Eaton Safety Relay ESR5-NO-31-24VDC 24 V DC 3 NO + 1 NC Screw Terminals DIN Rail

The Eaton ESR5-NO-31-24VDC is a compact safety relay from the ESR5 series, designed for reliable monitoring of safety functions such as emergency stop, safety gates, and light curtains. With 3 normally open (NO) safety contacts and 1 normally closed (NC) auxiliary contact, it provides configurable automatic or manual reset and meets the highest safety standards up to PLe / Cat. 4 and SIL CL 3. The device operates at 24 V DC and features screw terminals for easy wiring, making it ideal for integration into safety circuits on DIN rails.

Advantages

High safety integrity with PLe / Cat. 4 and SIL CL 3 certification ensures maximum protection for personnel and machinery. The configurable reset function (automatic or manual) offers flexibility for different application requirements. Compact 22.5 mm width saves space in control cabinets, while screw terminals simplify installation and maintenance.

Suitable for

• Emergency stop circuits
• Safety gate monitoring
• Light curtain interfacing
• Industrial automation safety systems

Key specifications

• Product Type: Safety Relay
• Series: ESR5
• Operating Voltage: 24 V DC
• Safety Contacts (NO): 3
• Auxiliary Contacts (NC): 1
• Reset Function: Automatic/Manual (Configurable)
• Safety Category: PLe, Cat. 4 (EN ISO 13849-1)
• Safety Integrity Level: SIL CL 3 (IEC/EN 62061)
• Terminal Type: Screw Terminals
• Mounting Type: DIN Rail
• Width: 22.5 mm
• Height: 99 mm
• Depth: 114.5 mm
• Protection Degree (Housing): IP40
• Protection Degree (Terminals): IP20
• Ambient Operating Temperature: -25 to +60 °C
• Power Consumption: 2.5 W
• Monitoring Function: Emergency Stop, Safety Gate, Light Curtain

Recommendations

For comprehensive safety solutions, pair this relay with compatible Eaton safety switches and light curtains. Ensure proper wiring according to the manual to achieve the required safety level.