Janitza 1503635 Rogowski Coil Current Transformer, 120 mm Opening, 1000 A, 333 mV Output, 3 m Cable, Class 0.5

Measuring high AC currents in tight spaces or on large busbars presents a challenge: traditional solid-core current transformers are rigid, difficult to install, and limited by their physical dimensions. The Janitza 1503635 Rogowski coil solves this by offering a flexible, lightweight sensor that wraps around the conductor, enabling accurate current measurement without interrupting the circuit.

Who is it for

This Rogowski coil is intended for electrical engineers, panel builders, and energy management professionals who need to monitor power consumption in industrial facilities, data centers, or commercial buildings. It is particularly useful for retrofitting existing installations where space is limited or where conductors are difficult to access.

Main features

• Flexible Rogowski coil with 120 mm internal diameter, easily fitted around cables or busbars
• Wide current measurement range up to 6000 A peak, configurable via compatible Janitza meters
• High accuracy Class 0.5 according to IEC 61869-2 for reliable energy data
• Output signal of 333 mV AC at nominal current, compatible with standard meter inputs
• Robust, UV-resistant and flame-retardant coil material for long service life
• 3-meter cable with 3.5 mm jack plug for simple connection to Janitza UMG series meters
• Safety rated CAT III 1000V / CAT IV 600V, insulation voltage 1000 V AC RMS
• Wide operating temperature range from -25 °C to +70 °C

Specifications

• Measurement principle: Rogowski coil (flexible current transformer)
• Internal diameter: 120 mm
• Nominal primary current: configurable (1000 A, 2000 A, 3000 A, 5000 A)
• Maximum measurable current: 6000 A peak
• Output voltage: 333 mV AC at nominal current
• Accuracy class: 0.5 (IEC 61869-2)
• Frequency range: 50/60 Hz (up to 1 kHz)
• Cable length: 3 m
• Connector: 3.5 mm jack plug
• Compatible devices: Janitza UMG 96RM-E, UMG 512, UMG 508, UMG 509, UMG 604, and others
• Insulation voltage: 1000 V AC RMS
• Overvoltage category: CAT III 1000V / CAT IV 600V
• Operating temperature: -25 °C to +70 °C
• Storage temperature: -40 °C to +85 °C
• Protection class coil: IP65
• Protection class connector: IP20
• Coil cross-section diameter: approx. 8.5 mm
• Material: flexible, UV-resistant, flame-retardant
• Standards: IEC 61010-1, IEC 61010-2-032, IEC 61869-2

Tips

For optimal accuracy, ensure the coil is closed properly and the conductor is centered within the loop. Avoid sharp bends in the coil near the connector. When connecting to a Janitza meter, configure the nominal current setting to match the expected load for precise readings.