Schneider Electric 50440 VigiPacT MA120 Closed Toroid – 120 mm Inner Diameter, 250 A, Type A, 1/1000 Ratio

제품 설명

The Schneider Electric 50440 is a Type A closed toroid from the VigiPacT range, designed as a residual current sensor for earth leakage protection and insulation fault monitoring. It features a 120 mm inner diameter and a 250 A rated operational current, with a transformer ratio of 1/1000 for precise residual current measurement. The toroid is compatible with VigiPacT RH-series residual current relays and Vigilohm insulation fault locators, enabling continuous monitoring of the power supply and the relay/toroid link. With an 85 kA/0.5 s short-time withstand current, 1000 V rated insulation voltage, and overvoltage category IV, it delivers reliable performance in demanding industrial and commercial power distribution systems.

기본 사양

• Type A Residual Current Sensing: Detects AC and pulsating DC residual currents, meeting the requirements of modern earth leakage protection for equipment with electronic loads.
• 120 mm Inner Diameter: Accommodates cable outer diameters up to 60 mm and maximum conductor cross-sections up to 240 mm², simplifying installation around large cables and busbars.
• 250 A Rated Operational Current: Supports continuous monitoring of circuits up to 250 A, suitable for feeder and branch protection in industrial and commercial distribution boards.
• 1/1000 Transformer Ratio: Provides precise and consistent residual current measurement for accurate coordination with VigiPacT protection relays.
• 85 kA/0.5 s Short-Time Withstand: Withstands high fault currents without damage, ensuring reliability in demanding power distribution environments.
• Reinforced Insulation (Overvoltage Category IV): Offers enhanced dielectric strength and safety for use at the origin of installations and in harsh electrical environments.
• Versatile Mounting Options: Supports fixed mounting on cables, plain or slotted backplates, profiled sheet metal, and clip-on DIN rail mounting for flexible panel integration.

기술 사양

매개변수	값
제조업체	슈나이더 일렉트릭
모델	50440
시리즈	비지팩트
장치 약칭	MA120
제품 유형	Earth Leakage Current Sensor (Closed Toroid)
Current Sensor Type	Type A closed toroid
정격 작동 전류(Ie)	250 에이
Transformer Ratio	1/1000
Inner Diameter	120 mm
Rated Short-Time Withstand Current (Icw)	85 kA for 0.5 s
정격 절연 전압(Ui)	1000V
정격 임펄스 내전압(Uimp)	12 kV
과전압 범주	IV
네트워크 주파수	45…440 Hz
크기 (높이 × 너비 × 깊이)	164 mm × 190 mm × 44 mm
순중량	0.59 kg
주변 작동 온도	-35…+70 °C
표준	IEC 60947-2