2P AC Miniature Circuit Breaker

The Mora PLS-60H 2P AC Miniature Circuit Breaker provides overload and short-circuit protection for AC distribution circuits without residual current protection. Compared with single-pole MCBs, the two-pole design enables synchronous switching of the live and neutral conductors, making it suitable for applications where complete circuit isolation is required during maintenance or fault conditions.

The circuit breaker adopts a thermal magnetic trip mechanism, combining long-time overload protection with instantaneous short-circuit protection. It is compatible with standard 35mm DIN rail mounting systems and widely used in household distribution boxes, commercial panels, and small electrical equipment protection. Explore the full AC Circuit Breaker series.

Basic Parameters

Features

Two-Pole Linked Protection Structure

The 2P AC Miniature Circuit Breaker integrates independent thermal magnetic protection mechanisms on both poles. When overload or short-circuit faults occur, both poles trip together to disconnect the live and neutral lines simultaneously.

The two-pole linkage structure is suitable for distribution circuits requiring complete isolation, including household main switches, water heater circuits, air conditioning circuits, and commercial power distribution panels.

Multiple Trip Curves for Different Loads

Different trip curves allow the MCB to match various electrical loads. The C curve configuration is widely used for residential and commercial distribution systems due to its balance between normal operation and startup current tolerance.

Flame-Retardant Housing & Enhanced Conductive System

The circuit breaker uses V0-grade PA66 flame-retardant nylon housing material with good resistance to heat deformation. Internal conductive components are manufactured with reinforced copper parts and silver alloy contacts to maintain stable current transmission during switching operations.

The tunnel-type terminal structure accommodates different cable specifications and provides secure connection performance for residential distribution boxes, commercial panels, and electrical cabinets.

Long Electrical and Mechanical Operating Life

The MCB is designed for repeated switching operations, with an electrical life of ≥8000 operations and a mechanical life of ≥20000 operations. The standard 35mm DIN rail mounting structure allows convenient installation in common distribution equipment.

The handle is marked with clear ON/OFF status identification, allowing operators to quickly check circuit conditions during installation and maintenance.

OEM Customization Options

Working Principle

Overload Protection

When the circuit operates under continuous overload conditions, the internal bimetal element gradually heats and deforms. The deformation activates the trip mechanism, disconnecting the circuit and reducing the risk of cable damage caused by prolonged excessive current.

Short Circuit Protection

When a short circuit occurs, the electromagnetic trip unit responds rapidly to the sudden increase in current. The generated magnetic force drives the contact system to separate quickly, interrupting the fault current and completing circuit protection.

After the fault is removed, the operating handle can be manually reset to restore the circuit.

Applications

Residential Distribution Systems

The 2P AC Miniature Circuit Breaker is widely installed in household distribution boxes as protection for incoming power circuits and dedicated appliance circuits.

Typical applications include household main switches, air conditioning circuits, water heater circuits, and general socket circuits. The two-pole linked structure enables simultaneous switching of live and neutral conductors in single-phase AC systems.

Commercial and Small Building Distribution

For small commercial buildings, offices, retail stores, and workshops, the MCB is used in distribution panels to protect lighting circuits, socket circuits, and small electrical loads.

Different current ratings and trip curves allow the circuit breaker to match various load characteristics, including general power consumption and equipment with higher startup current.

Photovoltaic AC Output Protection

The 2P AC Miniature Circuit Breaker can be installed on the AC output side of residential photovoltaic systems to provide overcurrent and short-circuit protection.

The two-pole design enables synchronized isolation of AC conductors during system inspection and maintenance.

Factory Capability

Zhejiang Pugao Electric Power was established in 2011 and operates a 5,000㎡ production facility in Yueqing, Zhejiang. The factory covers the complete manufacturing process, including plastic injection molding, copper component processing, hardware assembly, automated production, and final performance inspection.

During production, each circuit breaker undergoes electrical performance verification covering overload characteristics, short-circuit protection performance, temperature rise control, and two-pole synchronous operation.

With ISO9001 quality management system certification and intellectual property management system certification, PUGAO maintains traceable production processes from component manufacturing to finished product inspection. The factory supports OEM production, customized orders, and bulk supply for overseas electrical markets. Learn more about us.

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