NK Technologies AG1-NCDC-120-NF-100 Ground Fault Sensor

Description:

The NK Technologies AG1-NCDC-120-NF-100 Ground Fault Sensor is used in industrial electrical systems to detect ground fault leakage current and provide a solid-state output for equipment protection and fault monitoring. Commonly installed in motor control centers, industrial control panels, pump systems, HVAC equipment, machine tools, and process automation systems where personnel and equipment protection from ground faults is required. Maintenance teams, OEMs, and system integrators use this ground fault sensor for electrical safety upgrades, machine protection, preventive maintenance, and replacement of legacy ground fault detection devices.

Applications:

The NK Technologies AG1-NCDC-120-NF-100 Ground Fault Sensor is commonly used to monitor all current-carrying conductors in grounded single-phase and three-phase delta or wye electrical systems. It detects leakage currents using the zero-sum current sensing principle and interfaces with shunt-trip breakers, PLCs, and other control equipment to help protect personnel, machinery, and electrical distribution systems from ground fault conditions.

Technical Specifications:

• Manufacturer: NK Technologies
• Model / Part number: AG1-NCDC-120-NF-100
• Product type: Ground fault sensor
• Series: AG1 Ground Fault Detector
• Function: Ground fault detection and protection
• Power supply: 120 VAC (66–132 VAC), 50/60 Hz
• Setpoint range: Factory adjustable, 5–100 mA
• Output type: Normally closed solid-state DC output
• Output rating: 0.15 A at 30 VDC
• Output mode: Normally de-energized (NF)
• Sensing aperture: 0.75 in. (19 mm) diameter
• Response time: 150 ms @ 5% above setpoint, 100 ms @ 50% above setpoint, 50 ms @ 500% above setpoint
• Monitored circuit voltage: Up to 1500 VAC isolation
• Frequency range: 50–60 Hz monitored circuit
• Operating temperature: -20°C to +50°C (-4°F to +122°F)
• Certifications: UR/cUR, CE (configuration dependent)

Common Replacements:

• NK Technologies AG3-NCDC-120-NF-030
• NK Technologies AGL1-NCDC-120-NF-100
• NK Technologies AG1-NCDC-120-NF-030