Orbis OB526280 At20 50/5a current transformer

The Orbis OB526280 At20 50/5a transformer is a current transformer designed to measure electrical currents. Here is an overview of its specifications and technical features:

Main features:

• Type: Bar current transformer/through cable
• Secondary terminals: Nickel-plated brass
• Container Material: Self-extinguishing with excellent mechanical and thermal resistance
• Magnetic Core: Grain oriented silicon iron
• Primary Current Range: 40A to 250A
• Secondary Current Range: 1A or 5A
• Possibility of inserting into the primary: Standard size cables or bars

Technical features:

• Test Voltage: 3 kV AC (1 min)
• Frequency: 50-60Hz
• Safety Factor: Fs
• Maximum Mains Voltage: 720 V
• Nominal Short Circuit Thermal Intensity: Depends on the bar
• Nominal Dynamic Intensity: Idin = 2.5 x Ith
• Overload Current: 1.2 x In
• Operating Temperature: From -10 °C to +50 °C
• Installation: Via brackets/DIN rail
• Primary Insertion Dimensions: Bar: 20mm x 5mm, Cable: Diameter 16mm

Normative requirements:

• IEC 185
• UNE EN 60044-1
• IEC 801/1-3.4
• IEC 1010
• EN 50081-82
• VDE 0414
• BS 3938
• DIN 57414

VA Power and Classes:

• Class 1: 0.5 VA
• Class 3: 1 VA