Overview
The Allen-Bradley N18 heater element is a critical thermal protection component designed for use in motor starters and industrial automation control systems. This eutectic alloy type overload relay element provides Class 20 thermal protection and is compatible with the Bulletin 700 line of starters and contactors. Though discontinued by the manufacturer, the N18 remains widely used in legacy and maintained industrial systems.
Key Features
- Eutectic alloy thermal element for reliable, consistent trip performance
- Class 20 overload protection classification
- Compact design fits directly into Bulletin 700 motor starters
- Rated for 2.97 amps at size 00-1 configuration
- N-series heater element with type N construction
- New condition, unboxed for immediate use
Technical Specifications
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Part Number: N18
- Type: Eutectic Alloy Overload Heater Element
- Series: N Series
- Thermal Classification: Class 20
- Rated Current: 2.97 amps (at size 00-1)
- Construction: Type N heater element
- Mounting: Integral terminal pins for Bulletin 700 starters
- Weight: 0.05 lbs
- Condition: New (No Original Box)
- Status: Discontinued by manufacturer, surplus stock available
Typical Applications
The Allen-Bradley N18 heater element is used in:
- Thermal overload relay protection in motor starters and contactors
- Bulletin 700 magnetic motor starter assemblies
- Industrial automation and process control systems requiring motor protection
- Factory and facility maintenance and replacement programs
- Legacy system support and troubleshooting
Compatibility & Replacements
Compatible With
- Bulletin 700 line motor starters and contactors
- Allen-Bradley thermal overload relay assemblies (size 00-1)
- Industrial AC/DC motor control circuits operating at standard industrial voltages
Replaces / Drop-In Replacement For
The N18 heater element is a direct replacement for OEM Bulletin 700 starter assemblies that specify the N18 part number. Verify your existing starter documentation for heater element model before ordering.
Works With
- Thermal overload relay contact assemblies (Bulletin 700 series)
- Standard industrial electrical enclosures and motor control centers (MCCs)
- General-purpose AC induction motor applications
