Overview
The Allen-Bradley W32 thermal overload relay heater element is a eutectic alloy type heater designed for thermal overload relays used in Bulletin 500 line starters. This heater element provides Class 20 trip protection and is rated at 1.42 amps, making it suitable for motor control applications in sizes 00-0 and Size 1 starters. The W32 delivers reliable overcurrent protection in industrial automation, HVAC, and process control systems.
Key Features
- Eutectic alloy construction for precise thermal characteristics
- Class 20 trip protection for general industrial applications
- 1.42 amp current rating
- Compatible with Bulletin 500 line starters and overload relays
- Drop-in replacement heater element for thermal overload relays
- Lightweight and compact form factor
Technical Specifications
The W32 heater element is engineered for precise thermal response in motor protection circuits. Key technical data:
- Current Rating: 1.42 amps
- Heater Type: Type W (eutectic alloy)
- Trip Class: Class 20
- Application Size: Size 00-0 and Size 1 motor starters
- Series: Bulletin 500 Line
- Weight: Approximately 0.05 lbs
- Condition: New in Box
Typical Applications
- Motor starter thermal overload protection circuits
- Industrial automation control cabinets
- HVAC and refrigeration compressor protection
- Machine tool motor controls
- Process control and manufacturing equipment
- General industrial electrical distribution systems
Compatibility & Replacements
Compatible With
- Allen-Bradley Bulletin 500 line starters and contactors
- Thermal overload relay assemblies (sizes 00-0 and 1)
- Magnetic motor starters with thermal protection
- Motor control circuits requiring Class 20 protection
Replaces / Drop-In Replacement For
- Original equipment manufacturer (OEM) W32 heater elements
- Equivalent Type W heater elements rated 1.42 amps
- Legacy or discontinued overload relay heater cartridges with matching specifications
Works With
- Allen-Bradley overload relays and thermal protection devices
- Standard motor control circuits and starters
- Traditional industrial control systems (non-networked)
- Mechanical and electromechanical control panels
