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Obsolete Industrial Relays & Sockets

This category covers discontinued industrial relay and socket products, including timer relays, monitoring relays, latching relays, and associated accessories from the legacy product range. Technical documentation and replacement recommendations are available to support maintenance of existing installations. By preserving product knowledge and offering migration guidance, this category helps operators manage lifecycle transitions while maintaining operational continuity and system reliability.

1L710 700 Series

Liquid Level Relay

The 1L710 Series relays are solid-state liquid level detecting relays with electromechanical output contacts. Designed for auxiliary mains voltages, the 1L710 applies an isolated low AC voltage to immersion probes, eliminating damaging electrolytic a...

ACD series

DC voltage monitoring applications, for example battery packs. Smitt style pinning. 1CO + 1NO contact. DC coil. Flash barrier. Cadmium free contacts. Battery voltage, 2 levels. Adjustable pull-in & hysteresis. Triptime, 20 ms (if 6&8 connec...

CTD4

Plug-in electronic customizable timer relay with four change-over contacts. Fully customizable according customer’s requirements concerning timing diagram and delay type. Almost any timing diagram is possible: for example time delays with delay...

FDA Series

Plug-in electronic pulsing relay with two change-over contacts, suitable for DC and AC coil voltage (50/60 Hz). When the relay is activated the coil starts with an interval. The pulse time and interval time are equal. The pulsing frequency is adjusta...

FDA4 Series

Interval timer relay (flashing relay) for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Pulse = interval time. Start with intervaltime 20…60 flashes/minute, 40…120 flashes/minute...

FDC Series

Interval timer relay (flashing relay) for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Pulse = 1s. Interval = 30s. Plug in power relay. Smitt-style pining. 2 C/O contacts. DC and AC coil. F...

KCD Series

Heavy-duty latching/bistable relay for demanding applications. Equipped with a magnetic latch (permanent magnet). Due to pulse activation less heat dissipation and energy consumption than instantaneous relays. Plug in relay. Smitt-style pinning. 2 C/...

KCS Series

Heavy duty latching / bistable relay for demanding applications. Equipped with magnetic latch (permanent magnet). Due to pulse activation less heat dissipation and energy consumption than instantaneous relays. Plug in relay. Contagion-style miniature...

TDB2 Series

Delay on timer relay for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Plug in power relay. Smitt-style pining. 2 CO contacts. DC and AC coil. Flash barriers. 2 LED indicators. Cadmium free ...

TDBE Series

Delay on & delay off timer relay for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Plug in power relay. Smitt-style pining. 2 C/O contacts. DC and AC coil. Flash barriers. 2 LED indicat...

TDBE4

Plug-in Industrial relay with 4 contacts

Plug-in electronic Industial timer relay with delay-on and delay-off function and three change-over contacts and one normally-closed contact. The delay times are independently adjustable with two lockable knobs. The relay can also be supplied with on...

TDDB Series

delay on + direct switching timer relay. 2 C/O contacts direct and 2 C/O contacts time delayed. For demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Plug in. DC and AC coil. Flash barriers. LED indicator. ...

TDE Series

Delay off timer relay for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. No auxiliary supply needed. Plug in power relay. Smitt-style pining. 1 C/O and 1 N/O contact. DC and AC coil. Flash ba...

TDE3 Series

Delay off timer relay for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Plug in power relay. Smitt-style pining. 3 C/O contacts. DC and AC coil. Flash barriers. 2 LED indicators. Cadmium fre...

TDE4 Series

Delay off timer relay for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Plug in power relay. Smitt-style pining. 4 C/O contacts. DC and AC coil. Flash barriers. 2 LED indicators. Cadmium fre...

UMD Series

Over voltage & under voltage monitoring relay for demanding AC or DC applications. Plug in relay. Smitt style pinning. 1CO + 1NO contact. DC and AC coil. Flash barrier. 2 LED indicators. Cadmium free contacts. Adjustable with a lockable knob. No...

WDDF

Pulse relay (one shot relay) for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Generates a 0,5s. (fixed) pulse on de-activation. Plug-in relay. Smitt-style pining. 2 C/O instant + 2 N/C time...

WDE4 Series

Pulse relay (one shot relay) for heavy duty, demanding applications, switching of AC & DC voltages, resistive and/or inductive loads. Generates a pulse on activation. Plug-in relay. Smitt-style pining. 4 C/O contacts. DC and AC coil. Flash barri...

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