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Timer Relays

Connect or disconnect after a timed delay with Schrack Technik timer relays. Our extensive range of models offers the right choice for all applications.

If you need to switch something on or off some time after actually deactivating it, the use of a timer relay is a good choice. Timer relays are mounted on DIN rails. By connecting several timer relays in series it is possible to set up a switching sequence. The time range of Schrack Technik timer relays can be set between a few milliseconds and 100 hours. Timer must always be set in the de-energised state. There is a wide variety of timer relays available; for every application the suitable relay:

Measuring and Monitoring Relays

The voltage, current, phase, level and thermistor monitoring relays are available in industrial type or DIN rail design.

 

Single Function Timer Relays

The classic delayed-on or delayed-off function is best realised with a monofunction timer relay from Schrack Technik. The Series 5 rail mounting relay operates with 1 CO, a voltage range from 24-240 V AC or V DC and is 17.5 mm wide.

Schrack Technik Timer Relays

Tripping delay: 1 function, 1 CO ZR5E0011

Release delay: 1 function, 1 CO ZR5R0011

 

Dual Function Timer Relays

On the bigger model of the rail-mounted timer relays a tripping delay and a release delay can be set at the same time. The Series 5 dual function timer relay from Schrack Technik has 1 CO, a component width of 17.5 mm, and operates in the multi-voltage range from 24-240 V AC/DC.

Schrack Technik Timer Relays: 2 functions, 1 CO ZR5ER011 

 

Multi-Function Timer Relays

With its 7 functions the multi-function timer relay is a true multi-talent among the Schrack Technik timer relays. The DIN rail mounted Series 6 relay is available with either 1 or 2 COs and support a multi-voltage range from 12-240 V AC/DC.

 You can set the following 7 functions on the multi-function timer relay from Schrack Technik:

·         Tripping delay

·         Release delay with control input

·         Leading edge impulse with control input

·         Trailing edge impulse with control input

·         Tripping delay with control input

·         Leading edge impulse, voltage controlled

·         Flasher pause first

In addition to these 7 functions the multi-function timer relays from Schrack Technik offer 7 time ranges with durations between 50 ms and 100 h.

Schrack Technik Timer Relays

Multiple functions, 1 CO ZR5MF011

Multiple functions, 2 COs ZR5MF025

 

Plug-In Multi-Function Timer Relays

They include 2 COs and can be plugged into the Schrack Technik 11 pole MT socket. The component width is 38 mm with a 45 mm standard front dimension

Multiple functions, plug-in design, 2 COs ZR4MF025-A

 

Flasher Relays

A timer relay is used to set the frequency of the flasher unit. The following relays of this type are available:

Single Function Relays

On the single function relays the flasher can be set asymmetrically. The Series 5 DIN rail mounted relay comprises 1 CO and has a component width of 17.5 mm.

Timer relay, flasher asymmetric, 1CO ZR5B0011

Dual Time Multi-Function Relays

This type of DIN rail mounted relay includes a timer and provides a dual time multi-functionality with 7 time ranges available. The dual time multi-function relay from Schrack Technik comprises 2 COs and has a component width of 35mm.

The dual time multi-function relay from Schrack Technik offers the following functions:

  • Cyclic pause first
  • Cyclic impulse first
  • Tripping and release delay with control contact
  • Tripping delay and leading edge impulse voltage controlled
  • Tripping delay and leading edge impulse with control contact
  • Tripping delay and trailing edge impulse with control contact

 

Dual time flasher relay, 2 COs ZR5B0025

Plug-in dual time multi-function relay for 11 pole MT socket (YMR78700)

Dual time flasher relay, plug-in design, ZR4B0025-A

Multi-function timer relay, Series 6, ZR6MF052

-          16 functions

-          16 time ranges

Star-Delta Relays

The star-delta relay from Schrack Technik has 2 COs and one star-delta starting.

Series 5 is in DIN rail mount design with a component width of 35 mm and a wide input voltage range. ZR6MF052

Series 6 is in industrial type design with a component width of 22.5 mm.  ZR6SD052

 

Emergency Lighting Testers

An emergency lighting tester's timer function ist used to test emergency lighting, hence the name. This type of timer relay includes a test switch, 1 CO and has a component width of 17.5 mm. ZR5RT011