ABB CM-CT 200/5 Current Transformer 5VA Class 1 1SVR450116R5400

Measuring high currents safely and accurately is a challenge in electrical installations. The ABB CM-CT 200/5 current transformer converts a primary current of 200 A into a standard 5 A secondary signal, enabling standard measuring instruments to monitor large loads without direct connection to the high-current circuit.

Who is it for

Electrical engineers, panel builders, and maintenance technicians who need reliable current measurement for metering, monitoring, or protection in low-voltage distribution systems.

Main features

• Primary current rating: 200 A
• Secondary current rating: 5 A
• Rated burden: 5 VA
• Accuracy class: 1
• Rated frequency: 50/60 Hz
• Rated insulation voltage: 0.72 kV
• Overcurrent limiting factor: FS5
• Thermal short-time current: 12 kA (1s)
• Dynamic short-time current: 30 kA
• Max. primary conductor diameter: 21 mm (round)
• Max. primary busbar dimensions: 20 x 10 mm
• Mounting: DIN rail or screw mounting
• Operating temperature: -25 to +50 °C
• Storage temperature: -40 to +80 °C

Specifications

• Product type: Current transformer
• Series: CM-CT
• Primary current rating (Ipn): 200 A
• Secondary current rating (Isn): 5 A
• Rated power (burden): 5 VA
• Accuracy class: 1
• Rated frequency: 50/60 Hz
• Rated insulation voltage (Ui): 0.72 kV
• Overcurrent limiting factor (FS): FS5
• Thermal rated short-time current (Ith): 12 kA (1s)
• Dynamic rated short-time current (Idyn): 30 kA
• Max. primary conductor diameter: 21 mm (round)
• Max. primary busbar dimensions: 20 x 10 mm
• Operating temperature range: -25 to +50 °C
• Storage temperature range: -40 to +80 °C
• Mounting type: DIN rail / screw mounting
• Protection degree (housing): IP40
• Protection degree (terminals): IP20

Tips

Ensure the primary conductor passes through the transformer window and the secondary is connected to a burden within the rated 5 VA for accurate measurements. Do not open the secondary circuit while primary current is flowing.