Schneider Electric 50440 Closed Toroid a Type, Vigipact, Vigilohm, MA120, Inner Diameter 120mm, Rated Current 250A

This toroid is dedicated to Vigilohm Insulation Fault locators, and to VigiPacT type A residual current protection and monitoring relays. It allows the monitoring of the injected component from Vigilohm Insulation Monitor, and the measurement of a current rating up to 250A for VigiPacT monitoring and protection relays. The transformer ratio is 1/1000. The inner diameter of the toroid is 120 millimeters and the weight is 0.450kg. The cables must be centered within the toroid and the diameter represented by all these cables should not exceed 60 millimeters. The maximum cross section per phase (R, S, T, N) is 240mm² for a copper conductor.

Specifications:

• Range: VigiPacT
• Device Short Name: MA120
• Product or Component Type: Earth leakage current sensor
• Device Application: Equipment monitoring and control
• Range Compatibility:
• VigiPacT RH10M, RH10P
• VigiPacT RH21M, RH21P
• VigiPacT RH68M, RH86M, RH86P
• VigiPacT RH99M, RH99P
• VigiPacT RH197M, RH197P
• VigiPacT RHU, RHUs
• VigiPacT RMH
• Current Sensor Type: A type closed toroid
• [Ie] Rated Operational Current: 250 A
• Complementary:
• Transformer Ratio: 1/1000
• Network Type: AC/DC
• Network Frequency: 45...440 Hz
• [Icw] Rated Short-time Withstand Current: 85 kA for 0.5 s
• Residual Short-circuit Withstand Current: 85 kA / 0.5 s
• [Ui] Rated Insulation Voltage: 1000 V
• Overvoltage Category: IV
• [Uimp] Rated Impulse Withstand Voltage: 12 kV
• Mounting Mode:
• Fixed (cables)
• Fixed (plain backplate)
• Fixed (profiled sheet metal)
• Fixed (slotted backplate)
• Clip-on (DIN rail)
• Calorific Value: 3.89 MJ
• Connections - Terminals: Screw connection 0.22 mm²
• Dimensions:
• Height: 164 mm
• Width: 190 mm
• Depth: 44 mm
• Diameter: 120 mm (inner)
• Cable Outer Diameter: 60 mm (maximum), 240 mm²
• Net Weight: 0.59 kg
• Environment:
• IP Degree of Protection: Connectors: IP20, IP30
• Environmental Characteristic:
• Exposure to damp heat not in service: 28 cycles (25...55 °C, RH 95 %)
• Salt mist: Kb/2
• Exposure to damp heat in service: category C2: 48 hours
• Pollution Degree: Level 3
• Ambient Air Temperature for Operation: -35…70 °C
• Ambient Air Temperature for Storage: -55…85 °C
• Standards: IEC 60947-2
• Product Certifications: CE