CMRD2445 Crydom - Relays

CMRD2445 Description

CMRD2445 is a 240 V, 45 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 sourced power semiconductors for maintenance teams and OEMs since 2001. For price and availability of the CMRD2445, send us a request for quote. Please confirm the specifications against the manufacturer's datasheet before purchase.

Summary of Features

Target Applications

Crydom CMRD2445 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 CMRD2445 is a 45 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	45 Arms
Transient overvoltage	600 Vpk
Minimum load current	0.15 Arms
Maximum surge current	625 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)	0.63 °C/W
Maximum I²t for fusing	1620 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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