ABB E91/32 Fuse Switch Disconnector

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• 1. Product Overview

  ABB E91/32 Fuse Switch Disconnector is a key protection device in low-voltage distribution systems, integrating switch and fuse functions. It is used to disconnect circuits and protect equipment from overload and short-circuit damage. The device features compact design and easy operation, suitable for industrial, commercial, and infrastructure power distribution.

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  2. Technical Specifications

  • Model: E91/32

  • Product Type: Fuse Switch Disconnector

  • Rated Current: 32 A

  • Rated Operational Voltage (Ue): 400 V AC

  • Poles: 3P (Three-phase)

  • Short-Circuit Breaking Capacity: 35 kA (depending on fuse type)

  • Mounting Method: DIN rail or panel mounting

  • Operation: Manual rotary knob

  • Protection Degree: IP20 / IP40 (depending on installation)

  • Compatible Fuse Type: NH 00, 000 fuses

  • Operating Temperature: -25 °C to +40 °C

  • Standards: IEC 60947-3

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  3. Key Advantages and Features

  • Integrated Protection: Combines switching and fuse functions for reliable circuit protection

  • Easy Operation: Manual rotary knob is intuitive and simple to use

  • High Reliability: Industrial-grade design ensures long-term safe operation

  • Compact Design: Saves space in distribution panels

  • Flexible Installation: Supports DIN rail or panel mounting

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  4. Typical Applications

  • Industrial low-voltage distribution systems

  • Commercial building power distribution and control

  • Motor and power load protection

  • Distribution boards and switchgear

  • Infrastructure power supply and maintenance systems

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  5. Installation and Usage Notes

  • Confirm rated current, fuse type, and circuit requirements before installation

  • Ensure the switch disconnector is de-energized during installation

  • Do not exceed rated breaking capacity

  • Maintain ventilation to prevent overheating

  • Periodically inspect operation mechanism and fuse condition

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