Overview
The Eaton WMS1D06 supplementary protector circuit breaker delivers reliable overcurrent protection for control and branch circuits. Engineered for applications requiring closer protection than standard feeder breakers, the WMS1D06 combines proven thermal-magnetic switching with UL 1077 recognition to safeguard sensitive equipment and control panels. This single-pole, 6-amp unit features a D-curve tripping profile suited for moderate inrush loads.
Key Features
- Single-pole configuration for standard 120V AC circuits
- 6-ampere thermal-magnetic trip rating with D-curve characteristics
- UL 1077 recognized supplementary protector per NEC 240.10 compliance
- Compact miniature design fits tight panel spaces
- Current-limiting thermal-magnetic mechanism reduces fault let-through energy
- Temperature-compensated bimetallic element for consistent performance
Technical Specifications
- Manufacturer: Eaton (Cutler-Hammer)
- Model Number: WMS1D06
- Rated Current: 6 amperes
- Poles: 1 (single-pole)
- Voltage Rating: 120V AC / 65V DC
- Tripping Curve: D-Curve (moderate inrush tolerance)
- UL/CSA Recognition: UL 1077, CSA C22.2 No. 235
- Interrupting Rating: 10 kA @ 120VAC, 65VDC
- Mechanism Type: Thermal-magnetic
- Standards Compliance: NEC 240.10 (supplementary protection only)
Typical Applications
- Control circuit and equipment protection in industrial panels
- Backup protection for sensitive electronic loads
- Branch circuit protection where feeder breaker coordination is desired
- Heating, air conditioning, and refrigeration equipment circuits
- Internal and external receptacle circuits in commercial installations
- Motor control and automation system panels
Compatibility & Replacements
Compatible With
- Eaton Cutler-Hammer panelboards and enclosures with 1-pole clip mounting
- Standard DIN-rail mounted control systems
- IEC 60898 compliant equipment (outside North America)
- CE-marked industrial control circuits (international applications)
- 120V AC single-phase circuits up to 6 amperes
Replaces / Drop-In Replacement For
- Eaton WMS1D06 (model refresh)
- Verify compatibility with your system integrator before ordering.
Works With
- Eaton FAZ miniature circuit breaker series (compatible backup protection)
- Eaton WMZT branch circuit breaker series (upstream coordination)
- IEC EN/IEC 60898 and EN/IEC 60947-2 compliant systems
- NEC Article 240 overcurrent protective device requirements
- Thermal-magnetic protective relay systems


















