Honeywell 10310/2/1 Earth Leakage Detector

The Honeywell 10310/2/1, also cataloged under the part number 51309241-175, is an Earth Leakage Detector (ELD) module for monitoring earth leakage conditions in Honeywell Fail Safe Control (FSC) systems. It supports 24 VDC applications and provides a 1 A output rating. The module includes a manual self-test and earth connection monitoring function for checking the electrical monitoring circuit.

Hardware Specifications

Earth Leakage Monitoring and Diagnostics

The 10310/2/1 monitors earth leakage conditions in DC electrical distribution circuits. Its earth connection monitoring function checks the designated ground connection, while the manual self-test supports functional verification of the detector.

The supplied documentation identifies 24 VDC operation and a 1 A rating. Although 48 VDC, 60 VDC, and 110 VDC monitoring are also listed, the applicable configuration and voltage-specific requirements should be verified against the manufacturer's hardware documentation before installation.

Frequently Asked Questions

Q: Which control systems support the Honeywell 10310/2/1?

A: The supplied information identifies Honeywell FSC (Fail Safe Control) and associated safety systems as compatible platforms. Confirm the cabinet and slot requirements against the applicable system hardware documentation.

Q: Does the module support self-testing?

A: Yes. The supplied description specifies a manually operated self-test and an earth connection monitoring switch.

Q: What electrical parameters must be verified before installation?

A: Verify the DC supply voltage, monitored circuit voltage range, 1 A output rating, earth connection requirements, and cabinet wiring configuration against the manufacturer's documentation.

Field Installation Guidelines

• Confirm the module identification and part number before mounting it in the FSC cabinet.
• Verify cabinet slot compatibility and the required electrical connections using the applicable Honeywell wiring diagrams.
• Isolate the relevant power source before wiring or removing the module, following site electrical safety procedures.
• Route DC power and earth leakage monitoring conductors according to the system wiring specification.
• Terminate protective earth and monitoring connections at their designated terminals. Do not substitute signal common for protective earth unless explicitly permitted by the manufacturer's documentation.
• Keep low-level monitoring wiring separated from high-current conductors and sources of electrical interference where required by the cabinet design.
• Verify supply polarity, circuit voltage, earth continuity, and field wiring before energizing the system.
• Perform the specified self-test and verify the earth connection monitoring function during commissioning.
• Record the module identification and test results in the maintenance documentation.