Overview
The Square D B32 thermal overload heater element is an essential component for protecting electric motors and industrial equipment from overload conditions. This lot includes three heater units, providing spare inventory for maintenance teams and system integrators. Each element is designed for plug-in mounting in Square D thermal overload relays and magnetic motor starters used in factory automation, HVAC systems, and general motor control applications.
Key Features
- Type B thermal protection with melting alloy sensing mechanism for reliable trip performance
- Current rating: 17.4–23.1 amps (standard thermal overload class)
- Plug-in design for rapid installation and replacement in existing motor control circuits
- Suitable for both single-phase and three-phase motor applications
- Lot of 3 units reduces downtime by keeping spares readily available
- Square D OEM quality and proven industrial durability
Technical Specifications
- Heater Type: B32 / B32.0
- Sensing Method: Melting alloy
- Current Rating: 17.4–23.1 amps
- Trip Class: Standard (Class 10)
- Mounting: Plug-in
- Quantity Per Order: 3 units
- Brand: Square D (Schneider Electric)
Typical Applications
- Magnetic motor starters and contactor assemblies
- Industrial motor circuit protection
- HVAC compressor and fan motor control
- Pump and conveyor drive protection
- General-purpose motor overload sensing in control panels
Compatibility & Replacements
Compatible With
- Square D thermal overload relays (Class 10 standard trip)
- Square D magnetic motor starters and contactor assemblies
- Class 8711 and Class 8911 thermal overload configurations
- Standard 3-phase motor control circuits
- Single-phase and three-phase motor protection schemes
Replaces / Drop-In Replacement For
- Square D B32 heater units in existing starters and overload relays
- Direct replacement for worn or tripped heater elements
- Verify compatibility with your specific motor starter model number before ordering
Works With
- Square D Class 8711 thermal overload relays
- Square D Class 8911 thermal overload relays
- Square D Nema and IEC magnetic motor starters
- Standard thermal trip coordination curves and motor protection charts
