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Number of Poles

Power Loss

7.6 W

at Rated Operating Conditions per Pole 4 W

Rated Frequency (f)

50 … 60 Hz

Rated Operational Voltage

230/400 V

115-230-400 V AC

Short-circuit current rating (SCCR)

0.03 ... 0.03 A

Residual current monitors (RCMs) with external transformer can detect leakage currents. Through minidip you can set sensitivity and intervention time. According to the same diameter, transformers are made in a single version for all relay sensitivity values.

The RCD block DDA200 series is suitable for assembly with MCBs S200 series and S300P. It assures protection against the effects of sinusoidal alternating and direct pulsating earth fault currents, protection, against indirects contacts and additional protection against direct (with sensitivity = 30 mA) contacts. Applications: residential, commercial, industrial.

DDA203 A-63/0.03

Residual Current Device Block DDA200 - 3P - 30 mA - 63 A - Type A

The ELR electronic residual current relay allows monitoring and protection of the
low voltage distribution network, through the use of a toroidal transformer.
Protection is achieved in combination with the MCBs and MCCBs.  The ELR front panel residual current relay is compliant with protection standard 60947-2 Annex M in order to offer a cumulative operational time (residual current relay, shunt-trip, circuit breaker) guaranteed by the manufacturer.

ABB Residual Current Devices RCDs