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2CDD283101R0016 ABB SD203/16 Switch Disconnector 3P 16 A
ABB SD203/16 is a three-pole 16 A switch disconnector rated at 440 V AC for dependable manual load switching and isolation of three-phase circuits in low-voltage electrical distribution systems.
£40.96
Why Choose the ABB SD203/16 Switch Disconnector?
The ABB SD203/16 is a compact and reliable three-pole switch disconnector designed for manual switching and safe isolation of low-voltage electrical circuits. As part of the ABB SD200 series, it provides dependable load switching and disconnection for commercial, industrial and building electrical distribution applications.
The SD203/16 simultaneously switches three poles, making it particularly suitable for three-phase circuits where all three phase conductors need to be disconnected together. Its red, sealable operating toggle provides clear ON/OFF position indication and supports controlled isolation during inspection and maintenance.
With a 16 A rated current, 440 V AC rated voltage and 25 kA conditional short-circuit current, the SD203/16 provides robust switching performance in a compact modular format. Its three-module DIN-rail construction enables straightforward integration with other System pro M compact protection and control devices.
Key Advantages
- Reliable three-pole switching and isolation for three-phase circuits.
- 16 A rated current for low-voltage distribution applications.
- 440 V AC rated voltage suitable for three-phase electrical systems.
- 25 kA conditional short-circuit current when appropriately protected upstream.
- AC-23A utilisation category supports switching under load.
- Red, sealable operating toggle provides clear and controlled manual operation.
- Compatible with ABB System pro M compact accessories and busbar systems.
Key Features
- ABB SD200 switch disconnector series.
- Three-pole (3P) configuration.
- Three normally open contacts.
- 16 A rated current.
- 440 V AC rated voltage.
- 125 V DC capability.
- 50/60 Hz rated frequency.
- AC-23A utilisation category.
- DC-21A utilisation category.
- 25 kA conditional short-circuit current.
- IP20 degree of protection.
- 20,000-cycle electrical and mechanical endurance.
- DIN-rail mounting for modular distribution assemblies.
Reliable Three-Phase Switching and Circuit Isolation
Three-pole switch disconnectors such as the ABB SD203/16 provide simultaneous switching of all three phase conductors, making them well suited to three-phase distribution and equipment-isolation applications. The clear ON/OFF position indication and sealable operating toggle support controlled isolation procedures when downstream equipment requires inspection or maintenance.
The SD200 series is designed in accordance with IEC/EN 60947-3 and requires appropriate upstream short-circuit and overload protection because the switch disconnector itself does not provide automatic overcurrent protection. Its modular DIN-rail format and compatibility with ABB System pro M compact accessories make the SD203/16 easy to integrate into professional electrical distribution systems.
Typical Applications
- Three-phase circuit switching and isolation.
- Commercial electrical distribution boards.
- Industrial control and distribution panels.
- Machinery and equipment isolation.
- Building-services electrical systems.
- Manual load switching in low-voltage installations.
Technical Specifications
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| Device Type | Modular Switch Disconnect | |
|---|---|---|
| Mounting Type | DIN rail | |
| Current | 16 A | |
| Poles | 3-pole | |
| Product Series | ABB SD200 | |
| Series | SD200 | |
| ABB order code | 2CDD283101R0016 | |
| Product group | Protection & Control | |
| Product type | Switch disconnector | |
| Number of poles | 3 | |
| Normally open contacts | 3 | |
| Rated current | 16 A | |
| Rated voltage | 440 V AC | |
| Maximum operational voltage | 462 V AC | |
| Minimum operational voltage | 12 V AC | |
| DC voltage capability | 125 V DC | |
| Rated frequency | 50/60 Hz | |
| Conditional short-circuit current | 25 kA | |
| AC utilisation category | AC-23A | |
| DC utilisation category | DC-21A | |
| Electrical endurance | 20,000 cycles | |
| Mechanical endurance | 20,000 cycles | |
| Contact position indication | ON / OFF | |
| Actuator | Red sealable toggle | |
| Protection rating | IP20 | |
| Module width | 3 modules | |
| Dimensions (W × H × D) | 52.5 × 88 × 69 mm | |
| Operating temperature | -25 to +55 °C | |
| Storage temperature | -40 to +70 °C | |
| Rigid conductor capacity | 0.75–25 mm² | |
| Stranded conductor capacity | 0.75–25 mm² | |
| Flexible conductor capacity | 0.75–16 mm² | |
| Busbar connection | up to 10 mm² | |
| Tightening torque | 2.8 N·m | |
| Mounting type | DIN rail | |
| Mounting position | Any | |
| Supply connection | Either side | |
| Standard | IEC/EN 60947-3 | |
| Weight | 0.255 kg | |
| EAN | 4016779904186 |
Frequently Asked Questions
What is the ABB SD203/16 used for?
The SD203/16 is a three-pole switch disconnector used for manual load switching and isolation of three-phase electrical circuits in low-voltage distribution systems.
What is the rated current of the ABB SD203/16?
The ABB SD203/16 has a 16 A rated current and provides simultaneous switching of three poles.
What voltage is the SD203/16 rated for?
The SD203/16 has a 440 V AC rated voltage, making it suitable for three-phase low-voltage switching and isolation applications.
Does the ABB SD203/16 provide overcurrent protection?
No. The SD203/16 is a switch disconnector rather than a circuit breaker, so appropriate upstream short-circuit and overload protection must be provided by devices such as fuses or circuit breakers.
Where is the ABB SD203/16 typically installed?
The SD203/16 is designed for DIN-rail installation in electrical distribution boards and control panels where dependable three-pole manual switching and 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, clear contact-position indication and robust switching performance for professional distribution and control installations.
