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Specification & Description
| Specification | Description |
|---|---|
| Part Number | PKZM0-16-T |
| Alternative Part Number | PKZM016T |
| Manufacturer | Moeller |
| Rated Permanent Current (Iu) | 16 A |
| Rated Voltage (Ue) | 690 V |
| Rated Short-Circuit Breaking Capacity (Icu) at 400 V, 50 Hz | 50 kA |
| Overload Release Current Setting | 16 - 16 A |
| Adjustment Range for Short-Term Delayed Short-Circuit Release | 0 - 0 A |
| Adjustment Range for Undelayed Short-Circuit Release | 358 - 358 A |
| Integrated Earth Fault Protection | No |
| Type of Electrical Connection of Main Circuit | Screw Connection |
| Device Construction | Other |
| Suitable for DIN Rail (Top Hat Rail) Mounting | Yes |
| DIN Rail (Top Hat Rail) Mounting Optional | Yes |
| Number of Auxiliary Contacts as Normally Closed Contact | 0 |
| Number of Auxiliary Contacts as Normally Open Contact | 0 |
| Number of Auxiliary Contacts as Change-Over Contact | 0 |
| With Switched-Off Indicator | Yes |
| With Under Voltage Release | No |
| Number of Poles | 3 |
| Position of Connection for Main Current Circuit | Other |
| Type of Control Element | Turn Button |
| Complete Device with Protection Unit | Yes |
| Motor Drive Integrated | No |
| Motor Drive Optional | No |
| Degree of Protection (IP) | IP20 |
The Moeller PKZM0-16-T is a robust transformer-protective circuit breaker designed to safeguard transformers from potential electrical hazards. This three-pole device is engineered to handle a rated uninterrupted current of 16A and is equipped with screw terminals for secure and reliable connections. Its compact design makes it suitable for integration into a variety of industrial control panels, while its compliance with IEC/EN 60947 and VDE 0660 standards ensures high-quality performance and adherence to international safety regulations.
The PKZM0-16-T features a manual turn button for straightforward operation and a switched-off indicator for clear status identification. It is capable of withstanding rated short-circuit breaking capacity of 50kA at 400V, 50Hz, highlighting its capability to manage challenging industrial environments. The device also offers phase-failure sensitivity as per IEC/EN 60947-4-1, VDE 0660 Part 102, providing additional protection against phase loss which is critical for transformer applications.
Designed with flexibility in mind, the PKZM0-16-T can be easily mounted onto a DIN rail, making it a versatile choice for electrical installations. Its IP20 degree of protection ensures that the device is safeguarded against the ingress of solid objects, adding to its durability and longevity in demanding settings. The circuit breaker does not include an integrated earth fault protection, which allows for customised protection schemes to be implemented as required by the specific application.
Overall, the Moeller PKZM0-16-T is a reliable and efficient solution for transformer protection, offering precise overload and short-circuit settings to ensure the safety and operational continuity of electrical systems.
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 purpose of this circuit breaker?
This circuit breaker is designed to protect transformers from overloads and short circuits, particularly those with high inrush currents. It's suitable for industrial applications where transformer protection is critical.
Can this circuit breaker be used with motors?
Yes, the PKZM0-16-T is also suitable for protecting motors, including those with efficiency class IE3, ensuring safe operation under various load conditions.
What are the mounting options for this circuit breaker?
The circuit breaker can be snapped onto IEC/EN 60715 top-hat rails with either 7.5 or 15 mm height, providing a secure and reliable installation method for electrical panels.
What is the rated operational voltage for this device?
The rated operational voltage (Ue) for this device is 690 V AC, making it suitable for a wide range of industrial applications.
What is the temperature compensation range for this circuit breaker?
The temperature compensation range for this circuit breaker is from -5°C to 40°C, with a residual error for temperatures above 40°C of ≤ 0.25 %/K.
What is the degree of protection offered by this circuit breaker?
The circuit breaker offers a degree of protection of IP20 for the device and IP00 for the connection terminals, providing protection against solid objects but not against water.
What is the short-circuit breaking capacity of this circuit breaker?
The short-circuit breaking capacity of the PKZM0-16-T at 400 V, 50 Hz is 50 kA, which indicates its ability to safely interrupt fault currents without damage.
How many poles does this circuit breaker have?
This circuit breaker is a three-pole device, which means it can control and protect three-phase electrical circuits.
Is there a visual indicator for the switched-off state?
Yes, the circuit breaker is equipped with a switched-off indicator, which provides a visual confirmation of the device's status.
What certifications does this circuit breaker hold?
The circuit breaker is certified by VDE 0660 and IEC/EN 60947, ensuring compliance with international safety and performance standards.
Part conditions explained
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