Earth leakage relays and toroids

ELRs ensure protection of electrical installations and protection of persons against direct and indirect contact. It also provides monitoring of earth fault currents.

A complete offer of earth leakage relays

User instructions

With fixed and adjustable sensitivities and time delay

Fixed relay

Adjustable relay

Sensitivity

30mA

300mA

0.03 / 0.1 /
0.3 / 0.5 / 1 /
3 / 10

0.5 / 1 /
3 / 5 / 10 /
20 / 30A

0.03 / 0.1 /
0.3 / 0.5 /
1 / 3 /

Time-Delay

Instantaneous

0 / 0,1s /
0,3s / 0,4s /
0,5s / 1s / 3s

0 / 0,1s /
0,2s / 0,25s /
0,3s / 0,4s / 0,5s

0 / 0,1s /
0,3s / 0,5s /
0,75s / 1s

HR500

HR502

HR510-HR520

HR522

HR523

HR440-HR441

Toroids

Circular toroids

6 circular section toroids from diameter 30 mm to 210 mm.

Rectangular toroids

Available dimensions: 70 x 175 mm, 115 x 305 mm, 150 x 350 mm

Open toroids

Open rectangular section toroids are adapted for renovation, as it is not necessary to disconnect the cables (80 x 80 mm, 80 x 120 mm, 80 x 160 mm).