The PXL series of type B miniature circuit breakers (MCBs) from Eaton's xPole range of MCBs features high quality overcurrent protection that is independent of the mains voltage. These single pole MCBs provide short-circuit interruption that reduces the let-through electrical energy and overload currents that can damage the circuit. The MCB has high selectivity as a pre-fuse with low passband energy. The modular design makes for simple installation of these MCBs into distribution boards and switch circuits whilst additional modules can also be added.

• Single pole miniature circuit breaker (2 and 3 pole variants also available)
• Indication of the contact position is easy to identify due to a "red-green" indicator, to increase safety and offer protection for the operator
• The circuit breaker features dual terminals which are compatible with both busbar and cables
• The device is easy to use, with a simple colour coded toggle
• The appliance has a double terminal, lift/jaw top and bottom and free selection of rail arrangement top and bottom
• Easy installation with modular design
• Finger-proof / back-of-hand-proof
• Quick-fit action with 3 locking positions for top-hat rail IEC / EN 6071
• High breaking capacity
• Current limiting feature for enhanced safety and reliability of the electrical system
• Current rating from 0.5 to 63 Amps

The Eaton Miniature circuit breakers (or MCBs) are switchgear for use in industrial, advanced commercial and residential applications.

Type B: Instantaneous trip when the electrical current through the device is 3 to 5 times the rated current. The type B trip curve MCBs are designed for standard circuit protection, typically protection of generators, persons and very long cables

Type C: Instantaneous trip when the flow-through current is 5 to 10 times the rated current.
Type C trip curve residential and domestic MCBs are used for higher inrush currents such as in machines and lighting, providing overload protection of circuits and other consumer units.

Type D: Instantaneous trip when the flow-through current is 10 to 14 times the rated current.
D curve MCBs are suitable for inductive and capacitive loads like transformers condensers. and electric motors.

Type K: Instantaneous trip when the flow-through current is 10 to 14 times the rated current.
Type K curve MCBs are suitable for inductive loads like transformers, condensers. and electric motors.

Type S: Instantaneous trip when the flow-through current is 13 to 17 times the rated current.
Suitable for applications where high levels of inrush current are expected. The high magnetic trip point of type S curve MCBs prevents nuisance tripping in high inductive applications such as motors, transformers and power supplies.

Type Z: Instantaneous trip when the flow-through current is 2 to 3 times the rated current.
Z curve MCBs are intended for use in electrical circuits that require a very low short circuit trip setting, for example, semiconductors.

IEC / EN 60898