EATON ESR5-NV3-30 Safety Relay

Description

EATON ESR5-NV3-30 Safety Relay

Product Dimensions：

The Eaton ESR5-NV3-30 is a high-performance Safety Relay specifically designed for monitoring emergency stop circuits and safety guards. It belongs to the ESR5 series, which provides reliable protection for both personnel and machinery by ensuring that a dangerous movement is stopped immediately and safely upon a trigger event.

Product Detailed Description

The ESR5-NV3-30 is an electronic safety relay that monitors safety-related signals from devices like E-stop buttons, light curtains, or safety switches. It features a redundant internal architecture and self-monitoring capabilities to detect faults within the safety circuit. The “NV3” designation typically indicates it is a versatile unit capable of monitoring various safety components with specific timing and output configurations.

Technical Parameters

Product Advantages

• High Safety Standards: Certified for the highest safety requirements (PLe and SIL 3), ensuring maximum risk reduction in industrial environments.
• Compact Design: The slim 22.5 mm width saves significant space in the control cabinet, allowing for high-density installation of safety components.
• Diagnostic Feedback: Equipped with LED status indicators on the front panel for “Power,” “Input,” and “Fault,” allowing for rapid troubleshooting and status checks.
• Redundancy: Dual-channel monitoring ensures that even if one internal component fails, the safety function remains active, preventing a “fail-to-danger” scenario.
• Global Approvals: Meets international standards including UL, CSA, and CE, making it suitable for export-oriented machinery.

Important Considerations (Precautions)

• Wiring Verification: Always ensure that the dual-channel wiring is used if Category 4/PLe is required. Using a single channel lowers the safety rating of the entire system.
• Feedback Loop: When using external contactors to switch high loads, the “feedback loop” (External Device Monitoring – EDM) must be wired to the reset circuit to ensure the contactors have actually opened.
• Environmental Limits: Ensure the ambient temperature stays within the specified range (typically -25°C to +55°C). Overheating can lead to premature aging of the internal electromechanical relays.
• Fuse Protection: Protect the safety contacts with appropriate fuses to prevent welding of the contacts in the event of an external short circuit.

Product Applications

The ESR5-NV3-30 is used across various automated sectors to manage safety functions:

• Emergency Stop Monitoring: The most common application, providing safe disconnection of power when an E-stop button is pressed.
• Safety Guard Monitoring: Ensuring that dangerous machinery cannot start or will stop if a safety door or gate is opened.
• Light Curtains: Interfacing with optoelectronic protective devices to stop robotic arms or presses when a person enters a restricted zone.
• Two-Hand Controls: Used in applications where the operator must use both hands to start a machine cycle, ensuring they are clear of the danger zone.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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