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2CDD284101R0016 ABB SD204/16 Switch Disconnector 4P 16 A
ABB SD204/16 is a four-pole 16 A switch disconnector rated at 440 V AC with a 25 kA conditional short-circuit current for dependable manual load switching and isolation in low-voltage electrical distribution systems.
£54.59
Why Choose the ABB SD204/16 Switch Disconnector?
The ABB SD204/16 is a compact and reliable four-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 SD204/16 simultaneously switches four poles, making it particularly suitable for three-phase systems where the three phase conductors and neutral need to be disconnected together. Its modular design, clear contact-position indication and sealable operating mechanism support controlled isolation during inspection and maintenance.
With a 16 A rated current, 440 V AC rated operational voltage and 25 kA conditional short-circuit current, the SD204/16 provides robust switching performance in a compact DIN-rail format. Its 70 mm four-module width integrates readily into ABB System pro M compact distribution assemblies.
Key Advantages
- Reliable four-pole switching and isolation for low-voltage circuits.
- 16 A rated current for commercial and industrial distribution applications.
- 440 V AC rated operational voltage suitable for three-phase systems.
- 25 kA conditional short-circuit current when used with appropriate upstream protection.
- AC-23A utilisation category supports switching under load.
- Four normally open contacts operate together for simultaneous four-pole disconnection.
- Compact 70 mm four-module design for DIN-rail distribution equipment.
Key Features
- ABB SD200 switch disconnector series.
- Four-pole (4P) configuration.
- Four normally open contacts.
- 16 A rated current.
- 440 V AC rated operational voltage.
- 125 V DC capability.
- AC-23A utilisation category for AC switching.
- DC-21A utilisation category for DC switching.
- 25 kA conditional short-circuit current.
- 4 kV rated impulse withstand voltage.
- IP20 degree of protection.
- DIN-rail mounting for modular electrical distribution assemblies.
Reliable Four-Pole Switching and Circuit Isolation
Four-pole switch disconnectors such as the ABB SD204/16 provide simultaneous disconnection of four conductors, making them particularly useful in three-phase systems where the neutral conductor must be switched together with the three phases. This provides a single manual switching point for isolating downstream circuits and equipment.
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 construction and compatibility with ABB System pro M compact equipment make the SD204/16 a practical choice for professional four-pole distribution systems.
Typical Applications
- Three-phase plus neutral 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 | 4-pole | |
| Product Series | ABB SD200 | |
| Series | SD200 | |
| ABB order code | 2CDD284101R0016 | |
| Product group | Protection & Control | |
| Product type | Switch disconnector | |
| Number of poles | 4 | |
| Normally open contacts | 4 | |
| Rated current | 16 A | |
| Rated voltage | 440 V | |
| Rated operational voltage | 440 V AC | |
| Maximum operational voltage | 462 V AC | |
| Minimum operational voltage | 12 V AC | |
| DC voltage capability | 125 V DC | |
| AC utilisation category | AC-23A | |
| DC utilisation category | DC-21A | |
| Conditional short-circuit current | 25 kA | |
| Rated impulse withstand voltage | 4 kV | |
| Protection rating | IP20 | |
| Pollution degree | 3 | |
| Overvoltage category | III | |
| Module width | 4 modules | |
| Dimensions (W × H × D) | 70 × 88 × 69 mm | |
| Operating temperature | -25 to +55 °C | |
| Storage temperature | -40 to +70 °C | |
| Mounting type | DIN rail | |
| Standard | IEC/EN 60947-3 | |
| Weight | 0.34 kg | |
| EAN | 4016779904247 |
Frequently Asked Questions
What is the ABB SD204/16 used for?
The SD204/16 is a four-pole switch disconnector used for manual load switching and isolation of low-voltage electrical circuits, including three-phase systems where the neutral is switched together with the phase conductors.
What is the rated current of the ABB SD204/16?
The ABB SD204/16 has a 16 A rated current and provides simultaneous switching of four poles.
What voltage is the SD204/16 rated for?
The SD204/16 has a 440 V AC rated operational voltage, with a maximum operational voltage of 462 V AC.
Does the ABB SD204/16 provide overcurrent protection?
No. The SD204/16 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 SD204/16 typically installed?
The SD204/16 is designed for DIN-rail installation in electrical distribution boards and control panels where dependable four-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 switching operation and robust performance for professional distribution and control installations.
