A2490-10 Crydom - Relays
A2490-10 Description
The A2490-10 from Crydom is a solid state relay. 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 A2490-10, send us a request for quote. Please confirm the specifications against the manufacturer's datasheet before purchase.
Summary of Features
Crydom A2490-10 is a 90 A panel-mount solid state relay, Series 1 (24-280 VAC), SCR output, AC control (90-280 VAC), instantaneous (random) turn-on.
Target Applications
Crydom A2490-10 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 A2490-10 is a 90 A panel-mount solid state relay, Series 1 (24-280 VAC), SCR output, AC control (90-280 VAC), instantaneous (random) turn-on. Source: Crydom Series 1 datasheet (FDE-07-01 Rev. A). Values at 25°C unless noted.
| Parameter | Value |
|---|---|
| Output | |
| Operating voltage (47-440 Hz) | 24-280 Vrms |
| Maximum load current | 90 Arms |
| Transient overvoltage | 600 Vpk |
| Minimum load current | 150 mArms |
| Maximum 1-cycle surge current (50/60 Hz) | 1145/1200 Apk |
| Maximum on-state voltage drop @ rated current | 1.15 Vrms |
| Maximum off-state leakage @ rated voltage | 1 mArms |
| Minimum off-state dv/dt | 500 V/µs |
| Maximum I²t for fusing, 1/2 cycle (50/60 Hz) | 6560/5976 A²s |
| Thermal resistance junction to case (Rjc) | 0.27 °C/W |
| Switching type | instantaneous (random) turn-on |
| Input | |
| Control voltage range | 90-280 Vrms |
| Minimum turn-on voltage | 90 Vrms |
| Must turn-off voltage | 10 Vrms |
| Input current | 5-10 mA |
| Maximum turn-on / turn-off time | 20 ms / 30 ms |
| General | |
| Dielectric strength, input/output/base | 4000 Vrms |
| Ambient operating temperature | -40 to 80°C |
| Weight (typical) | 2.6 oz (74.9 g) |
Technical document (PDF) | Request a quote for A2490-10 (reply within 24 hours)

