H12D4840D-10 Crydom - Relays

H12D4840D-10 Description

The Crydom H12D4840D-10 is a solid state relay, rated for 480 V and 40 A. 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 H12D4840D-10 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 H12D4840D-10 is a dual-output panel-mount solid state relay (DUAL Series, two independently controlled channels), 40 A per channel @ 48-530 VAC, SCR output, DC control 4-15 VDC, random turn-on. Source: Crydom DUAL Series datasheet. Values at 25°C unless noted.

Parameter	Value
Output (per channel)
Operating voltage (47-63 Hz)	48-530 Vrms
Maximum load current	40 Arms
Minimum load current	0.15 Arms
Transient overvoltage	1200 Vpk
Maximum off-state leakage @ rated voltage	10 mArms
Minimum off-state dv/dt	500 V/µs
Maximum 1 cycle surge current (50/60 Hz)	597/625 Apk
Maximum on-state voltage drop @ rated current	1.6 Vpk
Thermal resistance junction to case (Rjc)	0.63 °C/W
Maximum I²t for fusing (1/2 cycle, 50/60 Hz)	1779/1621 A²s
Switching type	random turn-on
Input
Control voltage range	4-15 VDC
Minimum turn-on / turn-off voltage	4.0 VDC / 1.0 VDC
Typical input current	13 mA @ 5 VDC
Nominal input impedance	240 Ohm
Maximum turn-on / turn-off time	1/2 cycle / 1/2 cycle
General
Dielectric strength, input/output	4000 Vrms
Ambient operating temperature	-40 to 80°C
Weight (typical)	3.0 oz (86.5 g)

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