The Omron NX-OC4633 Machine Automation Controller Relay Output Unit provides 8 normally open relay outputs for switching electrical loads in industrial machine-control systems. Each relay output supports loads rated at 250 VAC at 2 A and 24 VDC at 2 A, enabling control of connected actuators and electrical devices. The unit uses Free-Run refreshing and provides a 15 ms ON/OFF response for consistent relay switching. It operates from a 24 VDC supply with maximum power consumption of 5.80 W. The NX-OC4633 provides multi-channel relay switching within the relay output PLC range and supports modular machine-control architectures based on Omron industrial automation.
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.)
