CMRD2455 Crydom - Relays

CMRD2455 Description

CMRD2455 is a 240 V, 55 A solid state relay made by Crydom. Solid state relays like this switch heaters, motors, lamps and other loads quietly and without contact wear.

USComponent has been supplying power semiconductors since 2001, including discontinued and hard-to-find part numbers. Send us an RFQ for the CMRD2455 and we will reply with price, condition and lead time. Please check the manufacturer's datasheet to confirm ratings, package and pin-out before you order.

Summary of Features

Target Applications

Crydom CMRD2455 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 CMRD2455 is a 55 A DIN-rail solid state relay with integral heat sink, CMR24 Series (45 mm wide, 24-280 VAC), SCR output, DC control (3-32 VDC), zero voltage turn-on, LED input indicator. Source: Crydom CMR24 Series datasheet. Values at 25°C unless noted.

Parameter	Value
Output
Operating voltage (47-63 Hz)	24-280 Vrms
Maximum load current	55 Arms
Transient overvoltage	600 Vpk
Minimum load current	0.25 Arms
Maximum surge current	1000 Apk (16.6 ms)
Maximum on-state voltage drop @ rated current	1.6 Vpk
Maximum off-state leakage @ rated voltage	10 mArms
Minimum off-state dv/dt	500 V/µs
Thermal resistance junction to case (Rjc)	0.31 °C/W
Maximum I²t for fusing	4150 A²s (8.3 ms)
Switching type	zero voltage turn-on
Input
Control voltage range	3-32 VDC
Maximum turn-on / minimum turn-off voltage	4.0 VDC / 1.0 VDC
Typical input current	17 mA @ 5 VDC (max 30 mA)
Maximum turn-on / turn-off time	1/2 cycle / 1/2 cycle
General
Dielectric strength, input/output/base	4000 Vrms
Ambient operating temperature	-40 to 80°C
Weight (typical)	16.8 oz (476 g)

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