanned operation and provides storage, loading and unloading within the smallest footprint possible. The tower is built above the shuttle table and the loading and unloading is done with the elevator that can be installed on either side of the tower. Simple operation and state of the art PLC contribute to a friendly integration and provide real productivity gain. The system is so compact that it became the top selling automation product, with many hundred of them sold world wide in just few years since it was launched. Compact Tower CT 1530 is capable to store a maximum of 54 ton of raw sheets dim. 1500x3000mm stacked in18 locations, with 80mm each stack, and to load raw sheets onto the machine table and unload processed sheets thereafter. For this example we will use a 18 pallet tower such as we already installed in Melbourne this year. The scope of the work includes the software implementation, the tests of the units at SPR factory, shipment, documentation and supervision during installation, start-up and commissioning Concrete foundation to the engineering specifications, civil works, mains electrical supply, permits and the base plates must be supplied by Customer. Major components The Compact Tower is composed with following main units: - tower to store the stack of sheet - elevator to move the pallet on which the stack of sheet is laid - table with fixed pins where the operator load the stack of sheet - gripper with suction cups - light barriers - electric cabinet with control panel - set of safety fences General features: Sheet format max. 3.100×1.570mm Max weight 3.000Kg per stack Max height stack

Condition: new, Year of construction: 2023, Laser source: Raycus 3 to 6kW Laser head: Raytools autofocus Structure: 2 horizontal chucks Loading: 6.5m unloading 2.5m Software: CAD CAM Tubest, Tube pro (Windows 10) Tube diameter: 15-230mm Bljdponkailsfx Acnol Tube profiles: round, rectangular, square Options: - 3 D swivel head - Automatic bundle loader - Table loader - Conveyor unloader - Weld seam detection - Raybox - Extraction system

Condition: new, Year of construction: 2024, Basic configuration Laser source: Raycus Laser head: Raytool Autofocus Servo: Yaskawa System: FSCUT 5000 A Loading: manual Structure: 3 horizontal chucks CAD CAM: TubesT, TubePro Smoke extractor: Topsin 7.5kW with 6 filters Bodpemx R S Njfx Acnell Tube diameter: 15-350mm tube length: 0-4000/0-6000mm Maschinengröße: 13500x3400x2400mm

Condition: new, Year of construction: 2022, Model DPL-1530HP-4 kW 8 levels, 3000x1500mm (300kg load per level) Loading and unloading system Laser Raycus 4 kW Control system FSCUT 2000ER Laser head Raytools BM115, autofocus Chiller Hanli 3.8 kW Air blower 11kW Nesting software Cypnest-Nesting Software Low-pressure gas alarm, gas pressure monitor, and software control Voltage stabilizer 48-72 KVA Enclosure according to Laser Class 4 Heavy-duty machine base. High-performance servo motors. Intelligent cutting control system, easy operation Fast tack welding, supported by segment and step tack welding technology Specialized air duct with oversized diameter, ensuring smooth fume extraction. Completely enclosed design European CE standard Dual shuttle tables provide a high level of safety and convenience. Positioning accuracy ±0.05/1000mm Repeat positioning accuracy ±0.03/1000mm Acceleration 1.6 m/s² Max. speed 120 m/min Bodpfsci Ik Sex Acnsll Sheet metal loading capacity 1500 kg Size 8907×2813×2658 mm Laser power 6000 W Control system FSCUT 2000 Machine power 32-48 kW Voltage 380V/50Hz Delivery time: 5 months (construction time + transport) Delivery to customer's premises: €3,500 Installation and training: €8,850 Industry 4.0 software: €9,500 FILTERCUBE 2H, 4.0 kW, 40 m²: €10,500 The Filtercube series is a dust extraction system equipped with filter cartridges, used for fume filtration and dust removal.

Condition: new, Year of construction: 2024, Laser source: 12 kW Raycus/IPG Laser head: Precitec Pro-Cutter 2.0 Control system: FSCUT 8000 Bjdpei Ar Ruefx Acnsll Effective working area: 1520x3050 mm Max. positioning speed: 120 m/min Max. acceleration: 1.5 m/s² Positioning accuracy: 0.02 mm/m Repeatability: 0.03 mm/m Max. table load: 1500 kg

Condition: used, Year of construction: 2019, Lifting capacity: 150 kg Please contact Gebrauchtgeräte Center for more information Blodpfozpdraox Acnel

Condition: like new (used), 100 Pcs. Feeders with Magnetic Vibrators and Unbalance Motors. Find our complete stock on our website. Different widths and lengths. Blodpfx Aceggfizonel With different vibrators from quality manufacturers like Aviteq / AEG, Jöst, Friedrich, UHDE, Vibra, Honert, Herweg. Also in stainless steel or for example covered with ceramic or rubber. Please contact us to find a suitable feeder for you.

Condition: like new (used), Year of construction: 2024, functionality: fully functional, input voltage: 400 V, fuel: diesel, continuous power (apparent): 140 kVA, input frequency: 50 Hz, Emergency generator set Blsdpfx Acsznh Rksnel Year of manufacture: 2024 – fully functional.

Condition: new, Year of construction: 2023, functionality: fully functional, machine/vehicle number: GSEM2302014, overall weight: 4,900 kg, fuel type: diesel, tank capacity: 910 l, color: grey, output current: 630 A, output voltage: 400 V, output frequency: 50 Hz, type of output current: three-phase, nominal power (apparent): 481 kVA, continuous power (apparent): 350 kVA, total length: 4,300 mm, total width: 1,500 mm, total height: 2,300 mm, rotational speed (max.): 1,500 rpm, motor manufacturer: YUCHAI, type of cooling: water, Equipment: CE marking, type plate available, REM Power GSEm 350000 SDEW is a high-performance industrial diesel generator designed for professional use in environments where reliable power supply is crucial. This model offers a rated output of 350 kW, maximum output of 385 kW, rated current of 630 A, and operates at 400 V, 50 Hz. It is equipped with a 6-cylinder engine, water cooling, AVR system for automatic voltage regulation, digital display for voltage, frequency, and operating hours, as well as electric start with included battery. The built-in ATS (Automatic Transfer Switch) function ensures automatic generator start-up in case of power failure, with additional protection provided by a low oil pressure alarm. The large steel fuel tank with a capacity of 910 liters enables up to 13.5 hours of continuous operation. The generator features a 3-phase direct connection, dimensions of 4300 × 1500 × 2300 mm, and a total weight of 4900 kg, making it suitable for demanding commercial and industrial applications. ATS cabinet included. For sale: a professional diesel generator REM Power GSEm 350000 SDEW. The unit delivers a rated output of 350 kW and maximum output of 385 kW, operates at 400 V / 50 Hz, and achieves a rated current of 630 A. It is equipped with a 6-cylinder engine, water cooling, AVR voltage regulation, digital displays for voltage, frequency, and operating hours, electric start with included battery, and ATS function for automatic start-up in case of a mains power outage. The generator also features 3-phase direct connection. It comes with an integrated 910 L steel fuel tank, providing up to 13.5 hours of continuous operation. The overall dimensions are 4300 × 1500 × 2300 mm, with a total weight of 4900 kg. Manufacturer’s article number: 39350000502. Bljdpfxjy Au Rij Acnel Technical Data: Manufacturer: REM Power Model: GSEm 350000 SDEW Rated power: 350 kW Max power: 385 kW Rated current: 630 A Voltage: 400 V Frequency: 50 Hz Engine displacement: 16,350 cc Fuel: Diesel Tank capacity: 910 L Continuous operation: 13.5 h Dimensions: 4300 × 1500 × 2300 mm Weight: 4900 kg

Condition: used, Year of construction: 2016, Lifting capacity: 150 kg Bsdjzm E Auepfx Acnell Please contact Gebrauchtgeräte Center for more information

Condition: used, SincoTec Model: POWER FLOW BIAXIAL 125/150 kN ±4000 Nm SincoTec POWER FLOW BIAXIAL 125/150 kN – ±4000 Nm Servo-hydraulic Test Stand Description: For sale is a servo-hydraulic biaxial test stand SincoTec POWER FLOW BIAXIAL. The unit has been used in an industrial environment and was fully functional up to decommissioning. All service and maintenance were professionally performed. Comprehensive technical documentation (operating, assembly, and wiring manuals) is available. The test stand is suitable for tensile/compression tests, torsion tests, and combined loading tests on components and assemblies, e.g. for fatigue, durability, and functional testing. Main technical data for the test stand: - Maximum test force (design): up to ±150 kN - Typical operating rating: 125 kN - Max. torque (torsion): ± 4,000 Nm - Max. linear cylinder stroke: ± 75 mm - Max. rotation angle: ± 50° - Measurement accuracy: Class 1 (DIN EN 10002-3) Test stand dimensions: - Total height: approx. 3,430 mm - Width: approx. 1,480 mm - Depth: approx. 1,180 mm - Max. weight of clamping fixture: 250 kg Hydraulic power unit (included) - Drive power: approx. 152 kW - Flow rate: approx. 260 l/min - Operating pressure: up to 280 bar - Hydraulic oil: HLP ISO VG 46 - Tank capacity: approx. 1,500 liters Power unit dimensions: - Length: approx. 2,714 mm - Width: approx. 1,820 mm - Height: approx. 2,085 mm Electrical data: Control cabinet / test stand - 400 V / 50 Hz - Connection: CEE 5-pin - Fusing: 16 A Hydraulic power unit - 400 V / 50 Hz three-phase current - Direct connection - Fusing: approx. 160 A Scope of delivery: - SincoTec POWER FLOW BIAXIAL servo-hydraulic test stand - Hydraulic power unit - Control cabinet with industrial PC - Measurement and control technology - Technical documentation The machine is structurally rated for up to 150 kN. The 125 kN specification refers to the typical operational configuration. Blsdpfx Aezimcbecnsl Test stand weight: approx. 4.7 t Important note: “The table shown in the photos is not included in the sale.” Condition: used Scope of delivery: (see photo) (Specifications subject to change and errors excepted!) Further questions can be answered by phone.

Condition: excellent (used), Dr. Hönle Dr. Hönle UV Technology – Bluepoint LED High-Power + Bluepoint 2 easycure – Complete System incl. LED Spots & Manuals For sale is a complete UV curing system by Dr. Hönle, consisting of two control units and several LED spots. Ideal for professional applications in electronics manufacturing, medical technology, optics, plastics processing, and laboratory operations. Description: The system includes: - Bluepoint LED High-Power Control Unit (REF 45250.c) - Bluepoint 2 easycure Control Unit (REF 33900.a) - Several UV LED spots (e.g., 365 nm, air-cooled) - BP-LED 4-1 Adapter (REF 45970.a) – for controlling up to 4 spots - Original operating manuals + CD The units enable precise control of exposure time, intensity, and energy – ideal for reproducible industrial UV curing processes. Technical Data: Bluepoint LED High-Power (45250.c): - Power supply: 36 V / 5.5 A - Control for up to 4 LED spots - Adjustable UV intensity - Timing programs and energy measurement Bledpjzimamjfx Acnel Bluepoint 2 easycure (33900.a): - 230 V AC, 50 Hz - 570 VA power consumption - High-performance LED control - Industrial quality, Made in Germany Total Dimensions/Weight: approx. 12–15 kg Important Note: “The table shown in the photos is not included in the sale.” Condition: used Scope of delivery: (see photo) - Bluepoint LED High-Power - Bluepoint 2 easycure - LED spots (air-cooled) - BP-LED 4-1 adapter - Operating manuals - CD - Original documentation (subject to changes and errors in technical data and information!) We are happy to answer further questions by phone.

Condition: good (used), functionality: fully functional, Year of construction: 2013, load capacity: 200 kg, lifting height: 4,500 mm, platform length: 1,195 mm, platform width: 750 mm, overall weight: 485 kg, empty load weight: 285 kg, Power Towers Nano Vertical Manlift – Year of Manufacture 2013 – Used For sale is a used Power Towers Nano Vertical Manlift from the year 2013. This compact, self-propelled aerial work platform was specifically designed for work in confined indoor spaces and impresses with its high maneuverability, ease of operation, and low weight. It is ideal for maintenance, installation, electrical, painting, and renovation work. Technical Data: Manufacturer: Power Towers Model: Nano Vertical Manlift Year of Manufacture: 2013 Self-propelled Maximum working height: approx. 4.50 m Compact design – ideal for narrow passages and indoor areas Bedpfjzmfrpex Acnsll Low weight – also suitable for sensitive floors The aerial work platform is in used, functional condition and shows the usual signs of wear and tear for its age. If you are interested or have any questions, please do not hesitate to contact us. An inspection can be arranged at any time by prior appointment. *Working Dimensions* - *Maximum working height*: 4.50 m - *Maximum platform height*: 2.50 m - *Platform dimensions*: 1.00 m x 0.73 m - *Footprint*: 1.19 m x 0.75 m - *Permissible load capacity*: 200 kg (1 person + tools) - *Max. manual force*: 200 N - *Max. slope during operation*: 0° - *Max. wind speed*: Only for indoor use, 0 mph - *Manual pushing force on level ground*: 9 kg - *Max. total weight including payload*: 485 kg - *Max. load at wheel contact point*: 180 kg (1.77 kN) - *Max. wheel force*: 1.75 kN *Dimensions in folded state* - *Length*: 1.195 m - *Width*: 0.750 m - *Height*: 1.560 m - *Weight*: 285 kg *Power Supply* - Standard 12V DC electric motor - Or 240V AC electric motor 13A connection - Or 110V AC electric motor 16A connection *Battery Charger - Technical Data* - *Input voltage*: - Single voltage: 90-135V AC (UK) / 180-265V AC (outside UK) - Dual voltage: 90-265V AC - *Frequency*: 45-65 Hz - *Output*: 12V DC, 7A - *Sound power level*: Less than 70 dBA - *Emissions EN 55014N, EN 61000-3-2*

Condition: good (used), Double bench grinder, double grinding machine, pedestal grinder, pedestal grinder -Engine power: 1.1 kW -Grinding discs: 300 x 40 -Operating voltage: 380 volts Bljdpfob A Hw Njx Acnsl

Condition: good (used), Double bench grinder, double grinding machine, pedestal grinder, bench grinder, drill grinding machine Bedeb A H Eyjpfx Acnsll -Grinding disc: max. Ø 200 x 30 mm -Speed: 2800 rpm -Motor power: 0.74 kW -Operating voltage: 380 volts

Condition: good (used), electric motor, three-phase motor -Power: 32/46 kW -Speed: 730/1470 rpm Bljdpfx Astr R Ahocnsl -Shaft: Ø 55 mm -Design: B3 -Protection rating: IP55 -Quantity: 1x motor available -Dimensions: 970/630/H520 mm -Weight: 465 kg

Condition: good (used), two-armed drill, rotary drill, magnetic drill, impact drill, two-hand drill -Taper: MK with drill chuck -Nominal consumption: 250 W -Connection: 220 volts -Max. Drill: Ø 15 mm -Dimensions: 420/420/H120 mm Bodpfofc Hf Aox Acnoll -Weight: 7.1 kg

Condition: good (used), Electric motor, three-phase motor -Power: 0.25 kW Blodpjghifmofx Acnol -Speed: 670 rpm -Shaft: Ø 19 x 40 mm -Design: B3 -Protection class: IP 54 -Number: 2x motors available -Price: per piece -Dimensions: 280/205/H150 mm -Weight: 7.5 kg