IR475LY-421 BENDER

IR475LY-421 BENDER Processor module

Brand：BENDER Model number：IR475LY-421

Country of origin: Germany Product weight：0.55kg

HS code：9032899099

Product Details：

Product Dimensions：

The RCM470LY monitors for ground faults in grounded and high-resistance grounded AC systems, both single- and three-phase. The RCM470LY is specially designed to provide advanced warning of developing ground faults without the problems associated with high sensitivity nuisance tripping.

A wide, steplessly adjustable setpoint range allows for flexibility in a variety of systems. A DPDT contact allows for both information transmission (such as to a PLC) and power interruption (such as through a contactor or shunt trip breaker).

Since the values are measured using a special current transformer, the RCM470LY is nearly independent of the load current and the system voltage. The device can also be used for

busbar systems.

Measurements of the system's ground fault current are taken via an external current transformer. All phases (including the neutral if one exists) are placed through the current transformer. The currently measured value (measured as a percentage of the setpoint) is indicated on the LED bar graph.

If the measured value exceeds the response value, the contacts switch over and the alarm LEDs activate after the time delay has expired. If the device is set to non-latching mode and

the ground fault clears, the alarms will then clear. If the device is set to latching mode, the alarms will not clear until the device is reset manually or the supply voltage is lost.

The TEST function allows for an internal operation testing of the device. Settings are modified via the device's DIP switches and potentiometers.

The connections between the device and the external current transformer are continuously monitored. If the device detects a connection error, the CT connection monitoring alarm

will activate, and the contacts will change over without delay

• Ground fault detection in single- or three-phase AC systems

• Motors and motor control systems

• Generators, portable and fixed

• Alarm systems, safety devices

• Current monitoring of normally offline single conductors

• Cooling equipment with valuable frozen goods

• Industrial controls

• Heat tracing systems

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