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Specification & Description
| Specification | Description |
|---|---|
| Part Number | PKZM0-20 |
| Alternative Part Number | PKZM020 |
| Manufacturer | Moeller |
| Poles | 3 |
| Adjustable Current Range | 16 to 20 A |
| Rated Operating Voltage | 690 V |
| Mounting Type | DIN Rail Mount |
| Short-Circuit Breaking Capacity | 50 kA |
| Terminal Type | Screw Terminal |
| Phase Failure Sensitivity | Yes |
| Switch Off Technique | Thermomagnetic |
| Rated Operation Power at AC-3 | 230 V: 5.5 kW, 400 V: 9 kW |
| Degree of Protection | IP20 |
| Dimensions (H x W x D) | 93 mm x 45 mm x 76 mm |
| Certifications | CSA-C22.2 No. 60947-4-1-14, CE, UL 60947-4-1, IEC/EN 60947-4-1, CSA Class No.: 3211-05, VDE 0660 |
The Moeller PKZM0-20 Motor Protective Circuit Breaker is a robust and reliable solution designed to safeguard motors in industrial settings. This three-pole breaker is engineered to handle currents ranging from 16 to 20 A and can operate at voltages up to 690 V. Its DIN Rail mount design allows for easy installation within control panels, and the screw terminal connections ensure secure wiring and long-term stability.
With a high short-circuit breaking capacity of 50 kA, the PKZM0-20 provides exceptional protection against overloads and short-circuits, ensuring that your motor and associated equipment are shielded from potential damage. The device is also phase-failure sensitive, adhering to IEC/EN 60947-4-1 standards, which adds an extra layer of security in the event of an uneven distribution of power across phases.
The circuit breaker's compact form factor, with dimensions that facilitate integration into existing systems, makes it an ideal choice for a variety of applications. Its IP20 degree of protection ensures that the device is safeguarded against the ingress of solid objects, enhancing its durability in challenging environments.
Manufactured with high-quality materials, the PKZM0-20 is designed to withstand the rigours of industrial use. Its temperature compensation feature ensures reliable operation across a broad range of ambient temperatures, maintaining performance even in extreme conditions.
Whether you're looking to protect motors in manufacturing, processing, or any other heavy-duty industrial application, the Moeller PKZM0-20 Motor Protective Circuit Breaker is a dependable choice that offers both performance and peace of mind.
Commonly Asked Questions
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Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Frequently Asked Questions
What is the function of this motor protective circuit breaker?
The motor protective circuit breaker is designed to provide protection for motors by combining short-circuit and overload protection. It safeguards the motor by interrupting the electrical supply in the event of a fault, preventing damage to the motor.
Can this circuit breaker be used with motors of efficiency class IE3?
Yes, this circuit breaker is suitable for use with motors of efficiency class IE3, ensuring compatibility with modern, energy-efficient motors.
What is the rated operational voltage for this device?
The rated operational voltage for the PKZM0-20 is 690 V, making it suitable for a wide range of industrial applications.
What are the installation requirements for this circuit breaker?
This circuit breaker can be snapped onto IEC/EN 60715 top-hat rail with either 7.5 or 15 mm height, allowing for flexible and easy installation in various setups.
What is the protection rating of this circuit breaker?
The device has a protection rating of IP20, indicating that it is protected against solid objects larger than 12.5 mm but not against water.
Is the circuit breaker phase failure sensitive?
Yes, the circuit breaker is phase failure sensitive according to IEC/EN 60947-4-1, VDE 0660 part 102, which means it can detect and respond to a loss of one phase in the motor supply, providing additional protection.
What is the setting range for the overload releases?
The setting range for the overload releases of this circuit breaker is 16 to 20 A, allowing for adjustment to match the protection requirements of the connected motor.
What is the short-circuit release rating for this device?
The short-circuit release rating for this device is fixed at a maximum of 310 A, providing robust protection against short-circuit conditions.
How does the ambient temperature affect the circuit breaker?
The circuit breaker is designed with temperature compensation and can operate within an ambient temperature range of -25 to 55 °C when open, and -25 to 40 °C when enclosed.
What type of terminal connections does this circuit breaker have?
The circuit breaker features screw terminal connections, which are widely used for secure and reliable electrical connections.
Part conditions explained
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