Eaton 0.4 → 0.63 A Motor Protection Circuit Breaker, 690 V ac

Eaton's reliable and robust PKZ motor protection circuit breakers have been produced by Eaton since 1932. They have continued to develop safe and innovative systems that assume the role of international trendsetting for motor protection!

The PKZMO circuit breakers are the perfect solution for optimum safety and protection of motors from faults such as an overload of high voltages, electrical short circuits or relay shutdowns. Down-time of machinery can be detrimental to a business and its operations, Eaton's PKZM0 range of motor protection circuit breakers has been created and designed to act as an intermediary between your devices, offering control and protection for vital equipment in the event of unforeseen incidents. This reduces the amount of downtime of machinery to enable operations to continue running smoothly.

Rated operating voltage 690Vac
Operating temperature range -25°C to +55°C
Temperature compensated range -5°C to +40°C
Adjustable current trip level, 0.6 – 1.0 x nominal rating
Short-circuit trip level (fixed) 14x nominal rating
Single-phase-failure sensitivity to IEC60947-4-1
Simple two-button operation for starting and stopping motors
May be locked in the "off" position

MPCBs are more critical now than ever. Most infrastructures now rely on a motor behind the scenes to power critical uninterruptible systems such as heating, ventilation and cooling. These circuit breaker systems are vital in ensuring business continues as usual, therefore must be protected against overcurrent's, thermal overloads and similar problems. To select the right MPCB, consider the systems you and your business rely upon. Checking the features and benefits of each MPCB will prove invaluable when deciding what critical infrastructure you wish to protect.

IEC (EN60) 947-1 general, 947-2 Circuit breakers, 1-4 switch disconnectors, 1-5 Motor starters, 1-6 Electrical equipment of machines

UL, CSA, LROS, GL

This motor protection circuit breaker is designed to protect motors from overloads and faults, promoting a dependable electrical system. Its sturdy construction and high breaking capacity ensure effective safeguarding in industrial applications. The compact design allows for efficient installation in various environments.

• Provides motor protection against overheating and phase failure
• Screw terminal connections simplify installation and maintenance
• Operates efficiently at a supply voltage of 690V AC
• High breaking capacity of 50kA
• Dual operating temperature range enhances installation flexibility
• Accommodates a continuous current rating of 0.63A

• Utilised for motor protection in industrial automation systems
• Suitable for applications needing robust overload protection
• Ideal for environments with varying ambient temperatures
• Implemented in circuit installations requiring phase sensitivity
• Used in electrical control panels to enhance motor safety

The device can be clipped onto IEC/EN 60715 top-hat rail, making installation straightforward.

Yes, it is designed for operation within an ambient temperature range of -25 to 40°C.

It supports screw terminal connections, accommodating both flexible and solid wires.

It features phase-failure sensitivity, which helps prevent overheating and potential damage.

The product has a lifespan of approximately 50,000 operations under standard conditions.

Eaton formerly known as Moeller