ABB 2CSM204753R1801 Fuse Switch Disconnector

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1. Product Overview

The ABB 2CSM204753R1801 is a Fuse Switch Disconnector (FSD) designed for overcurrent, short-circuit protection, and manual isolation in low-voltage power distribution systems. It combines fuse protection and manual isolation in a single compact device, providing safe and reliable operation for industrial, commercial, and infrastructure applications.

2. Technical Specifications

• Model: 2CSM204753R1801

• Rated Current (In): 63 A

• Rated Operational Voltage (Ue): 690 V AC

• Rated Insulation Voltage (Ui): 1000 V AC

• Poles: 3P (Three poles)

• Rated Short-Circuit Breaking Capacity (Ics): 50 kA

• Fuse Type: gG / aM

• Mounting: Panel or DIN rail mounting

• Operation: Manual handle ON/OFF with lock

• Mechanical Life: ≥ 10,000 operations

• Electrical Life: ≥ 2,500 operations

• Degree of Protection: IP20

• Ambient Temperature: -25℃ to +60℃

• Dimensions: 210 × 105 × 85 mm

3. Key Features & Advantages

1. Combined protection and isolation — Fuse provides short-circuit/overload protection while handle allows manual isolation, saving space.

2. High breaking capacity — Up to 50 kA, suitable for industrial high short-circuit currents.

3. Safe and reliable — Lockable handle prevents accidental operation; clear isolation status.

4. Flexible installation — Panel or DIN rail mounting suitable for various distribution setups.

5. Easy maintenance — Quick replacement of fuses reduces downtime.

6. Durable design — High mechanical and electrical life, suitable for frequent operation.

7. Wide application — Industrial plants, building distribution, infrastructure, motor and machine protection.

4. Typical Applications

• Industrial plant power distribution

• Commercial and office building low-voltage distribution

• Power and infrastructure equipment protection

• Motor and machinery protection

• Isolation and short-circuit/overload protection

• Panel and control cabinet installation

5. Precautions & Recommendations

1. Confirm rated current and fuse type before installation to ensure safe operation.

2. Replace fuses only in power-off condition to ensure safety.

3. Avoid high humidity, dust, or corrosive environments; provide enclosure protection if necessary.

4. Ensure handle is fully engaged when switching to avoid poor contact.

5. Periodically check fuse condition and wiring tightness for reliable operation.

6. Installation and maintenance should be performed by qualified personnel.

The structure and details of the product：

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