9902906099

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

LED + diode module

Recovery diode + LED module are used for DC, reverse voltage peaks are short circuited by the recovery diode (positive to terminal A1), release time is increased by approximately 3 times, if this is undesirable use a varistor or RC module. LED indicator illuminates when coil is energised.