Overview
The Moeller PKZM0-20-T is a DIN rail mounted manual motor starter and protector rated 16–20 amperes. Manufactured by Eaton Cutler-Hammer under the Moeller product line, this unit provides reliable thermal and magnetic motor protection with manual on/off control via rotary handle. The -T variant features enhanced magnetic trip settings suitable for high-efficiency motors with elevated inrush currents.
Key Features
- Adjustable current range: 16–20 amperes with adjustable bi-metal thermal trip (0.6–1.0 times full load amps)
- Class 10 tripping characteristic: Motor trip response in 10 seconds or less under fault conditions
- Fixed magnetic trip: 20× rated uninterrupted current for premium efficiency motors with higher inrush starting currents
- Protection modes: Phase loss and phase imbalance protection, plus ambient temperature compensation
- UL and CSA certified: Type E self-protected motor controller listing
- Manual operation: Rotary operated on/off handle with screw terminals
Technical Specifications
- Current Rating: 16–20 A (adjustable)
- Tripping Class: Class 10
- Mounting: DIN rail
- Thermal Trip Range: 0.6–1.0 × FLA
- Magnetic Trip: 20× rated uninterrupted current
- Control: Rotary manual on/off handle
- Terminals: Screw terminal connections
- Certifications: UL, CSA Type E self-protected motor controller
- Series: PKZM0
Typical Applications
The PKZM0-20-T is suited for:
- Decentralized motor control in industrial automation systems
- General-purpose AC induction motor protection (fractional to ~3 HP equivalent)
- Local manual start/stop control without remote operation requirements
- Control cabinet and equipment enclosure installations
- Premium-efficiency or high-inrush motors requiring enhanced magnetic trip protection
Compatibility & Replacements
Compatible With
- DIN rail mounting systems (standard 35 mm)
- DILM 3-pole contactors (for combination starter configuration)
- Eaton Moeller auxiliary contact modules (front and side mounted)
- IP65 rated surface mount enclosures
- Rotary disconnect handles and door coupling hardware
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The PKZM0 series offers interchangeable parts across current ratings, but direct replacements depend on your specific installation voltage, current, and control requirements.
Works With
- Eaton DILM frame size B contactor (for remote-controlled combination starters)
- Moeller auxiliary contact modules (NHI-E and 2-pole variants)
- Under-voltage trip and phase-loss protection modules
- Manual rotary disconnect handles and IP65 enclosures
- Standard three-phase motor circuits (IEC/EN 60947-1 compliance)
