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CJ1W-OC211

Omron CJ1W-OC211 Relay Output Unit 16-Point 250VAC

SKU: CJ1W-OC211

USD 43.00

Omron CJ1W-OC211 is a 16-point relay output unit for CJ series PLCs, providing high-density relay output for AC/DC switching.

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Product Overview

The Omron CJ1W-OC211 is a 16-point relay output module designed for CJ1 series programmable logic controllers, providing versatile output switching for both AC and DC loads in industrial automation applications. This module features 16 independent SPST (Single Pole Single Throw) normally-open relay contacts, each capable of switching AC loads up to 250VAC or DC loads up to 30VDC. The relay output configuration provides complete isolation between the PLC logic and field loads, making this module ideal for switching loads that require galvanic separation or have different voltage levels from the PLC supply. Each relay contact is rated for 2A, suitable for driving small to medium loads including contactors, solenoids, indicators, and pilot lights. The CJ1W-OC211 includes individual LED status indicators for each output point, enabling quick visual verification of relay states during commissioning, troubleshooting, and operation. The module connects to field wiring through two 20-pin connectors, providing organized and secure connections for all 16 output points. With mechanical relay switching, this module provides bounce-free switching for sensitive loads. The CJ1W-OC211 is hot-swappable, allowing module replacement without powering down the PLC system. Applications include motor starter control, solenoid valve switching, indicator and signal switching, heating element control, and general purpose AC/DC switching in industrial control systems.

  • SKU: CJ1W-OC211
  • Series: CJ1W
  • I/O: 16 I/O

Best-Fit Applications

  • Motor starter control
  • Solenoid valve switching
  • Indicator light driving
  • Heating element control
  • Contactor actuation
  • Signal switching
  • Process control outputs
  • General industrial switching

Buying Checklist

  • AC and DC load switching
  • Complete galvanic isolation
  • Individual status LEDs for diagnostics
  • High point count in single module
  • Reliable relay switching
  • Hot-swappable for maintenance
  • Long mechanical life
  • Proven Omron relay technology

Technical Specifications

Model CJ1W-OC211
Series CJ1W
Type Relay Output Unit
Output Points 16 points
Contact Configuration SPST-NO
Contact Rating 5A at 250VAC
Mechanical Life 20 million operations
Electrical Life 100,000 operations
Common 16 points/common
Connection Removable terminal block
Current Consumption 120mA at 5VDC
Mounting CJ series backplane

FAQ for CJ1W-OC211

What's the difference between OC201 and OC211?
OC201: 8 points, 5A per point. OC211: 16 points, 2A per point (higher density, lower current). Choose OC201 for high-current loads, OC211 for more outputs at moderate current.
What's the maximum total current?
8A per unit maximum (all 16 outputs combined). If all outputs ON, each limited to 0.5A average. Plan load distribution to stay within unit rating.
Can I switch AC and DC loads on same unit?
Yes, relay contacts are isolated. You can have AC loads on some outputs, DC loads on others. Ensure all loads share same common voltage if connected to same common terminal.
How do I extend relay life for inductive loads?
Add RC snubber across contacts for AC inductive loads. Add flyback diode across DC inductive loads. This suppresses arcing, extending contact life 5-10x.

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