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Motor-protective circuit-breakers PKZ (Accessories)
Motor-protective circuit-breakers PKZ (Accessories)
Motor-protective circuit-breakers from the PKZ series, manufactured by Eaton (Moeller), are specialized devices designed to provide reliable protection for three-phase motors against overloads, short circuits, and phase failures. These compact units combine a thermal overload relay and a magneti...
Motor-protective circuit-breakers PKZ (Accessories)
Motor-protective circuit-breakers from the PKZ series, manufactured by Eaton (Moeller), are specialized devices designed to provide reliable protection for three-phase motors against overloads, short circuits, and phase failures. These compact units combine a thermal overload relay and a magnetic short-circuit release in a single housing, typically rated for currents up to 65 A and voltages up to 690 V AC. They feature adjustable thermal trip settings, high breaking capacity (up to 100 kA at 400 V), and are available in 3-pole configurations. Accessories include auxiliary contact blocks, shunt trips, undervoltage releases, and rotary handle mechanisms, enabling seamless integration into motor control centers and distribution panels.
These accessories are essential for enhancing the functionality and safety of PKZ circuit-breakers in industrial environments. They are commonly installed in motor control centers (MCCs), switchgear assemblies, and automation panels across sectors such as manufacturing, water treatment, HVAC, and material handling. The modular design allows for easy retrofitting and customization, ensuring compliance with international standards like IEC 60947-2 and UL 489. Typical applications include protecting conveyor drives, pumps, compressors, fans, and machine tools, where precise motor protection and operational continuity are critical.
Key subcategories include auxiliary contact blocks (e.g., NHI-E, NHI-PKZ0), shunt trip releases (e.g., A-PKZ0), undervoltage releases (e.g., U-PKZ0), and rotary handle operators (e.g., HR-PKZ0). The article codes for these accessories often follow a pattern like "NHI-PKZ0" for auxiliary contacts or "A-PKZ0" for shunt trips, with suffixes indicating voltage ratings or mounting options. For example, the NHI-E series provides early-make or late-break contacts for signaling, while the HR-PKZ0 series offers door-mounted operating mechanisms for remote switching.
Partnering with Electric Automation Network ensures access to genuine Eaton PKZ accessories with real-time pricing and up to 65% discount compared to list prices. Our engineering team provides tailored technical support for selecting the correct accessories for your motor protection scheme. We offer express worldwide shipping from stock, with documentation including datasheets and wiring diagrams for each item. This minimizes downtime and simplifies procurement for maintenance and project engineers.
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