9902823007

Series 99 modules for sockets

Plug-in modules are convenient add-on devices for relays which offer LED indication (for ease of viewing relay status from a distance), diode protection, RC circuits, bypass and timing facilities for all socket-mounted plug-in relays. The modules simply plug into specific sockets to enhance the relays functionality.

Depending on module selected, they can provide;

• Suppression of coil back emf on switch-off
• LED indication to show when the coil in energized
• Protection against reverse polarity applied across the coil terminals
• By-pass of troublesome leakage currents in the coil circuit

Residual current bypass module

Bypass modules are used in applications for 110 and 220 VAC relays with a tendency to fail to release, mainly caused by residual currents from AC proximity switches or inductive coupling caused by long parallel lying AC control lines.