Product description
3.8 3RB31 solid-state overload relays
SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic overload relays
46 Manual, 09/2016, A5E03656507420A/RS-AB/003
2/T1 Main circuit terminals
6/T3
NC contact (NC 95-96)
NO contact (NO 97-98)
Terminals for electrical remote RESET
A sealable transparent cover can be optionally mounted on the electronic overload relays in
the sizes S00, S0, S2 and S3 (Accessories (Page 123)). It stops the motor setting being
tampered with.
3RB21 / 3RB31 electronic overload relays are equipped with an NO contact for the "tripped"
message and an NC contact for disconnecting the contactor.
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