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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.

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).

A complete offer of earth leakage relays

With fixed and adjustable sensitivities and time delay
Fixed relayFixed relayAdjustable relayAdjustable relayAdjustable relayAdjustable relayAdjustable relay
Sensitivity
30mA
300mA
0.03 / 0.1 /
0.3 / 0.5 / 1 /
3 / 10
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
Instantaneous
0.03 / 0.1 /
0.3 / 0.5 / 1 /
3 / 10
0 / 0,1s /
0,2s / 0,25s /
0,3s / 0,4s / 0,5s
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
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