MOELLER PKZMO-16

Moeller PKZMO-16 Motor Protection Circuit Breaker Description The Moeller PKZMO-16 is a high-performance motor protection circuit breaker designed for reliable and precise protection of three-phase motors. It features a convenient rotary switch for manual ON/OFF control and a thermal overload release that is adjustable from 10 to 16 Amperes. This device combines both overload and short-circuit protection in a compact, DIN-rail mountable unit, making it an excellent choice for industrial control panels. Built to meet IEC/EN 60947 standards, this breaker ensures high operational safety. The attached NHI-E-11-PKZO provides auxiliary contact functionality. Specifications Manufacturer: Moeller (Part of Eaton) Model: PKZMO-16 Poles: 3-Pole Adjustable Current Range: 10 – 16 A Rated Impulse Withstand Voltage (Uimp): 6000 V Rated Operational Voltage (Ue): up to 690V AC Short-Circuit Breaking Capacity (Icu) at 400V: 50 kA Trip Class: 10 Mounting: DIN Rail Label Info Moeller PKZMO-16 Ser.-No. 04 IEC/EN 60947 Auxiliary Contact: NHI-E-11-PKZO Application This motor protector is ideal for direct-on-line (DOL) starting and protection of AC motors in various industrial applications, including conveyor systems, pumps, fans, and machine tools. Country of Origin Made in Germany. CO2 Impact Opting for this component helps avoid 12.0 kg of CO2 emissions compared to a new purchase, contributing to a more sustainable industrial environment. Availability This product is an obsolete item but is available from our stock. Order now from profideals for expert support and fast delivery. FAQ What is the difference between the Moeller PKZMO-16 and the Eaton PKZM0-16?The Eaton PKZM0-16 is the modern, direct successor to the Moeller PKZMO-16. While functionally very similar, the PKZM0 series features updated internal components, a slightly different form factor, and compliance with the latest electrical standards. Accessories are generally not cross-compatible between the two series. Can this motor protector be used for a single-phase motor?Yes, it can be used for single-phase applications. To do so, you must wire the incoming and outgoing power through all three poles in series to ensure the thermal protection elements heat up evenly and trip correctly based on the motor’s current draw. Refer to the manufacturer’s wiring diagrams for proper connection. What is the fixed short-circuit trip current for this device?The short-circuit trip current for the PKZMO-16 is fixed at 14 times the maximum rated current of the thermal setting. For this 16A model, the magnetic (short-circuit) trip is set at 224A (14 x 16A). This value is not adjustable. profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder. Last Update: Friday, March 13, 2026