Product Introduction
The Honeywell 10310/2/1 EARTH LEAKAGE DETECTOR (ELD) is a critical safety module designed to monitor earth leakage in 24 VDC industrial systems. This device continuously checks for unwanted ground connections that could lead to equipment damage or personnel risk. With a manually operated self-test and earth connection monitor, the 10310/2/1 provides reliable detection in automation environments.
Technical Specifications Breakdown
The 10310/2/1 operates on a 24 V DC supply (max. 30 V DC) with a supply current of max. 60 mA. It offers two input ranges: Rst24 input voltage 18–70 V DC (1.1 mA at 24 V) and Rst110 input voltage 40–130 V DC (2.5 mA at 110 V). The earth voltage is -12 V DC with no fault, and the earth fault threshold spans -30 to +125 V DC. Maximum earth current is 5.5 mA (±1 mA) and 25.0 mA (±5 mA). Output contacts handle up to 115 V DC and 2 A, with relay contacts rated for 5 A max and 250 V DC/AC switching.
Real-World Applications
This Honeywell 10310/2/1 EARTH LEAKAGE DETECTOR is ideal for monitoring 24 V DC, 48 V DC, 60 V DC, or 110 V DC systems in control cabinets, process automation, and power distribution. The adjustable connection frequency (continuous, 1 Hz, or 0.25 Hz) accommodates solenoids or relays that could stay energized by negative earth voltage. Use the 1/4 Hz setting with a current clamp (e.g., DCM300E) to locate earth faults quickly, reducing downtime.
Installation & Setup Guidance
Connect the 10310/2/1 module to your 24 V DC system using the designated Rst24 or Rst110 input terminals. Switch 1 selects the connection mode: set to 'DC' for continuous monitoring, '1 Hz' for intermittent connection (useful for solenoids), or '1/4 Hz' for fault location. Switch 2 activates the self-test when placed in 'TEST' position. The green 'MODE' LED flashes at the selected frequency. For 110 V DC systems, use the Rst110 input. Ensure the earth connection is secure; the module connects earth level to -12 V DC.
Selection Guide & Purchasing Advice
Before ordering the Honeywell 10310/2/1, verify your system voltage (24 V DC or 110 V DC) and confirm the required input range. This module comes with key coding: module code holes A5, A11; rack code large pins A5, A11. For technical support and genuine Honeywell modules, contact UBEST Automation. We stock this EARTH LEAKAGE DETECTOR and offer fast worldwide shipping.