Overview
The Allen-Bradley N9 overload heater element is a eutectic alloy thermal protection component for use with N-series overload relays and motor starters. This Type N heater provides Class 20 protection, making it ideal for general motor protection applications across industrial automation systems. The Allen-Bradley N9 is part of the legacy N-series lineup and remains a reliable drop-in replacement for existing thermal overload relay circuits.
Key Features
- Eutectic alloy construction for precise thermal response and repeatability
- Class 20 protection rating suitable for standard motor applications
- Type N design for compatibility with Bulletin 700 line starters
- Rated at 1.26 amperes for Size 00-1 starters
- Direct fit for N-series thermal overload relay blocks
- New in box condition with factory specifications intact
Technical Specifications
The N9 heater element operates within established thermal parameters for industrial motor starter applications. The eutectic alloy construction ensures consistent trip points and thermal stability across the operating range. Class 20 operation is recommended for general-purpose motor applications without special load characteristics. For applications with high-inertia loads or short locked rotor time motors, alternative Class 10 or Class 30 heater selections may be required.
Typical Applications
- General-purpose AC motor control and thermal protection
- Industrial machinery motor starters and contactors
- Manufacturing automation systems requiring overload protection
- HVAC and compressed air motor applications
- Replacement units for existing Bulletin 700 line starters
Compatibility & Replacements
Compatible With
- Allen-Bradley Bulletin 700 line motor starters
- N-series thermal overload relay blocks
- Size 00-1 motor starter frames
- Standard AC motor protection circuits
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The N9 is designated as part of the N-series heater element line and may replace earlier heater units in legacy systems—confirm your exact model and frame size with your documentation.
Works With
- Allen-Bradley N-series thermal overload relay assemblies
- Magnetic motor starters with heater block cavities
- Industrial control panels using eutectic alloy thermal protection
- Standard 50/60 Hz motor applications
