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CJ1W-OC201

Omron CJ1W-OC201 Relay Output Unit 8-Point 250VAC

SKU: CJ1W-OC201

USD 55.00

Omron CJ1W-OC201 is an 8-point relay output unit for CJ series PLCs, providing isolated relay contacts for AC/DC switching.

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Product Overview

The Omron CJ1W-OC201 is an 8-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 8 independent SPDT (Single Pole Double Throw) 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-OC201 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 8 output points. With mechanical relay switching, this module provides bounce-free switching for sensitive loads and is not affected by voltage spikes or noise that can damage solid-state outputs. The CJ1W-OC201 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-OC201
  • Series: CJ1W
  • Voltage: 250VAC
  • I/O: 8 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
  • Reliable relay switching
  • Hot-swappable for maintenance
  • Long mechanical life
  • Proven Omron relay technology
  • Flexible wiring options

Technical Specifications

Model CJ1W-OC201
Series CJ1W
Type Relay Output Unit
Output Points 8 points
Contact Configuration SPST-NO (Form A)
Contact Rating 5A at 250VAC, 5A at 30VDC
Max Switching Voltage 250VAC, 125VDC
Max Switching Current 5A per point
Max Switching Power 1250VA, 150W
Operating Time 10ms max
Release Time 5ms max
Mechanical Life 20 million operations
Electrical Life 100,000 operations (at rated load)
Common 8 points/common
Connection Removable terminal block
Current Consumption 100mA at 5VDC
Mounting CJ series backplane

FAQ for CJ1W-OC201

What's the advantage of relay output vs transistor?
Relay output: isolated contacts (can switch AC or DC), higher current capacity (5A vs 0.5-2A), no polarity. Transistor output: faster response, longer life, silent operation. Choose based on load type and switching frequency.
What's the expected relay life?
Mechanical: 20 million operations (no load). Electrical: 100,000 operations at rated load (5A resistive). For inductive loads (contactors, solenoids), expect 50,000 operations. Add snubber for inductive loads to extend life.
Can I use relay output for motor control?
For small motors under 5A, yes. For larger motors, use relay output to control contactor coil. Motor loads are highly inductive - add RC snubber or varistor across relay contacts.
What's the minimum switching load?
Minimum: 10mW at 5VDC (logic level). For reliable low-current switching, consider gold-plated contact relays. Standard relay contacts may oxidize at very low currents.

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