ABB ELR72 Electronic Differential Relay

It allows monitoring and protection of the low-voltage distribution network by using a toroidal transformer. Protection is achieved in combination with MCB and MCCB. The ELR front panel residual current relay complies with Protection Standard 60947-2 Annex M to provide a cumulative operating time (residual current relay, shunt-trip, circuit breaker) guaranteed by the manufacturer.

Panel-mountedresidual current devices are electronic protective devices that are used in conjunction with a transformer. used in conjunction with an external toroidal transformer. The products comply with the The products comply with the IEC/EN 60947-2 Annex M protection standard. Available with Fail Safe function and frequency filter (ELR96PF) or with digital display (ELR96PD) in size 72x72.

Technical data

• Reference standards: IEC EN 60947-2 Ann M
• Mounting type front panel
• Nominal operating voltage: 110 V AC/DC, 230 V AC
• Power loss: at Nominal Operating Conditions per pole 4 W
  
• Width 72 mm
• Height 0.072 mm
• Depth/Net Length 88 mm
• Weight 0.187 kg
  
  

Environmental Data

• RoHS Declaration: According to EC Directive 2011/65/EC