Overview
The Allen-Bradley W32 is a thermal overload heater element engineered for industrial motor protection circuits. Rated for 1.42 maximum amps, the W32 is suitable for use with thermal overload relays, magnetic motor starters and motor controls. This lot includes two heater elements, ensuring you have replacement stock on hand for maintenance or emergency repairs. The W32 uses eutectic alloy construction and provides Class 20 operation within Bulletin 500 Line starters.
Key Features
- W Series, Type W thermal overload heater element
- Eutectic alloy type overload relay for Bulletin 500 line starters
- Class 20 operation recommended for general applications
- Compact, lightweight design for easy installation in motor starters
- Lot of 2 provides backup stock for unplanned downtime
Technical Specifications
- Maximum Current Rating: 1.42 A (1.55 A @ Size 00-0; 1.51 A @ Size 1)
- Heater Type: Type W, eutectic alloy
- Series: W Series
- Trip Class: Class 20
- Application: Bulletin 500 line starters and overload relays
- Weight: 0.05 lbs per element
- Quantity: Lot of 2
Typical Applications
The W32 heater element is commonly used in:
- Three-phase induction motor circuits requiring thermal overload protection
- Magnetic motor starters in HVAC systems
- Industrial machinery control circuits rated in the 1.4–1.5 amp range
- General-purpose motor control in manufacturing and process automation
- OEM equipment requiring Bulletin 500 standard overload protection
Compatibility & Replacements
Compatible With
- Bulletin 500 line starters
- Allen-Bradley thermal overload relays (500 series)
- Magnetic motor starters with eutectic alloy overload slots
- Motor control circuits rated 1.42–1.55 A nominal
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The W32 is a standard Type W element in the Allen-Bradley catalog; other W-series elements may be used in the same fixture depending on amperage requirements.
Works With
- Allen-Bradley Bulletin 500 overload relay assemblies
- NEMA-compliant motor control circuits
- Three-phase AC motor protection systems
- Industrial automation control panels using magnetic starters
















