Undercurrent relays can be manufactured for all currents. However, the following relaionships must be taken into account:
The dropout current may be between a maximum of 70% and a minimum of 25% of the pickup current.

Undercurrent relays can be supplied for the following continuous currents:

Variant 81 cont. current 1 to 200 Amp. for 2x pickup current at the most
Variant 82 cont. current 1 to 200 Amp. for 3x pickup current at the most
Variant 83 cont. current 300 to 600 Amp. pickup currents as for var. 21-25
Variant 84 cont. current 800 Amp. pickup currents as for var. 31-33
Variant 85 cont. current 1200 Amp. pickup currents as for var. 41-44
Variant 86 cont. current 1600 Amp. pickup currents as for var. 51-54
Variant 87 cont. current 2500 Amp. pickup currents as for var. 61-64

The undercurrent relays are equipped with only one contact, which may be either open or closed when the relay is energized (attracted).

Variant Cont. current Amp. Weight a) Dimension Fig. Test voltages Price item
Coil – Mag.system
kV, 50Hz, 1min		 Mag. system – Contact
kV, 50Hz, 1min
Var. 81 1 – 200 A 1.1 kg 2 10 11
Var. 82 1 – 200 A 1.3 kg 2 10 12
Var. 83 300 – 600 A 1.1/1.3 kg at equal potential 10 13
Var. 84 800 A 1.6 kg 10 14
Var. 85 1200 A 2.1 kg 10 15
Var. 86 1600 A 3.1 kg 10 16
Var. 87 2500 A 3.5 kg 10 16

aExcluding separate packing.

Var 7 spez.

Var 23

Var 42