Schneider Electric 56173 VigiPacT RH99M Earth-Leakage Relay – 0.03–30 A Sensitivity, 0–4.5 s Delay, 220–240 V AC, Manual Reset

Description du produit

The Schneider Electric 56173 is a VigiPacT RH99M residual current protection relay designed for earth-leakage monitoring and protection in low-voltage electrical installations. It works in conjunction with a compatible Schneider Electric Type A toroid or rectangular sensor to measure residual earth-leakage current, tripping an associated circuit breaker when the set threshold is exceeded. The relay offers a wide sensitivity range of 0.03–30 A with 9 selectable thresholds and a time delay adjustable from instantaneous to 4.5 s in 9 steps. It operates on a 220–240 V AC 50/60 Hz supply and provides 1 NO + 1 NC + 1 C/O output contacts. The unit mounts on a 35 mm DIN rail inside a switchboard, features IP40 front protection, and requires a local manual reset after fault clearance. Typical applications include protection against direct and indirect contact, fire hazards, and motor earth faults in industrial, commercial, and infrastructure power distribution systems.

Caractéristiques standard

• Wide Sensitivity Range 0.03–30 A: Nine selectable residual current thresholds from 30 mA to 30 A allow precise adaptation to different protection requirements, from personnel safety to fire hazard prevention.
• Adjustable Time Delay 0–4.5 s: Nine selectable delay settings from instantaneous to 4.5 s enable selective coordination with upstream and downstream protective devices.
• Manual Reset with Local Control: The relay requires a local manual reset after fault clearance, ensuring the cause of the fault is investigated before re-energization.
• Continuous Monitoring: The relay continuously monitors the power supply, the relay-to-toroid link, and internal electronics, providing early detection of system faults.
• ComPacT Circuit Breaker Coordination: Ensures coordination with ComPacT circuit breakers, switching off within 40 ms for fast and reliable fault disconnection.
• Type A Residual Current Detection: Works with Schneider Electric Type A toroids or rectangular sensors to detect AC and pulsating DC residual currents.
• Reinforced Insulation (Overvoltage Category IV): VigiPacT relays feature reinforced insulation rated for overvoltage category IV, suitable for installation at the origin of the electrical supply.

Spécifications techniques

Paramètre	Valeur
Fabricant	Schneider Electric
Modèle	56173
Série	VigiPacT
Nom abrégé de l'appareil	RH99M
Type de produit	Residual Current Protection Relay (Earth-Leakage Relay)
Tension d'alimentation nominale	220–240 V AC, 50/60 Hz
Sensibilité au courant résiduel	0.03–30 A (9 selectable thresholds)
Time Delay	0–4.5 s (9 selectable settings)
Output Contacts	1 NO + 1 NC + 1 C/O
Tension de tenue aux impulsions nominale (Uimp)	8 kV
Monitored System Voltage	Up to 1000 V AC, 50/60/400 Hz
Montage	Rail DIN (35 mm)
Degré de protection	IP40 (front face)
Dimensions (L × H × P)	54 mm × 97 mm × 74 mm
Poids net	0.276 kg
Normes	IEC 60947-2; Green Premium (RoHS/REACh)