Overview
The Allen-Bradley W38 thermal overload heater element is a Class 20 eutectic alloy Type W component engineered for use in industrial motor control systems. Designed to work with Bulletin 500 Line Starters, this heater element provides dependable thermal overload protection for magnetic motor starters and motor controls across standard industrial applications. The W38 is a direct replacement component for maintaining continuity in existing thermal overload relay systems.
Key Features
- Type W eutectic alloy construction for precise thermal response
- Class 20 trip classification for standard industrial duty cycles
- Compatible with Bulletin 500 Line Starters and thermal overload relays
- Current ratings: 2.59 amps (Size 00-0), 2.60 amps (Size 1)
- Manual reset configuration for override control
- Lightweight design at 0.05 lbs per element for easy installation
Technical Specifications
- Type: Heater Element, Type W
- Trip Class: Class 20
- Thermal Construction: Eutectic Alloy
- Current Rating (Size 00-0): 2.59 amps
- Current Rating (Size 1): 2.60 amps
- Reset Type: Manual
- Weight: 0.05 lbs
- Series: W Series
- Quantity: Lot of 10
Typical Applications
- Replacement heater elements for thermal overload relays in motor control centers
- Protection in magnetic motor starters for NEMA control applications
- General-purpose industrial motor starting and protection circuits
- Bulletin 500 Line Starter systems requiring thermal overload protection
Compatibility & Replacements
Compatible With
- Allen-Bradley Bulletin 500 Line Starters
- Thermal overload relays with Type W heater element sockets
- Magnetic motor starters (NEMA standard)
- Motor control systems with eutectic alloy overload protection
Replaces / Drop-In Replacement For
- Original W38 heater elements in existing thermal overload relay assemblies
- Worn or damaged Type W eutectic elements in Bulletin 500 systems
Works With
- Thermal overload relay systems using manual reset configuration
- Class 20 overload protection networks
- Industrial motor control circuits complying with NEMA standards
