What is Eaton PKZM0-6.3 Circuit Breaker?
The Eaton PKZM0-6.3 is a 3-phase motor protective circuit breaker from the xStart series with a 3-pole design. It offers freely adjustable current ranging from 4A to 6.3A, specially designed for small 3-phase motors rated at around 380V and 2.2kW.
This switch integrates three layers of protection: overload, short-circuit and phase-loss protection, eliminating the need for an additional thermal relay. It streamlines internal wiring inside control cabinets and reduces potential fault points for more stable overall system operation. Compact in size, it fits standard DIN rail mounting for easy installation on new equipment and convenient maintenance or replacement later.
If you are looking for a durable, easy-to-install and long-term reliable motor protection switch, the PKZM0-6.3 is a proven, widely recognized practical model that has been used in the market for many years.

Why Choose Eaton PKZM0-6.3?
● It provides all-in-one protection against overload, short circuit and phase loss, with no extra thermal relay required.
● Continuously adjustable current from 4A to 6.3A, perfectly matched to 2.2kW small three-phase motors for precise protection.
● Featuring Class 10 tripping characteristic, it avoids nuisance tripping during motor startup and cuts power rapidly to safeguard windings when faults occur.
● Compact size with standard DIN rail mounting for quick and easy replacement.
● Direct drop-in replacement for old Moeller equivalent models; no wiring or cabinet modifications needed to cut labor costs.
● Robust flame-retardant housing delivers long-lasting stable performance in harsh industrial environments.

Eaton PKZM0-6.3 Technical Specifications
● Model:Eaton PKZM0-6.3
● Adjustable Current Range: Stepless adjustment from 4A to 6.3A
● Rated Operating Voltage: 690V AC
● Number of Poles: 3-pole (3P)
● Tripping Class: Class 10
● Mounting Method: Standard DIN35 rail mounting
● Applicable Motor Power: Typically suitable for 2.2kW three-phase asynchronous motors under 400V operating condition
● Operation Mode: Rotary handle type (integrated switching and trip reset)

Application Fields of Eaton PKZM0-6.3
● Industrial small fans and water circulation pumps
● Packaging machinery and light-duty conveying & transmission equipment Small precision motor units for laboratories
● Control cabinet assembly for production lines
Why Buy Eaton PKZM0-6.3 From Us
Improve efficiency
● We will send you real product photos for confirmation before shipment to prevent refurbished or used items being sold as brand-new.
● Our professional customer service team provides one-on-one support and resolves all your inquiries promptly.
● We support multiple logistics options for direct overseas delivery and can consolidate shipments with your freight forwarder.
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:What is the current adjustment range of PKZM0-6.3 and what size motor does it fit?
A1: Stepless adjustable from 4A to 6.3A. It matches 2.2kW three-phase asynchronous motors under 400V operation and works well with IE3 high-efficiency motors.
Q2: What tripping class does this MPCB have? Will it trip accidentally when the motor starts up?
A2: It adopts standard Class 10 tripping curve, which withstands inrush current during motor startup without nuisance tripping. It cuts off power quickly to protect motor windings in case of overload, short circuit or phase loss.
Q3: What is the maximum voltage rating of PKZM0-6.3? Can it be used in 690V circuits?
A3: Its rated operational voltage is 690V AC, fully compatible with common 380/400V industrial systems.
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 PKZM0-6.3!
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