The J7KNA-AR-31 24D: AC contact ratings step down with voltage: 3 A at 220–240 V, 2 A at 380–415 V, 1.6 A at 440 V, 1.2 A at 500 V, and 0.6 A at 660–690 V. That 10 A headline number is the thermal current; the real switching limit is the voltage-specific row. For a 230 V control circuit you get 3 A; for a 400 V pilot circuit you're down to 2 A. DC ratings are lower still — 2 A at 60 V, 0.4 A at 110 V, 0.1 A at 220 V — because DC arcs don't self-extinguish at zero-cross. If you're switching a DC solenoid or brake coil, size for the DC row, not the AC one.

Omron J7KNA-AR-31 24D Relay Socket, 10 A, 24V DC
Omron J7KNA-AR series, J7KNA-AR-31 24D relay socket, 10 A current rating, 24V DC coil, mature lifecycle stage.
Specifications
| Parameter | Value |
|---|---|
| Series | J7KNA-AR |
| Coil voltage | 24V DC |
| Current rating | 10 A |
| Contact rating | 0.60 A @ 660 to 690V1.20 A @ 500V1.60 A @ 440V2.00 A @ 380 to 415V3 A @ 220 to 240V |
| Push-To-Test button | No Test Button |
Product details
Frequently asked questions
What is the coil voltage for J7KNA-AR-31 24D?
The coil voltage is 24V DC.
Where can I buy J7KNA-AR-31 24D?
This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time.
What is the current rating of J7KNA-AR-31 24D?
The thermal current rating (Ith) is 10 A. The actual switching capacity depends on voltage: 3 A at 220–240V AC, 2 A at 380–415V AC, 2 A at 60V DC, and lower ratings at higher voltages.