BENDER IRDH275-435 Digital Ground Fault Monitor

Brand: BENDER

Model number: IRDH275-435

Colour: new

Warranty: 12 months

Lead Time: 3-day working day

Country of origin: Germany

Price: Please contact us

Product weight: 0.505kg

Shipping Port: Xiamen, China

Payment: T/T

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Product Dimensions: 

BENDER IRDH275-435 Digital Ground Fault Monitor

This device meets or exceeds the requirements of NEC 250.21(B) and CEC 10-106(2) for ground detectors in ungrounded AC systems, as well as the upcoming 2014 requirement of NEC 250.167(A) for ungrounded DC systems. The IRDH275 monitors for ground faults in ungrounded single-phase AC, three-phase AC, and DC systems by monitoring the system's insulation resistance. It may be connected to systems of up to 793 VAC / 650 VDC. Voltage coupler accessories extend this range. The AMP Plus measuring principle utilized by the IRDH275 meets the requirements of modern power systems, including pure DC systems, systems with rectifiers, and systems with variable frequency drives (VFDs). In systems with high leakage capacitances, the IRDH275 automatically adapts itself to ensure an accurate reading. The IRDH275 features a digital display showing the system's insulation resistance'in real-time. All settings are changed via the device's built-in menu. The IRDH275 utilizes an external supply voltage for power, which allows deenergized systems to also be monitored. For a panel mounted version, please refer to the IRDH375

1 - External supply voltage used to power device

2 - Wiring diagram for a three-phase system. Only two connections to the system are necessary to monitor all three phases.

3- Wiring diagram for a single-phase system

4 - Wiring diagram for a DC system

5 - Equipment ground connections

6 - External test button (normally open contact)

7 - External reset button (normally closed contact). When the terminals are open, the fault message will not be stored.

8 - Standby contact. When the contact is closed, no insulation measurements take place.

9 - IRDH275: Analog output, electrically isolated: 0 - 400 µA IRDH275B: Analog output, electrically isolated: 0 - 20 mA or 4 - 20 mA

10 - RS-485 interface: IRDH275: One-way ASCII stream with measurement status IRDH275B: Two-way communication with other BENDER devices, including communication gateways

11 - Alarm relay 1, normally energized or de energized contact 12 - Alarm relay 2/System Fault Relay, normally energized or deenergized contact