NZR 42600200 Through-Hole Current Transformer 400/5 A, Class 1, 5 VA

The NZR 42600200 is a through-hole current transformer engineered for precise measurement of high primary currents up to 400 A, converting them to a standard 5 A secondary output. Its 30 mm inner diameter accommodates large conductors or busbars, simplifying installation in existing panels without disconnecting the primary circuit.

Highlights

• High accuracy: Class 1 ensures reliable readings for metering and monitoring.
• Rated burden of 5 VA supports connection to standard measuring instruments.
• Compact through-hole design with 30 mm aperture for easy retrofitting.
• Wide operating temperature range from -25°C to +50°C.
• Self-extinguishing polycarbonate housing for enhanced safety.

In daily use

Ideal for energy management systems, building automation, and industrial control panels, this transformer provides galvanic isolation and scales down high currents for safe measurement. Its screw terminals ensure secure wiring, and the robust construction withstands demanding environments.

Full specifications

• Primary current: 400 A
• Secondary current: 5 A
• Accuracy class: 1
• Rated power: 5 VA
• Max. operating voltage: 0.72 kV
• Test voltage: 3 kV
• Frequency: 50/60 Hz
• Inner diameter: 30 mm
• Insulation class: E
• Mounting: screw mounting / DIN rail with adapter
• Housing material: self-extinguishing polycarbonate
• Connection: screw terminals
• Operating temperature: -25°C to +50°C
• Storage temperature: -40°C to +80°C
• Protection class: IP20

Final note

For reliable current measurement in compact spaces, the NZR 42600200 delivers accuracy and durability.