Omron CJ1W-OC201 Relay Output Unit - 8-Point Industrial PLC Module

Comprehensive Product Overview

The Omron CJ1W-OC201 represents a premium-grade relay output unit specifically engineered for integration with Omron's CJ Series programmable logic controllers. This industrial automation component delivers exceptional performance in demanding control applications across manufacturing, process control, and machinery automation sectors. Designed with precision engineering, the CJ1W-OC201 module provides eight independent relay outputs with robust switching capabilities, making it an ideal solution for controlling various industrial loads in harsh operating environments. Its compact form factor (31 × 90 × 65 mm) and DIN rail mounting compatibility ensure seamless integration into existing control panels while optimizing space utilization.

Enhanced Features and Operational Benefits

• Advanced Relay Technology: Eight independent output channels, each featuring dual Form A (SPST-NO) contacts with silver alloy construction for superior conductivity and extended service life
• High-Capacity Switching: Rated for 2A at 250VAC or 24VDC (resistive load) with a maximum switching power of 500VA/60W, accommodating diverse industrial load requirements
• Precision Timing: Consistent switching performance with maximum response times of 15ms (ON→OFF) and 10ms (OFF→ON), ensuring precise control sequencing
• Industrial Durability: Engineered for continuous operation in temperatures ranging from 0°C to 55°C with 10-90% non-condensing humidity tolerance
• Enhanced Electrical Isolation: Comprehensive photocoupler isolation (1,500VAC for 1 minute) between internal logic circuits and output contacts for improved noise immunity and system safety
• Optimized Power Efficiency: Low 0.9W power consumption from the 5VDC internal supply reduces overall system energy requirements
• Mechanical Reliability: Vibration resistant (10-57Hz, 0.075mm amplitude) and shock-proof (147m/s², 15G) construction for stable operation in demanding industrial environments
• Long-Term Performance: Minimum 100,000 mechanical operations and 30,000 electrical operations (at rated load) for reduced maintenance intervals
• Standardized Connectivity: Screw terminal block design (removable) with clearly labeled connections for simplified wiring and maintenance
• Manufacturer Warranty: Backed by Omron's comprehensive 1-year warranty against manufacturing defects

Industrial Application Scenarios

The CJ1W-OC201 relay output module delivers reliable performance in numerous industrial automation contexts:

• Manufacturing Automation: Precise control of pneumatic actuators, hydraulic valves, and servo mechanisms in CNC machines and robotic workcells
• Process Control Systems: Switching applications for chemical dosing pumps, heat trace circuits, and instrumentation loops in continuous process industries
• Packaging Machinery: Sequential control of sealing elements, product diverters, and conveyor synchronization in high-speed packaging lines
• Material Transport: Motor starter control for conveyor belts, lift mechanisms, and automated storage/retrieval systems
• Energy Management: Load switching for HVAC components, lighting circuits, and backup power systems in commercial facilities
• Test and Measurement: Automated switching of test circuits and instrumentation in quality control and product validation systems
• Water Treatment: Control of chemical feed pumps, filter backwash sequences, and valve actuation in purification systems

Complete Technical Specifications

Technical Parameter	Detailed Specification
Manufacturer Part Number	CJ1W-OC201 (Genuine Omron Factory Automation Component)
Output Configuration	8 independent relay channels, each with 2 Form A (SPST-NO) contacts
Contact Material	Silver alloy contacts with anti-welding design
Maximum Switching Voltage	250VAC (50/60Hz) or 24VDC
Rated Load Current	2A resistive (250VAC/24VDC), 0.5A inductive (250VAC)
Minimum Load	10mA at 5VDC (reference value)
Contact Resistance	≤100mΩ initial (at 1A 5VDC measurement)
Mechanical Durability	≥100,000 operations (no load)
Electrical Durability	≥30,000 operations (rated resistive load)
Insulation Resistance	≥100MΩ (at 500VDC) between contacts and coil
Dielectric Strength	1,500VAC for 1 minute (between contacts and coil)
Surge Immunity	1kV (1.2×50μs) between contacts and coil
Internal Current Consumption	0.9W (from 5VDC internal supply)
Mounting Configuration	DIN rail mount (35mm) or direct panel mount
Terminal Type	Removable screw terminal block (18-point)
Wire Size	0.3-2.5mm² (AWG 22-14) solid or stranded
Tightening Torque	0.5N·m max for terminal screws
Weight	200g ±5% (excluding packaging)
Compliance Standards	CE Marked, RoHS Compliant, UL Recognized (File E79924)
Warranty Coverage	12 months from date of purchase (Omron standard warranty)

System Integration and Compatibility

The CJ1W-OC201 module is designed for direct integration with Omron CJ1 series programmable controllers, including CJ1G/H/M/CPU variants. The unit occupies one slot in the CJ1 rack and communicates via the backplane bus, requiring no additional configuration software. The module's LED indicators provide per-channel status monitoring (ON/OFF state) for simplified troubleshooting. Compatible with Omron's extensive range of CJ-series digital and analog I/O modules, the CJ1W-OC201 enables flexible system expansion to meet evolving automation requirements.

Safety and Regulatory Information

This industrial control component complies with international safety standards including IEC 61010-1 for measurement, control, and laboratory use. The design incorporates reinforced insulation between logic circuits and relay outputs, with clearance and creepage distances exceeding minimum requirements for industrial control equipment. When installing, always adhere to NEC (National Electrical Code) or applicable local regulations for control panel wiring and overcurrent protection. The CJ1W-OC201 is not rated for use in safety-critical applications requiring SIL or PL ratings.