ABB EOT45U3P3-S Enclosed Switch Disconnector

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1. Product Overview

The ABB EOT45U3P3-S Enclosed Switch Disconnector is a low-voltage enclosed isolating switch designed for safe switching and isolation in power distribution systems. It combines load switching and isolation functions, providing a clear and visible disconnection point for maintenance. With a robust enclosure and reliable contact system, it is well suited for industrial and commercial applications.

2. Main Technical Parameters (Typical)

Rated Data

• Rated operational voltage (Ue): up to 690 V AC

• Rated insulation voltage (Ui): 690 V

• Rated frequency: 50 / 60 Hz

• Rated operational current (Ie): 45 A

Poles and Design

• Number of poles: 3P (three-pole)

• Operating mechanism: Rotary handle operation

• Isolation function: Clear and reliable isolating position

Enclosure and Protection

• Enclosure type: Enclosed

• Degree of protection: IP65 (typical)

• Enclosure material: High-strength insulating plastic, impact and aging resistant

Electrical Performance

• Utilization category: AC-23A (motor and mixed loads)

• Short-time withstand capability: Suitable for low-voltage distribution systems

• Contact system: High-reliability silver alloy contacts

Mounting

• Wall-mounted or panel mounting

• Cable entry: Multi-directional cable access

Safety Features

• Lockable handle in OFF position

• Anti-misoperation design for maintenance safety

3. Advantages and Features

• Reliable isolation for safe maintenance

• High protection enclosure for harsh industrial environments

• Strong load switching capability suitable for motor circuits

• Compact and easy installation

• Clear ON / OFF indication via rotary handle

• Proven ABB quality with high reliability

4. Typical Applications

• Industrial power distribution systems

• Motor supply isolation and control circuits

• Main power isolation for machinery

• HVAC systems

• Commercial buildings and infrastructure

• Maintenance isolation points in factories

5. Application Notes

• Select ratings according to actual load current and voltage

• Ensure the utilization category matches the load type

• Always disconnect upstream power before installation

• Tighten terminals with the specified torque to prevent overheating

• Verify enclosure protection level for outdoor or humid locations

• Perform periodic inspection of operating mechanism and connections

The structure and details of the product：

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