What is Eaton PKZM0-0.16 Circuit Breaker?
The Eaton PKZM0-0.16 is a high-precision ultra-low-current motor protection circuit breaker designed exclusively for milliamp-level micro motors.
Unlike regular small-current MPCBs for general automation, the PKZM0-0.16 features an ultra-fine adjustable current range of 0.1A–0.16A, covering tiny motor loads that no standard breakers can protect.
It is specially engineered for delicate, low-power precision equipment, providing sensitive overload detection, phase loss monitoring, and instant short-circuit cutoff for miniature drive systems, laboratory instruments, and medical micro devices.

Professional Technical Parameters
● Model: Eaton PKZM0-0.16
● Pole Configuration: 3P motor-specific protection structure
● Ultra-low Adjustable Current Range: 0.1A ~ 0.16A (milliamp micro load level)
● Trip Grade: Class 10 (precision motor startup adaptive trip curve)
● Max Rated Voltage: AC 690V 50/60Hz
● Professional Protection Logic: Sensitive overload, short-circuit & hidden phase-loss protection
● Working Temperature Range: -25℃ to +55℃ (stable for precision indoor & industrial environments)

Professional Application Scenarios
The PKZM0-0.16 is not for ordinary small fans or water pumps. It serves high-precision micro motor scenarios requiring ultra-sensitive protection
● Laboratory testing instrument micro drive motors
● Medical precision miniature pump and valve motors
● Micro precision printing and engraving equipment
● Miniature automated fine-tuning machinery
● Ultra-low-power sensor drive and micro power machinery systems

Design Highlights
● Material: The housing material is high temperature resistant, resistant to deformation and cracking, and less susceptible to damage from electric arcs, delivering excellent durability.
● Appearance: 45mm narrow body design greatly saves installation space inside control cabinets.
● Design: Integrated molding eliminates extra accessories. A built-in adjustment knob on the front panel allows direct current regulation and motor start-stop control.
Common Faults & Professional Troubleshooting Methods
The Eaton PKZM0-0.16 is an ultra-low-current MPCB designed for precision micro motor protection. Tiny current faults are difficult to detect by ordinary circuit breakers. Below are the most common field faults and standard troubleshooting solutions for stable long-term operation.
Improve efficiency
1. Frequent nuisance tripping under light load
● Cause: The set micro-current value is lower than the motor's actual operating current.
● Solution: Power off and fine-tune the front adjustment knob. Calibrate the current threshold to match the rated motor current to avoid unnecessary tripping during normal operation.
2. Motor burnout without breaker tripping
● Cause: Long-term three-phase voltage unbalance, hidden phase loss, or current parameter deviation leads to failed protection.
● Solution: Check three-phase power balance and loose wiring. Recalibrate the micro-current setting to restore accurate overload and phase-loss protection.
3. Stiff and unsmooth switch operation
● Cause: Dust accumulation causes mechanical jamming of the miniature internal structure.
● Solution: Clean dust regularly after power off. No disassembly is required, ensuring flexible mechanical operation and longer service life.
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 kind of motors is the PKZM0-0.16 suitable for?
A1: It applies to small three-phase motors with a rated current of 0.1–0.16A.
Q2: What is the difference between it and ordinary circuit breakers?
A2: Standard circuit breakers are mainly for circuit protection, while the PKZM0 series is specially designed for motor protection with more precise response.
Q3: Can it replace thermal relays?
A3: Yes. It can replace the traditional combination of "circuit breaker + thermal relay" in most motor control 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 PKZM0-0.16!
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