What is Eaton PKZM0-25 Circuit Breaker?
The Eaton PKZM0-25 is a dedicated motor protection switch, known in the industry as an MPCB. Unlike regular household circuit breakers, it is engineered specifically for motor operating characteristics.
Industrial motors draw a huge inrush current upon startup, and may encounter issues such as overload, locked rotors or phase loss during operation. This switch closely monitors motor operating conditions:
● It remains energized without tripping during normal motor operation
● It triggers delayed shutdown to protect the motor in case of overload
● It instantly cuts off the circuit when short circuits or severe faults occur
● It also supports manual switching for isolation and control purposes.
In short, it serves as a dedicated safety protector for motors, delivering far higher protection accuracy and durability than standard circuit breakers
Why Choose the Eaton PKZM0-25?
● Custom-built for motors and outperforms standard circuit breakers
Ordinary breakers only safeguard wiring circuits, while the PKZM0-25 effectively prevents false tripping during normal motor startup for more precise protection.
● Stable and long-lasting in industrial environments
It withstands harsh working conditions with frequent start-stop cycles and fluctuating loads.
● Extends motor service life significantly
It detects motor overloads promptly to avoid sustained overheating and reduce breakdowns.
Eaton PKZM0-25 Technical Specifications
Model: Eaton PKZM0-25
Pole Configuration: 3P three-phase dedicated motor protection structure
Adjustable Current Range: 20A – 25A for medium-power motor loads
Trip Class: Class 10, precisely calibrated for industrial motor startup characteristics
Dimension: 45mm slim body design for space-saving cabinet installation
Protection Grade: IP20, safe for indoor control cabinet assembly
Working Temperature: -25°C to +55°C, adaptable to diverse industrial climate conditions
Installation & Usage Tips for PKZM0-25
● Confirm the rated current of matched motor falls within 20–25A before installation.
● It is recommended to combine with contactors to build standard motor start-up circuits.
● Regularly check and fasten all wiring terminals.
● Do not expose the unit to high humidity or strong corrosive environments for long-term operation. Install a protective cabinet if necessary.
Optional Accessories Available
Improve efficiency
● Install auxiliary contacts to transmit switch status signals for remote equipment monitoring.
● A shunt trip accessory enables remote circuit disconnection and works with all kinds of automated control systems.
● An undervoltage trip automatically cuts power when grid voltage is abnormal to protect downstream motors.
Aftersales Support
Quantity available: In stock.
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Warranty: 12 months.
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Lead time: Shipment within 3-5 working days.
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Terms of payment: T/T. RMB (CNY) support.
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Courier partners: FedEx, DHL, UPS, TNT, EMS, SF express.
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FAQ
Q1: Can this model directly replace the old Moeller PKZM0-25?
A1: Absolutely. After Eaton acquired Moeller, all technical parameters, mounting dimensions and wiring layouts of the PKZM0 series remain unchanged. It can be installed as a direct replacement without modifying cabinets or wiring.
Q2: Do I need to take apart the housing to adjust the current?
A2: No disassembly is required. An adjustment knob is located on the front of the unit. Simply turn it to set the rated current for easy operation.
Q3: What mounting methods are supported?
A3: It comes standard for DIN 35mm rail mounting, the most common installation solution for industrial control cabinets. Screw mounting is also available with optional accessories.
Q4: How can I place an order or apply for bulk purchase discounts?
A4: Send your required order quantity via email to Irene8866@163.com, or leave us a message on WhatsApp (+86 18950163907). We will reply within 24 hours with formal quotation and stock confirmation.
For more product information, please contact our professional sales team to obtain the latest pricing and stock information for the Eaton PKZM0-25!
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