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

Eaton's reliable and robust motor protection circuit breakers are the perfect solution for your motor protection needs, providing protection from electrical faults such as an overload of high voltages, short circuits or relay shutdowns.

Down-time of machinery can be detrimental to a business and its operations, Eaton's PKZM0 motor protection range of circuit breakers has been created and designed to act as an intermediary between your devices, protecting vital equipment in the event of unforeseen incidents. This reduces the amount of downtime of machinery to enable operations to continue running smoothly.

The PKZM0 motor protection circuit breakers are matched to the DIL contactor series making the ideal configuration or motor starter combinations. This motor protection range of circuit breakers has a short circuit breaking capacity rated to 150 kA up to 12 A and 50kA up to 32 A. Accessories including auxiliary contacts, trip indicating auxiliary contacts, voltage release and shunt trips can be installed without tools and greatly reduce installation time.

• Manually-actuated motor protective circuit breaker
• Rotating handle with clear switch position (ON and OFF)
• DIN-rail mounting
• Forms part of the xStart family of control gear products
• Rated operating voltage 690Vac
• Typical motor protection accessories – Shunt release 492-1709 & 492-1715, lockable rotary handle 244-0113

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 systems are vital in ensuring business continues as usual, therefore must be protected against overcurrent's, thermal overloads and similar problems.

Reduce the chance of machinery downtime with this motor protection circuit breaker from Eaton. It prevents a motor from operating in abnormal conditions, so cuts down on the risk of damage caused by issues like overheating. If an overload or short circuit occurs, the device automatically disconnects the circuit without needing any manual intervention. The switching positions are clearly marked, so you'll always know if the device is on or off. Choose this breaker for commercial and industrial applications like the protection of motors used in fans, heaters and gearboxes.

• IP20 rated enclosure so it's protected against objects larger than 12mm and human touch
• Compact dimensions of 93 (H) x 45 (W) x 76mm (D) for maximum packing efficiency on a control panel
• Sensitive to phase failures for extra safety
• Includes a test function to ensure the device is working correctly for peace of mind

Current overloading is an unprogrammed scenario that occurs when a motor starts too frequently or when one of its three power phases is reduced. This causes a motor to overheat and draw a higher than normal nominal current.