What is Eaton PKZM0-20 Circuit Breaker?
The Eaton PKZM0-20 is a 3-pole DIN rail motor protector from the Eaton xStart series, widely used for motors around 9kW in factory automation. Its front rotary knob allows continuous current adjustment from 16A to 20A, making it ideal for three-phase motors up to 9kW under 400V working conditions. It integrates overload, short-circuit and phase-loss protection in one unit, eliminating the need for separate fuses and thermal relays. It is an ideal choice for new machine assembly, old production line retrofits, and direct replacement of original Moeller equivalents.

Why lots of industrial technicians choose the PKZM0-20
● The PKZM0-20 is calibrated specifically for motor operating characteristics. It easily withstands high inrush starting current and won't trip accidentally during normal startup, shutdown or minor load fluctuations. It only cuts power to protect the circuit when overload or short-circuit faults actually occur.
● It features a wide adjustable current range of 16–20A. Current setting is straightforward via the front rotary knob with no need to open the casing, easy enough even for new operators.
● It fits standard DIN35 mounting rails - simply clip it into place without drilling or cabinet modifications.

Eaton PKZM0-20 Technical Specifications
● Model:Eaton PKZM0-20
● Adjustable rated current range: 16A ~ 20A
● Tripping type: Thermal-magnetic trip (long time delay for overload, instantaneous for short circuit)
● Rated operational voltage: 690V AC
● Number of poles: 3 poles
● Mounting method: Standard DIN 35mm rail mounting
● Trip class: Class 10

Typical Application Scenarios
The Eaton PKZM0-20 is widely used for three-phase motor protection in various industrial automation devices. Typical applications include conveyor motors, fans, water pumps, air compressors, packaging machinery, refrigeration equipment, old production line retrofits, and control cabinets for exported complete equipment.
Advantages of Purchasing PKZM0-20 from Us
Improve efficiency
● Genuine authentic goods with consistent reliable quality.
● Small single orders are accepted, competitive prices for bulk purchases, and reliable after-sales support.
● Fast order delivery, with dedicated customer service assigned to assist you.
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 size three-phase motor is compatible with the PKZM0-20?
A1: Under the rated voltage of 400V, it suits three-phase asynchronous motors up to 9kW with an adjustable setting current range of 16–20A. It works perfectly for common 7.5kW and 9kW motors.
Q2: Can accessories be mounted on the PKZM0-20?
A2: Yes. Matching auxiliary contacts, shunt trips and undervoltage releases from the same series can be fitted directly with easy installation and removal, meeting the needs of cabinet signal feedback and remote power cut-off.
Q3: What does trip class Class 10 stand for?
A3: It is a dedicated tripping standard for motors. It tolerates the brief high inrush current during motor startup to prevent unwanted tripping upon power-on, a feature that ordinary household circuit breakers do not have.
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 PKZM0-20!
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