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Bender is a world – leading enterprise in the field of low – voltage system leakage protection technology. Since its founder, Walter Bender, invented the first insulation monitor in 1939, the company has been committed to the research and development of electrical safety products, and its automation products are widely used in various industries, mainly including the following categories:
- Insulation Monitoring Devices: Used to monitor the insulation status of IT systems. For example, the IR/IRDH series can monitor the insulation of the entire IT system to the ground. The IR420 – D4 type is suitable for IT systems with AC0 – 300V, with a liquid – crystal display, two – group independent response value settings, and the response value adjustment range is 1 – 200kΩ. The IRDH275 type is suitable for IT systems with AC, 3(n)AC, AC/DC0 – 793V or DC0 – 650V, with functions such as adaptive system leakage capacitance and system leakage capacitance display, and is equipped with an RS485 interface.
- Insulation Fault Location Systems: Such as the EDS series, which can not only monitor the insulation status of the IT system to the ground, but also online find the loop where the ground fault occurs, helping to quickly locate and solve faults.
- Residual Current Monitors: Used in TN – S or TT systems (neutral – grounded systems) to monitor residual current. The RCM series is used to monitor the residual current of AC or pulsating DC components, the RCMA series can monitor the residual current of smooth DC, pulsating DC or AC components, and the RCMS series adopts a modular design. For example, the LINETRAXX RCMS460/490 series can perform sensitive measurement of AC, pulsating DC or AC/DC by selecting the corresponding current transformer for each channel, with functions such as true – rms value measurement, historical memory, and harmonic analysis.
- Protection Relays: Bender’s low – voltage protection relays are electronic measuring relays, with a very wide adjustment range of response values, and are equipped with various time – delay and action value memory functions, which can monitor key system values such as voltage, current, and phase sequence.
- Medical Electrical Safety Test Equipment: Designed according to the corresponding IEC standards, such as the portable and multi – purpose medical electrical tester Unimet1100ST, which is used to ensure the electrical safety of medical equipment.
- Isolated Power Systems for Healthcare Facilities: According to standards such as IEC60364 – 7 – 710 and GB16895.24 – 2005, it is specially designed for Class 2 medical places. It is mainly composed of a medical isolation transformer, an insulation monitor, and an external alarm display, with a capacity of 3.15kVA to 10kVA optional. At the same time, Bender also provides a dual – power automatic switching device for medical IT systems.
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