Ampcontrol 101658 EL500S60 EL500S-1-60ID Earth Leakage Toroid
60mm Aperture Sensitive Toroid for ELD Earth Leakage Protection Systems
1. Core Product Overview
The Ampcontrol 101658 (EL500S60 / EL500S-1-60ID) is a high-precision earth leakage toroid, a core sensing component for Ampcontrol ELD (Earth Leakage Device) protection relays, designed to detect and measure leakage currents in industrial electrical systems with extreme sensitivity and accuracy. It features a 60mm inner diameter (ID) aperture, optimized for accommodating single or multiple power cables in earth-fault-limited systems, particularly in coal mining and heavy industrial applications compliant with AS/NZS 2081:2011 safety standards. The toroid integrates a low-noise, high-permeability magnetic core with shielded winding, ensuring reliable leakage current sensing even in high electromagnetic interference (EMI) industrial environments, and provides a linear 4-20mA output signal for direct integration with ELD relays, PLCs and SCADA systems for real-time monitoring and protection control. Built with industrial-grade encapsulation and rugged materials, it operates stably in harsh conditions (-25°C~+70°C) with vibration, dust and moisture resistance, forming a critical safety layer for personnel and equipment protection in electrical distribution systems.
• Core Role: Earth leakage current sensing; ELD relay signal input; electrical system safety monitoring; fault detection; personnel/equipment protection
• Model Info: 101658 (Ampcontrol part number); EL500S60 / EL500S-1-60ID (product designation); 60mm aperture earth leakage toroid; ELD protection system component
• Key Specs: 60mm inner diameter; high-permeability magnetic core; shielded winding; 4-20mA linear output; -25°C~+70°C operating temp; IP65 protection (encapsulated); coal mining certified
• Reliability: AS/NZS 2081:2011 compliance; IEC 61000-4 EMC protection; vibration/shock resistance (IEC 60068); long-term stability; low drift sensing
2. Sensing Performance & Signal Processing
The EL500S-1-60ID toroid delivers high-precision leakage current sensing with a measurement range of 100mA to 2.5A, covering typical earth fault levels in industrial and mining electrical systems. It employs a high-permeability magnetic core material that minimizes hysteresis and eddy current losses, ensuring accurate current-to-voltage conversion with a linearity error of less than 1% over the entire measurement range. The shielded winding design provides immunity to external electromagnetic interference (EMI) from motors, VFDs and power distribution equipment, maintaining signal integrity in noisy industrial environments. The toroid generates a 4-20mA output signal proportional to the detected leakage current, enabling direct interface with Ampcontrol ELD relays (e.g., ELDv2 series) and third-party monitoring systems for real-time data acquisition and protection trip control. It supports fast response times (≤0.1s) for critical fault conditions, ensuring rapid protection action to prevent electrical accidents and equipment damage.
• Sensing Range: 100mA - 2.5A leakage current; 1% max linearity error; wide dynamic range; fault level coverage
• Signal Output: 4-20mA linear current output; direct ELD relay interface; PLC/SCADA integration; real-time monitoring; fault signal transmission
• EMI Immunity: Shielded winding; high-permeability core; external interference rejection; IEC 61000-4 compliance; noise reduction design
• Response Performance: ≤0.1s typical response time; fast fault detection; ELD relay trip activation; accident prevention; protection reliability
3. Mechanical Design & Installation Compatibility
The EL500S60 toroid features a compact, robust mechanical design with a 60mm inner diameter aperture, allowing easy installation around power cables in electrical distribution panels, motor control centers (MCCs) and mining equipment enclosures. It uses a split-core or solid-core construction (per model variant) for flexible installation options, including retrofitting into existing systems without cable disconnection (split-core) or permanent, high-integrity mounting (solid-core). The unit is encapsulated in a rugged, IP65-rated housing, protecting internal components from dust, moisture and chemical exposure in harsh industrial and mining environments. It supports DIN rail mounting and panel fixation with adjustable brackets, ensuring secure installation and vibration resistance (5-50Hz, IEC 60068-2-6) to prevent signal drift or mechanical damage during operation. The toroid is fully compatible with Ampcontrol ELDv2 earth leakage relays and IPE protection systems, requiring one toroid per protected outlet for comprehensive electrical safety coverage. Its lightweight design and compact form factor minimize installation space requirements while maximizing sensing performance for high-density electrical systems.
• Physical Dimensions: 60mm inner diameter; compact form factor; lightweight construction; space-efficient design; easy cable installation
• Installation Options: DIN rail mounting; panel fixation; adjustable brackets; split-core/solid-core variants; retrofittable (split-core)
• Environmental Protection: IP65-rated encapsulation; dust/moisture resistance; chemical exposure protection; harsh environment operation
• System Compatibility: Ampcontrol ELDv2 relays; IPE protection systems; one toroid per outlet; electrical distribution panels; MCC integration
4. Industrial Ruggedness & Safety Compliance
The 101658 EL500S60 toroid is engineered for extreme industrial ruggedness, with an encapsulated design that withstands temperature extremes (-25°C~+70°C), high humidity (5-95% non-condensing), and industrial vibration/shock (15g, IEC 60068-2-27). It complies with AS/NZS 2081:2011 safety standards for earth fault-limited systems, specifically approved for coal mining applications where electrical safety is critical. The unit is constructed with flame-retardant materials and corrosion-resistant components, ensuring safe operation in flammable or corrosive environments, and the encapsulation provides electrical insulation (2.5kV) between the sensing circuit and external conductors, preventing electrical hazards. It undergoes rigorous factory testing for leakage current accuracy, signal linearity and environmental durability, guaranteeing reliable performance throughout its service life, and the low-power design minimizes energy consumption while maintaining high sensing sensitivity.
• Environmental Tolerance: -25°C~+70°C operating temp; 5-95% non-condensing humidity; vibration/shock resistance (IEC 60068); harsh condition operation
• Safety Compliance: AS/NZS 2081:2011 certified; coal mining approved; flame-retardant materials; corrosion resistance; electrical insulation (2.5kV)
• Durability: Encapsulated construction; long-term stability; low drift; factory pre-tested; high-integrity components
• Power Efficiency: Low-power design; energy-saving operation; minimal heat generation; high sensing sensitivity; no external power required
5. Typical Applications & System Integration
Key Industrial Sectors: Coal mining; mineral processing; petrochemical; power generation; manufacturing; heavy industry; electrical distribution; motor control centers (MCCs).
Core Use Cases: Earth leakage protection for electrical systems; ELD relay signal input; mining electrical safety; industrial distribution panels; MCC fault monitoring; personnel/equipment protection.
Certifications & Compliance: AS/NZS 2081:2011 (earth fault systems); IEC 61000-4 (EMC); IEC 60068 (vibration/shock); IP65 protection; coal mining safety certified; CE/UL compliant.
Quality & Warranty: Ampcontrol genuine original component; factory calibrated for accuracy; 24-month standard warranty; technical support for ELD system configuration, toroid installation and leakage current calibration.
YMGK Purchase Information
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Technical Documentation | Ampcontrol 101658 EL500S60 EL500S-1-60ID | 60mm Earth Leakage Toroid for ELD Protection Systems
