The RD2 relays are designed for leakage current detection and are classified as “A Type” according to IEC/EN62020. They are sensitive to leakage sinusoidal currents and to leakage pulsating currents with direct components.

Residual current monitors (RCMs) with external transformer can detect leakage currents. Through minidip you can set sensitivity and intervention time. Operating voltage: 230…400V a.c.

剩余电流监视器符合IEC 60947-2 Annex M和IEC 62020标准，仅在绝缘故障发生时发出警报信号，或与保护设备结合使用，检测对地泄漏电流。 包括导轨安装的RD2/RD3系列以及面板式安装的ELR系列。

The new range of ELR products from ABB comply with IEC/ EN 60947-2 Annex M and is tested within a configuration that includes residual current relay, toroid, shunt-trip, MCCB/MCB available in ABB offer.

El documento detalla la protección diferencial con el relé RD3 y el transformador toroidal TR para aplicaciones de 800V AC. Incluye especificaciones técnicas, consideraciones de instalación y selección de transformadores toroidales según el diámetro y la intensidad máxima monitorizada. PDF preview of ELSB master catalogue, part B, 02 RCD (s)

La tabella 2 riporta le caratteristiche tecniche dei trasformatori toroidali. I livelli di regolazione della corrente IΔn variano da 0,03 a 30 A mentre la regolazione del tempo di intervento varia da 0 a 5 secondi, garantendo in questo modo flessibilità nell’utilizzo in molteplici tipologie applicative.

The RD2 differential relay, combined with an external toroidal transformer, protects line cables against earth directed faults. The RD2 version cod.EG 316 2 can be powered on AC (from 230V to 400V).

2CSM242120R1201 – RD2-48 RELAY – ABB $ 189.88 $ 132.92 In stock

Protezione in conformita alla Norma CEI EN 60947-2 Annex-M. ELR: ABB range of front panel residual current relays. Protection device according to IEC/EN 60947-2 Annex M. ABB Library …

components max. 10 mA Detection of mixed frequency current up to 1 kHz. In accordance with the possibility of recognizing the most varied forms of residual current and the relatively demanding device testing, the spectrum of RCD types t. day ranges from protect-ing pure AC consumers to high-frequency consumers. The level of protect. e A function