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Front panel residual current relays
ELR

ELR front panel residual current relay
Front panel residual current relays are electronic devices used in combination with
an external toroidal transformer. ELR devices are according to the protection standard
IEC/EN 60947-2 Annex-M when used in conjunction with external toroids belonging
ELR48P to TR family, all S200 miniature circuit breakers and Tmax/XT range moulded case devices
up to T5/XT4, for industrial installations.
The sensitivity can be set from 0.03 A to 30 A, while the tripping time from 0 to 5 seconds.
Residual current relays are available in versions 48x48 mm, 72x72 mm, and 96x96 mm.
The Fail Safe function is available for versions ELR48P, ELR72P and ELR96P: the contacts
switch when there is no auxiliary power.
The ELR96PF version is equipped with Fail Safe function, fault memory LED, and a frequency
ELR72 filter, that ensure continuity of service in the presence of harmonics.
ELR96PD has (in addition to these functions) a digital display for an instantaneous view
of the residual current I∆n.

Operating voltage Bbn Order details Price Weight Pack
8012542 1 piece 1 piece unit
[V] EAN Type code Order code [kg] pc.
ELR96 110 V a.c./d.c. - 230 V a.c. 748229 ELR48P 2CSG252211R1202 0.112 1
24-48 V a.c./d.c. 734826 ELR48V24P 2CSG452211R1202 0.112 1
110 V a.c./d.c. - 230 V a.c. 733928 ELR72 2CSG252120R1202 0.322 1
24-48 V a.c./d.c. 747024 ELR72V24 2CSG452120R1202 0.322 1
110-230-400 V a.c. 734727 ELR72P 2CSG152424R1202 0.322 1
24-48 V a.c./d.c. 733829 ELR72V24P 2CSG452424R1202 0.322 1
110 V. a.c./d.c.-230-400 V a.c. 734628 ELR96 2CSG152130R1202 0.383 1
24-48 V a.c./d.c. 733720 ELR96V24 2CSG452130R1202 0.383 1
110-230-400 V a.c. 734529 ELR96P 2CSG152434R1202 0.383 1
ELR96PD
24-48 V a.c./d.c. 733621 ELR96V24P 2CSG452434R1202 0.383 1
110-230-400 V a.c. 734420 ELR96PF 2CSG152435R1202 0.383 1
110-230-400 V a.c. 733522 ELR96PD 2CSG152436R1202 0.383 1