The Omron NX-OC2633 Machine Automation Controller is a durable relay-based Communications Interface Unit offering 2 output points, designed for switching 250 VAC / 2 A and 24 VDC / 2 A loads with high reliability. It uses a Free-Run refreshing method and provides a consistent 15 ms ON/OFF response, making it suitable for electrical load isolation, contact switching, and panel-level safety control. Powered by 24 VDC with 5.80 W max consumption, it ensures dependable relay operation in industrial environments. Manufactured by Omron, part of the Omron Programmable Logic Controller (PLC) series under the Omron NX Series.
250 VAC/2 A (cosφ=1), 250 VAC/ 2 A (cosφ=0.4), 24 VDC/2 A, 4 A/Unit
I/O refreshing method
Free-Run refreshing
ON/OFF response time
15 ms max./ 15 ms max.
Dimensions (mm)
72 × 100 × 90 mm (W×H×D)
Power supply voltage
24 VDC (20.4 to 28.8 VDC)
Unit power consumption
5.80 W max.
Shock resistance
Conforms to IEC 60068-2-27. 147 m/s2, 3 times in X, Y, and Z directions
Vibration resistance
Conforms to IEC 60068-2-6. 5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz, acceleration of 9.8 m/s2, 100 min each in X, Y, and Z directions (10 sweeps of 10 min each = 100 min total).
Noise immunity
2 kV on power supply line (Conforms to IEC 61000-4-4.)
