Original Ampcontrol EL500S series 60mm inner diameter earth leakage toroid sensor for ELD‑V2 / ELM‑V2 mining protection relay.

Product Overview

101658 (EL500S60 / EL500S‑1‑60ID) is 60mm inner‑diameter earth‑leakage toroid sensor manufactured by Australian Ampcontrol. It serves as core sensing component for ELD V2 and ELM V2 earth‑leakage protection relays, detects residual earth‑fault current in power‑supply circuits and converts leakage current into low‑level signal for protection relay processing. Complies with AS/NZS 2081:2011 mining safety standard, shielded magnetic‑core structure resists strong electromagnetic interference underground. Rugged encapsulated housing adapts to vibration, dust and humidity in coal‑mine underground and heavy‑industry sites. Widely used as maintenance spare part for underground mining substations, conveyor power systems and earth‑fault‑limited distribution systems.

Key Features

• 60 mm inner‑diameter aperture, allows multi‑core power cables pass‑through for residual‑current measurement
• High‑permeability shielded magnetic core, provides precise leakage‑current detection under heavy EMI environment
• 100:1 transformation ratio, matched for Ampcontrol ELD V2 / ELM V2 protection relays
• Fully encapsulated industrial housing, vibration‑proof, dust‑proof and moisture‑resistant for underground mining condition
• Two‑terminal signal output, simple wiring for connection to earth‑leakage relay
• Complies with AS/NZS 2081:2011 Australian mining electrical safety specification

• Metal base bracket for panel mounting, convenient field installation and fixation

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Technical Specifications

• Brand: Ampcontrol
• Model: 101658, EL500S60, EL500S‑1‑60ID
• Module Type: Earth Leakage Toroid Current Sensor
• Inner Aperture: 60 mm
• Transformation Ratio: 100:1
• Standard: AS/NZS 2081:2011
• Mounting: Panel‑mount with metal bracket
• Operating Temp: ‑25℃ ~ +70℃
• Storage Temp: ‑40℃ ~ +85℃

• Humidity: 5‑95% non‑condensing

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Compatibility

Compatible with Ampcontrol ELD V2, ELM V2 earth leakage protection relays. Cable installation inspection and leakage protection function simulation test required after replacement.