Delay On Make Timer Series - Delay On Make Timer

Series: Delay On Make Timer
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The ERDM Series are a combination of digital electronics and a reliable electromechanical relay. These devices offer a DPDT relay output for relay logic circuits, and isolation of input to output voltages. Cost effective for OEM applications, such as random starting, sequencing ON, switch de-bouncing, anti-short cycling, and other common delay-on-make applications.


Operation (Delay-on-Make)
Upon application of input voltage, the time delay begins. The output is de-energized before and during the time delay. At the end of the time delay, the output energizes and remains energized until input voltage is removed.
Reset: Removing input voltage resets the time delay and output.

Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)		Output
Form		Storage Temperature (F/C)Time Delay RangeDimensionsStockSamplesCompare
ERDM12312 V dcDPDT-40° to 85°C (-40° to 185°F)0.3 - 30 s adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM12612 V dcDPDT-40° to 85°C (-40° to 185°F)0.6 - 60 s adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM12812 V dcDPDT-40° to 85°C (-40° to 185°F)0.1 - 10 m adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM22224 V acDPDT-40° to 85°C (-40° to 185°F)0.1 - 5 s adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM4130S120 V acDPDT-40° to 85°C (-40° to 185°F)30 s fixed3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM4210120 V acDPDT-40° to 85°C (-40° to 185°F)1 - 100 m adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM422120 V acDPDT-40° to 85°C (-40° to 185°F)0.1 - 5 s adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM423120 V acDPDT-40° to 85°C (-40° to 185°F)0.1 - 10 s adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)
ERDM425120 V acDPDT-40° to 85°C (-40° to 185°F)0.3 - 30 s adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM427120 V acDPDT-40° to 85°C (-40° to 185°F)0.1s - 500 m in 11 adjustable ranges or 0.1s - 1000 m fixed3.5 H x 2.5 W in. (88.9 x 63.5 mm)CheckOrder
ERDM429120 V acDPDT-40° to 85°C (-40° to 185°F)0.2 - 15 m adjustable3.5 H x 2.5 W in. (88.9 x 63.5 mm)
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