Overview
The Allen-Bradley 1491-N266 fuse block is a three-pole, 600-volt circuit protection device rated for 31–60 ampere operation. Designed for general-purpose industrial applications, this Class H/J fuse block provides dependable overcurrent protection across three-phase systems. Built with a rugged phenolic or porcelain base, the 1491-N266 delivers durable service in control panels, motor starter circuits, and power distribution applications commonly found in manufacturing and automation environments.
Key Features
- Three-pole configuration for three-phase circuit protection
- 600-volt AC rated for industrial power systems
- Accepts Class H/J fuses (31–60 ampere range)
- Phenolic or porcelain base construction for durability
- Easy mounting and wiring design
- CSA certified for North American compliance
Technical Specifications
- Voltage Rating: 600V AC
- Amperage Range: 31–60A
- Poles: 3
- Fuse Class: Class H/J
- Base Material: Phenolic or Porcelain
- Certifications: CSA C22.2 No. 14
- Application: General Purpose
- Condition: New in Box
Typical Applications
- Three-phase motor starter and control circuits
- Industrial automation and machinery protection
- Main and branch circuit fusing in control panels
- Manufacturing and processing equipment power distribution
- General electrical system overcurrent protection
Compatibility & Replacements
Compatible With
- Class H and Class J fuse standards
- Three-phase industrial control systems
- Allen-Bradley motor starters and control devices
- General-purpose 600V AC power circuits
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering to confirm replacement eligibility with legacy fuse block models.
Works With
- Class H fuses (blade-type, 300V/600V rated)
- Class J fuses (rejection-type, 600V rated)
- Standard three-phase 600V distribution systems
- Allen-Bradley Bulletin 1491 family components
