Overview
The Moeller PKZM0-2.5 is a compact three-pole motor protective circuit breaker engineered for industrial control panels, machinery drive circuits, and production automation. This device combines short-circuit and overload protection in a single DIN rail-mounted unit, eliminating the need for separate protective devices and reducing panel space requirements. Built to IEC/EN 60947-4-1 standards, the PKZM0-2.5 provides reliable motor branch circuit protection in 380V–690VAC applications.
Key Features
- Three-pole configuration for three-phase motor protection
- Adjustable overload release 1.6–2.5A (trip-class A per IEC 60947-4-1)
- Rotary handle with manual trip capability for easy operation
- Screw terminal connections for industrial wiring
- DIN rail mounting for standard control cabinet integration
- Rated for 690VAC, 250VDC (250V impulse withstand)
Technical Specifications
- Current Rating: 2.5A nominal (1.6–2.5A adjustable overload range)
- Poles: 3-pole
- Voltage Rating (AC): 690VAC
- Voltage Rating (DC): 250VDC
- Mounting: DIN rail
- Connection Type: Screw terminals
- Handle Mechanism: Rotary, manual trip
- Tripping Characteristic: Class A (motor protection per IEC 60947-4-1)
- Degree of Protection: IP20
- Weight: Approximately 0.74 lbs (335 grams)
- Standards: IEC/EN 60947-4-1, UL 60947-4-1, CSA C22.2 No. 60947-4-1-14
Typical Applications
- Machine tool motor control and protection
- Centrifugal pump and fan motor circuits
- Conveyor and material-handling equipment
- Automated assembly and packaging systems
- Industrial refrigeration and HVAC compressor protection
- Production line component branch circuits
Compatibility & Replacements
Compatible With
- Three-phase AC power distribution systems up to 690VAC
- Standard industrial DIN rail control cabinets (35 mm rail)
- Motor control centers and distribution panels
- Eaton/Moeller starter and contactor systems
- IEC-compliant motor branch circuit protection schemes
Replaces / Drop-In Replacement For
- PKZM1-2.5
- PKZM1-2.5-NA
- PKZM0-2.5-NA
Works With
- Eaton Moeller auxiliary contacts and trip-indicator accessories
- Shunt release and undervoltage release modules (optional)
- Standard motor protection relay systems
- Industrial control software and motor management platforms
