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PL7-DC xPole Miniature Circuit Breaker

The PL7 miniature circuit breaker (MCB) is a protective device that is equipped with both a thermal and an electromagnetic release. The former responds in the event of an overload, while the latter offers protection against short circuits. The 1- and 2-pole PL7 devices for DC applications are available with rated currents from 1 A to 50 A and can withstand rated voltages up to 250 V DC. The switching capacity is 10 kA. The circuit breaker, which is available with tripping characteristic C, is equipped with a red-green contact-position indicator for indicating the device state: green means that the contacts are open, and red that they are closed. 

PL7-DC xPole Miniature Circuit Breaker
IEC 60947-2
compliant MCB
Tripping Characteristic
C
rated currents
up to 50 A

Core features

  • Premium miniature circuit breaker for DC applications
  • Current limiting class (formerly selectivity class) 3
  • Back-up fuse with high selectivity, thanks to low let-through energy
  • Contact position indicator red – green
  • Rated currents up to 50 A
  • Tripping characteristic C
  • Rated switching capacity 10 kA according to IEC/EN 60947-2
  • Rated voltage up to 250 V DC per pole
  • Complies with the insulation coordination requirements (= distance between the contacts ≥ 4 mm)
  • Busbar compatible
  • Lift/claw double terminals at top and bottom
  • For mounting on busbar at top or bottom, as required
  • Guide for secure terminal connection
  • 3-position DIN-rail clip to simplify removal from the busbar system
  • Comprehensive range of accessories, which can also be retrofitted

The next generation has arrived

Miniature circuit breakers are now among the most common overcurrent protection devices. Traditional fuses are increasingly being replaced by modern circuit breakers that can be switched on again after tripping. Eaton offers premium miniature circuit breakers with different rated currents and tripping characteristics, for residential and commercial applications (xPole series) as well as for industrial applications (xEffect series).
The basic task of MCBs is to protect the cables in low-voltage networks against damage due to overload and short circuits.

The right MCB for every situation

When selecting the right type of circuit breaker for a particular application, the following three criteria must be taken into account:

1) Current limiting class (= selectivity class)
MCBs are divided into the current limiting (selectivity) classes 1, 2 and 3, which are based on the switch-off time under short-circuit conditions.

2) Rated current
The rated current indicates the current values that a MCB can permanently withstand at an ambient temperature of 30 °C (in residential and commercial applications).

3) Tripping characteristics
Circuit breakers with tripping characteristics B and C are the most common types, as they are the standard in both residential and commercial applications.

A design that’s standard-compliant and quality-tested

In principle, all Eaton miniature circuit breakers are type-tested and approved in accordance with either IEC/EN 60898-1 or IEC/EN 60947-2. Circuit breakers that fall within the scope of IEC/EN 60898-1 are primarily intended for use in domestic installations and are designed to be operated by non-experts. IEC/EN 60947-2 applies to circuit breakers in circuits with rated voltages up to 1,000 V AC, or up to 1,500 V DC.
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