Service Section Technical Pages

 12 Volt (NO) NORMALLY OPEN RELAYS RANGE

Solution Graphics (last price update 23/02/12)

Part No

Image

Current rating

Description

Nett Price View/Buy Link

SARB533

12v 20Amp Relay

20A

Normally Open Relay with fixing bracket

�7.26

SARB520

12v 30Amp Relay

30A

Normally Open Relay with fixing bracket

�5.32

SARB522

30A

Fused Normally Open Relay

�10.56

SARB523

12v 40Amp Relay

40A

Normally Open Relay

�7.26

SARB544

70A

Normally Open Heavy Duty Relay

�9.44

SARB542

200A

Heavy Duty 12v Power Relay

�27.04

Normally Open Relay Description

A normally open relay consists of an electromagnetic coil which actuates switch contacts . This allows a load circuit to be switched by a control circuit. The normally open relay switch contacts are open or not linked whilst the relay coil is not powered. When the control circuit terminals 85 (-ve return) & 86 (control +ve) receive power this energises the electromagnetic coil which moves to close the switch contacts and "make" the load circuit between terminals 30 (supply ) and 87 (load).

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