D2440-C Crydom - Relays

D2440-C Description

The D2440-C is a solid state relay made by Crydom. It is widely used for heater control, motor switching, lighting and process equipment where mechanical contacts would wear out.

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Summary of Features

Target Applications

Crydom D2440-C is used for switching AC loads in industrial heating and temperature control (ovens, furnaces, plastic molding and extrusion machines), packaging and food processing equipment, lighting control, HVAC systems and industrial automation.

Key Specifications

Crydom D2440-C is a Form C (break-before-make) solid state relay with AC output: two SSRs and timing logic in one package, DC control 4.7-29 VDC, LED indicators, internal snubber. Source: Crydom Form C Solid State Relay datasheet (1995, scanned). Values at 25°C unless noted.

Parameter	Value
Output (AC)
Load current range	0.2-40 Arms
Maximum surge current (16.6 ms)	625 Apk
Maximum off-state leakage @ rated voltage	10 mArms
Maximum voltage drop (100% on)	1.6 Vpk
Transfer time (break-before-make)	8-16 ms
Input
Control voltage range	4.7-29 VDC
Must operate / release voltage	4.7 / 1.0 VDC
Nominal input impedance	2.7 kOhm
Constant supply input range	4.7-29 VDC

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