A2 is a relay from CIT Relay that has a large current capacity, is small and light, and is suitable for automobile and lamp accessories.
The A2 series relay from CIT is a small, lightweight device (26 × 26 × 24.5 mm, 31 g) designed for automobile and lamp accessory applications. It provides a large switching capacity up to 40 A and can handle a maximum switching voltage of 75 VDC and power of 630 W. The relay is available with PCB pins or quick‑connect terminals and offers several sealing and mounting options.
Technical data include contact resistance under 30 mΩ, coil voltages of 6 VDC, 12 VDC or 24 VDC with corresponding coil powers of 1.6 W or 1.9 W, electrical life of 100 k cycles, mechanical life of 10 M cycles, and an operating temperature range of –40 °C to +125 °C. Ordering information lists variants such as A2F, A2M, and A2S with different mounting options.
| Switching capacity | up to 40 A |
|---|---|
| Maximum switching voltage | 75 VDC |
| Maximum switching power | 630 W |
| Contact resistance | < 30 mΩ (initial) |
| Coil voltage options | 6 VDC, 12 VDC, 24 VDC |
| Coil power | 1.6 W / 1.9 W |
| Electrical life | 100 k cycles (typical) |
| Mechanical life | 10 M cycles (typical) |
| Operating temperature | -40 °C to +125 °C |
| Weight | 31 g |
| Dimensions | 26 × 26 × 24.5 mm |
The A2 relay can handle a maximum switching current of 40 A at 14 VDC.
Coil voltages of 6 VDC, 12 VDC, and 24 VDC are offered.
The relay operates from –40 °C up to +125 °C.
The relay weighs 31 grams.