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Residual-current monitoring

RCM53xA Type A Residual Current Monitor

Observe circuit-current changes with a separate transformer

RCM53xA provides Type A residual-current monitoring for hospital circuits and driven equipment. Used with a separate zero-sequence current transformer, it observes leakage and stray-current changes. Switching outputs support circuit-monitoring arrangements. Confirm the transformer and interfaces for the actual circuit conditions.

Medical system applicationExplore power distribution for hospital Group 2 locationsExplore how isolation power, monitoring, alarms and critical loads work together.

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PRODUCT INSIGHTS

Separate current transformer

Works with a separate zero-sequence current transformer; check the compatible model in the selection table.

Leakage and stray currents

Monitor leakage and stray-current conditions in hospital and power circuits.

Switching-signal outputs

Provides switching outputs for integration with associated circuit-monitoring equipment.

Application concept

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Hospital TN and IT circuits
Elevator motors and conveyor systems
Electric heating and medium-frequency power systems

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Product information

TECHNICAL SPECIFICATIONS

Product specifications & functions

Monitoring type: Type A residual-current monitor for AC and pulsating DC residual currents, with a 15 Hz–2 kHz frequency range.
Measurement range: True-RMS measurement range: 0–30 A.
Trip thresholds: Selectable thresholds: 10, 30, 100, 300 or 500 mA, and 1, 3, 5, 10 or 30 A.
Alarm outputs: Dual-relay alarm outputs, with optional 4–20 mA analogue output.
Mounting: Approximately 53 mm wide; 3-module DIN-rail mounting.

Specifications & technical illustrationsExplore technical details · 6 technical illustrations

Technical reference · English

Matching accessories

Equipped with professional zero-sequence current transformer: please refer to the selection table for detailed parameters

Residual current monitor 3 — Select image to view full size

DO output

Documentation

PDF

RCM53x Type A (including Type AC) Residual Current Monitoring

RCM53xA · RCM53xAC · 0.6 MB

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Select the model and configuration for your supply system, load and installation conditions. Use the applicable product documentation for installation and operation.