Overview
The Allen-Bradley W35 is a thermal overload heater element from the W Series line, engineered for use with Bulletin 500 Series motor starters and overload relays. This Type W heater element uses eutectic alloy technology to deliver Class 20 trip operation, making it ideal for general motor protection applications where standard overload protection is required.
Key Features
- Eutectic Alloy Construction: Provides precise, consistent trip performance across multiple cycles
- Class 20 Trip Rating: Delivers reliable thermal protection for motors rated near the element’s nominal amps
- Bulletin 500 Compatibility: Designed specifically for 500 Series NEMA motor starters
- Manual Reset Type: Standard reset configuration for safety-critical applications
- Compact Design: Drop-in replacement—no modifications to existing motor control circuits required
Technical Specifications
- Series: W (Type W Heater Elements)
- Rated Current (Size 00–0): 1.97 amps maximum
- Rated Current (Size 1): 1.96 amps maximum
- Trip Class: Class 20
- Relay Type: Eutectic Alloy Overload Relay
- Reset: Manual
- Suitable Starter Line: Bulletin 500
- Weight: 0.50 lbs
- UPC: 781180153761
Typical Applications
The Allen-Bradley W35 heater element is commonly used in:
- General-purpose three-phase AC motor protection circuits
- NEMA motor starters and thermal overload relay assemblies
- Bulletin 500 Series magnetic motor control panels
- Industrial machinery requiring standard thermal overload protection
- Maintenance replacements in existing Bulletin 500 starter installations
Compatibility & Replacements
Compatible With
- Bulletin 500 Series motor starters (all sizes 00–3)
- Allen-Bradley thermal overload relays (500 line)
- NEMA-rated magnetic motor starters
- Standard three-phase AC motor circuits (480V, 240V, 120V)
Replaces / Drop-In Replacement For
- Original Allen-Bradley W35 elements in existing 500 Series starters
- OEM replacement for Rockwell Automation motor control assemblies
- Direct substitute in any Bulletin 500 starter requiring a 1.9–2.0 amp nominal heater
Works With
- Bulletin 500 Series NEMA motor starters and controllers
- Allen-Bradley 500 Line overload relay assemblies
- Standard three-phase AC motor applications
- Manual and magnetic motor control circuits
