CMD2490 Crydom - Relays

CMD2490 Description

Crydom makes the CMD2490, a 240 V, 90 A solid state relay. Typical uses include temperature control of heaters, packaging and plastics machinery, and general industrial load switching.

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Summary of Features

Target Applications

Crydom CMD2490 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 CMD2490 is a 90 A panel-mount solid state relay, CMD/CMA24 Series (24-280 VAC), SCR output, DC control (3-32 VDC), zero-cross turn-on, LED input indicator, IP20 touch-safe housing with box-clamp terminals. Source: Crydom CMD/CMA24 Series datasheet (Rev. 113011). Values at 25°C unless noted.

Parameter	Value
Output
Operating voltage (47-63 Hz)	24-280 Vrms
Maximum load current	90 Arms
Transient overvoltage	600 Vpk
Minimum load current	0.25 Arms
Maximum 1 cycle surge current (50/60 Hz)	1145/1200 Apk
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)	0.28 °C/W
Maximum I²t for fusing (1/2 cycle, 50/60 Hz)	6560/5976 A²s
Switching type	zero-cross turn-on
Input
Control voltage range	3-32 VDC
Minimum turn-on / turn-off voltage	3.0 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)	3.0 oz (86.5 g)

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