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2CDD281101R0050 ABB SD201/50 Switch Disconnector 1P 50 A
ABB SD201/50 is a compact single-pole 50 A switch disconnector rated at 253 V AC for dependable manual load switching and isolation in low-voltage electrical distribution systems.
£16.32
Why Choose the ABB SD201/50 Switch Disconnector?
The ABB SD201/50 is a compact and reliable single-pole switch disconnector designed for manual switching and safe isolation of low-voltage electrical circuits. As part of the ABB SD200 switch disconnector series, it provides dependable load switching and disconnection for residential, commercial and industrial electrical distribution applications.
The SD201/50 combines switching and isolation functionality in a compact modular format. Its clearly operated toggle provides ON/OFF position indication and can be sealed in both positions, helping provide controlled circuit isolation for maintenance while allowing normal switching of connected loads.
With a 50 A rated current, 253 V AC rated operational voltage and 25 kA conditional short-circuit current, the SD201/50 provides robust performance for single-phase electrical distribution. Its 17.5 mm single-module width and DIN-rail mounting make it straightforward to integrate into distribution boards and control panels.
Key Advantages
- Compact single-pole switch disconnector for manual switching and isolation.
- 50 A rated current for residential, commercial and industrial circuits.
- 253 V AC rated operational voltage suitable for single-phase low-voltage systems.
- 25 kA conditional short-circuit current when used with appropriate upstream protection.
- AC-23A utilisation category supports load-switching applications.
- Sealable operating toggle supports controlled circuit isolation.
- Compact 17.5 mm single-module design for DIN-rail distribution equipment.
Key Features
- ABB SD200 switch disconnector series.
- Single-pole (1P) configuration.
- 50 A rated current.
- 253 V AC rated operational voltage.
- 60 V DC rated operational voltage.
- 50/60 Hz rated frequency.
- AC-23A utilisation category for AC switching.
- DC-21A utilisation category for DC switching.
- 25 kA conditional short-circuit current.
- IP20 degree of protection.
- DIN-rail mounting for modular electrical distribution assemblies.
Reliable Switching and Safe Circuit Isolation
Switch disconnectors such as the ABB SD201/50 provide both manual load switching and an isolation function. When the device is placed in the open position, downstream electrical equipment can be isolated from the supply, supporting safer inspection and maintenance procedures when the installation is correctly designed and secured.
The SD200 series is designed in accordance with IEC/EN 60947-3 and requires appropriate upstream protection against short circuits and overloads because the switch disconnector itself does not provide automatic overcurrent protection. Its compact DIN-rail format makes the SD201/50 particularly useful where dependable 50 A isolation is required without occupying excessive distribution-board space.
Typical Applications
- Single-phase circuit switching and isolation.
- Residential electrical distribution boards.
- Commercial building electrical systems.
- Industrial control and distribution panels.
- Isolation of downstream equipment for maintenance.
- Manual load switching in low-voltage installations.
Technical Specifications
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| Device Type | Modular Switch Disconnect | |
|---|---|---|
| Mounting Type | DIN rail | |
| Current | 50 A | |
| Poles | 1-pole | |
| Product Series | ABB SD200 | |
| Series | SD200 | |
| ABB order code | 2CDD281101R0050 | |
| Product group | Protection & Control | |
| Product type | Switch disconnector | |
| Number of poles | 1 | |
| Normally open contacts | 1 | |
| Rated current | 50 A | |
| Rated voltage | 253 V | |
| Rated operational voltage | 253 V AC / 60 V DC | |
| Maximum operational voltage | 266 V AC / 63 V DC | |
| Minimum operational voltage | 12 V AC | |
| Rated frequency | 50/60 Hz | |
| Conditional short-circuit current | 25 kA | |
| Rated impulse withstand voltage | 4 kV | |
| AC utilisation category | AC-23A | |
| DC utilisation category | DC-21A | |
| Power loss | 2.83 W | |
| Electrical endurance | 10,000 AC cycles | |
| Contact position indication | ON / OFF | |
| Protection rating | IP20 | |
| Module width | 1 module | |
| Mounting type | DIN-rail mounting | |
| Dimensions (W × H × D) | 17.5 × 88 × 69 mm | |
| Weight | 0.085 kg | |
| Standard | IEC/EN 60947-3 | |
| EAN | 4016779904100 |
Frequently Asked Questions
What is the ABB SD201/50 used for?
The SD201/50 is a single-pole switch disconnector used for manual load switching and isolation of downstream electrical circuits in low-voltage distribution systems.
What is the rated current of the ABB SD201/50?
The ABB SD201/50 has a 50 A rated current and is designed for single-pole switching and isolation applications.
What voltage is the SD201/50 rated for?
The SD201/50 has a rated operational voltage of 253 V AC and 60 V DC.
Does the ABB SD201/50 provide overcurrent protection?
No. The SD201/50 is a switch disconnector rather than a circuit breaker, so appropriate upstream protection against short circuits and overloads must be provided by devices such as fuses or circuit breakers.
Where is the ABB SD201/50 typically installed?
The SD201/50 is designed for DIN-rail installation in electrical distribution boards and control panels where compact manual switching and safe circuit isolation are required.
Trusted Circuit Isolation from ABB
ABB SD200 switch disconnectors provide dependable manual switching and isolation for low-voltage electrical systems, combining compact DIN-rail construction with clear operation and robust performance for professional distribution installations.
