RCM420-D-2 Bender

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RCM420-D-2 Bender  Digital I/O Module In Stock

• History memory with real-time clock to store up to 300 timestamped event records

• Galvanically isolated RS-485 interface (BMS protocol) for data exchange with other 

Bender devices and communication systems

• Standby contacts and RS-485 communication for operating multiple ground fault detectors

 in systems tied together with tiebreakers or interlocks

• Galvanically isolated analog output, 0(4 ) - 20 mA

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

Product details:

RCM420-D-2 Bender  Digital I/O Module

Payment: Bank of Chicago, Bank of Singapore

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E-mail: alex@fenoux.com

Tel.: +86 13338369201

Skype: +86  13338369201

WhatsApp: +86  13338369201

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