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Circuit breakers

FAZ-T xEffect Miniature Circuit Breaker

The FAZ-T miniature circuit breaker is a protective device equipped with both a thermal and an electromagnetic release that is available in 1-, 2-, 3-, 4-, 1+N and 3+N pole versions. The FAZ-T is available with rated currents of 1 A to 40 A. Depending on the device type, the switching capacity is 15 kA or 10 kA according to IEC/EN 60898-1, and 25 kA, 20 kA or 15 kA according to IEC 60947-2.

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IN ACCORDANCE WITH
IEC/EN 60947-2 and IEC/EN 60898-1
VERSIONS
1-, 2-, 3-, 4-, 1+N and 3+N pole
TRIPPING CHARACTERISTICS
B, C and D

Core features

  • Premium miniature circuit breaker for industrial applications and building installations
  • Current limiting class 3
  • Back-up fuse with high selectivity, thanks to low let-through energy
  • Contact position indicator red – green
  • Rated currents up to 40 A
  • Tripping characteristics B, C and D
  • Rated switching capacity 15 kA or 10 kA according to IEC/EN 60898-1, and 25 kA, 20 kA or 15 kA according to IEC/EN 60947-2
  • Compatible with standard busbars
  • Comprehensive range of accessories, which can also be retrofitted

Reliable cable protection

MCBs protect cables against damage due to overload and short circuits: In the event of dangerously high currents, the circuit breaker’s bimetallic thermal release will disconnect the power supply. In the event of a short circuit, the electromagnetic release will disconnect the power supply in a timely manner.

A design that is standard-compliant and quality-tested

Part 1 of IEC/EN 60898 applies to AC MCBs if the rated voltage between the phases does not exceed 440 V, the rated current does not exceed 125 A and the rated breaking capacity does not exceed 25,000 A. Circuit breakers that fall within the scope of IEC/EN 60898-1 are designed to be operated by non-experts. IEC/EN 60947-2 (VDE 0660-101) applies to circuit breakers in circuits with rated voltages up to 1,000 V AC, or up to 1,500 V DC.

The right MCB for every situation

Circuit breakers with tripping characteristic B are the standard MCB type used for lighting and socket circuits. For circuits with high inrush and peak currents (e.g. motors and luminaire banks) devices with tripping characteristic C are used. Circuit breakers with tripping characteristic D are used for circuits with inductive and capacitive loads (solenoid valves, transformers etc.).
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