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2CDS213103R0065 ABB SH203-B6NA MCB 6kA 3P+N Type B 6A
ABB SH203-B6NA is a 6 A Type B 3P+N miniature circuit breaker with 6 kA breaking capacity, providing overcurrent protection for three phase conductors together with simultaneous neutral switching.
£136.77
Why Choose the ABB SH203-B6NA Miniature Circuit Breaker?
The ABB SH203-B6NA is a compact 3P+N miniature circuit breaker (MCB) designed to provide overload and short-circuit protection for low-voltage electrical installations. As part of the established ABB SH200 MCB series, it combines thermal overload protection with electromagnetic short-circuit protection in a modular DIN-rail format.
With a rated current of 6 A, a Type B tripping characteristic and a rated short-circuit breaking capacity of 6 kA, the SH203-B6NA is suited to circuits where relatively low starting and inrush currents are expected. The B-curve characteristic makes it appropriate for general distribution, lighting, control and similar conventional electrical loads.
The SH203-B6NA uses a 3P+N configuration, providing three protected phase poles together with a switched neutral pole. This arrangement enables simultaneous disconnection of the three phases and neutral while providing overcurrent protection on the phase conductors. ABB order code 2CDS213103R0065 identifies this specific 6 A B-curve 3P+N model within the SH200 range.
Key Advantages
- Compact 3P+N miniature circuit breaker for three-phase circuits with neutral.
- 6 A rated current for low-current distribution, lighting and control applications.
- Type B tripping characteristic suited to circuits with relatively low starting or inrush currents.
- 6 kA rated short-circuit breaking capacity.
- Combined thermal overload and electromagnetic short-circuit protection on the protected phase poles.
- Switched neutral enables simultaneous isolation of the neutral conductor with the three phases.
Key Features
- ABB SH200 miniature circuit breaker series.
- 6 A rated current.
- Type B tripping characteristic.
- 3P+N configuration.
- Three protected phase poles plus switched neutral.
- 6 kA breaking capacity.
- Thermal release for sustained overload protection.
- Electromagnetic release for rapid short-circuit protection.
- Suitable for circuits with relatively low transient inrush currents.
- Modular DIN-rail-mounted design for distribution boards and electrical panels.
Reliable Overcurrent Protection for Electrical Installations
Miniature circuit breakers such as the ABB SH203-B6NA protect electrical circuits, cables and connected equipment against excessive current. The thermal release responds to sustained overload conditions, while the electromagnetic release provides rapid disconnection when a short circuit occurs.
The Type B characteristic is suitable for circuits where relatively low temporary inrush currents are expected during normal operation. Combined with its 6 A rating, 3P+N arrangement and 6 kA breaking capacity, the SH203-B6NA provides practical protection and switching for three-phase and neutral low-voltage circuits.
Typical Applications
- Three-phase and neutral low-voltage circuits.
- Residential and commercial distribution boards.
- Lighting and general electrical circuits.
- Control and auxiliary circuits with relatively low inrush currents.
- Electrical control panels and modular enclosures.
- Applications requiring three protected phases with simultaneous neutral switching.
Technical Specifications
| Series | SH200 MCB |
|---|---|
| ABB order code | 2CDS213103R0065 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 6 A |
| Tripping characteristic | Type B |
| Configuration | 3P+N |
| Protected phase poles | 3 |
| Neutral | Switched neutral |
| Rated short-circuit breaking capacity | 6 kA |
| Protection principle | Thermal-magnetic |
| Mounting type | DIN rail |
| ABB product group | SH200 MCB |
Frequently Asked Questions
What is the ABB SH203-B6NA used for?
The SH203-B6NA is used to protect low-voltage three-phase circuits against overload and short-circuit currents while also switching the neutral conductor as part of its 3P+N configuration.
What is the rated current of the SH203-B6NA?
The ABB SH203-B6NA has a rated current of 6 A.
What does the Type B characteristic mean?
A Type B tripping characteristic is suited to circuits with relatively low starting and inrush currents, including many lighting, distribution, control and other conventional electrical loads.
What is the breaking capacity of this MCB?
The SH203-B6NA has a rated short-circuit breaking capacity of 6 kA.
What does 3P+N mean on the ABB SH203-B6NA?
The 3P+N configuration provides three protected phase poles together with a switched neutral pole, allowing the three phases and neutral to be disconnected simultaneously while overcurrent protection is provided on the phase conductors.
Trusted ABB Circuit Protection
ABB SH200 miniature circuit breakers provide established modular overcurrent protection for low-voltage electrical installations, combining compact DIN-rail mounting with dependable thermal and electromagnetic tripping technology.
