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2CCS894001R0081 ABB S804N-D8 MCB 36kA 4P Type D 8A
ABB S804N-D8 is an 8 A Type D 4-pole high-performance miniature circuit breaker with a 36 kA ultimate short-circuit breaking capacity for demanding industrial circuit protection and high-inrush loads.
£219.80
Why Choose the ABB S804N-D8 High Performance MCB?
The ABB S804N-D8 is a high-performance 4-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in demanding commercial and industrial installations. As part of the ABB S800N high-performance MCB range, it combines four-pole protection with high short-circuit breaking capacity and a robust DIN rail format.
Featuring an 8 A rated current and Type D tripping characteristic, the S804N-D8 is particularly suited to circuits supplying equipment with high starting or energisation currents. Its thermal and electromechanical tripping mechanisms provide dependable overload and short-circuit protection while accommodating the temporary inrush currents associated with suitable motors, transformers and other inductive equipment.
The S804N-D8 provides a rated ultimate short-circuit breaking capacity of 36 kA and supports rated AC operation up to 690 V AC. With four protected poles, interchangeable cage terminals and fast arc extinction technology, it is well suited to industrial distribution boards, machinery and four-pole electrical systems requiring robust high-performance circuit protection.
Key Advantages
- High-performance 4-pole miniature circuit breaker for demanding electrical installations.
- 8 A rated current with Type D tripping characteristic.
- 36 kA ultimate short-circuit breaking capacity for high prospective fault-current applications.
- Type D characteristic is suitable for circuits with high inrush currents.
- Protects electrical circuits against both overloads and short circuits.
- Fast arc extinction helps provide secure interruption of short-circuit currents.
- Four protected poles provide coordinated multi-pole circuit protection.
- DIN rail mounting enables straightforward installation in electrical panels and distribution boards.
Key Features
- ABB S800N / S804N high-performance MCB series.
- 4-pole configuration with four protected poles.
- 8 A rated current.
- Type D tripping characteristic.
- 36 kA ultimate short-circuit breaking capacity (Icu).
- Rated AC voltage up to 690 V AC.
- Thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short-circuit protection.
- Suitable for equipment with substantial starting or energisation currents.
- Interchangeable cage terminals for secure electrical connections.
- IP20 protection rating.
- Designed for DIN rail mounting in commercial and industrial electrical systems.
High-Performance Protection for High Inrush Loads
Miniature circuit breakers such as the ABB S804N-D8 automatically interrupt electrical circuits when excessive current occurs because of an overload or short circuit. Thermal protection responds to sustained overload conditions, while the electromechanical short-circuit mechanism provides rapid interruption during high-current faults, helping protect conductors, connected equipment and the wider electrical installation.
The Type D characteristic makes the S804N-D8 particularly suitable for circuits supplying equipment that can draw substantial current during starting or energisation. Combined with the 36 kA breaking performance of the ABB S800N range and four-pole construction, this makes the breaker suitable for demanding industrial equipment circuits where reliable protection and tolerance of normal inrush currents are required.
Typical Applications
- Industrial electrical distribution boards.
- Four-pole industrial electrical circuits.
- Motor circuits with high starting currents.
- Transformer protection circuits.
- Machinery and industrial control panels.
- Electrical equipment with high switch-on or inrush currents.
- Electrical distribution systems with high prospective fault currents.
- Circuits requiring high-performance Type D protection.
Technical Specifications
| Series | S800N / S804N |
|---|---|
| Order code | 2CCS894001R0081 |
| GTIN / EAN | 7612271411756 |
| Product type | High-performance miniature circuit breaker (MCB) |
| Number of poles | 4P |
| Number of protected poles | 4 |
| Rated current | 8 A |
| Tripping characteristic | Type D |
| Ultimate short-circuit breaking capacity (Icu) | 36 kA |
| Rated AC voltage | up to 690 V AC |
| Rated insulation voltage (Ui) | 690 V |
| Rated frequency | 50 / 60 Hz |
| Current limiting class | 3 |
| Tripping mechanism | Thermal and electromechanical |
| Terminal type | Interchangeable cage terminal |
| Protection rating | IP20 |
| Pollution degree | 3 |
| Overvoltage category | IV |
| Mounting type | DIN rail |
| Standard | IEC/EN 60947-2 |
| Dimensions (H × W × D) | 95 × 106 × 82.5 mm |
| Power loss | 6.8 W |
| Weight | approx. 0.98 kg |
Frequently Asked Questions
What is the ABB S804N-D8 used for?
The ABB S804N-D8 is a high-performance miniature circuit breaker used to protect four-pole electrical circuits against overloads and short circuits, particularly where equipment can produce high starting or inrush currents.
What is the current rating of the ABB S804N-D8?
The S804N-D8 has a rated current of 8 A and uses a Type D tripping characteristic.
What is the breaking capacity of the S804N-D8?
The S804N-D8 has an ultimate short-circuit breaking capacity (Icu) of 36 kA, providing high-performance protection for installations with substantial prospective fault currents.
Why does the ABB S804N-D8 use a Type D characteristic?
The Type D characteristic is suited to circuits with high inrush currents, including suitable motor and transformer applications where temporary current peaks can occur during starting or energisation.
How many poles does the ABB S804N-D8 have?
The S804N-D8 is a 4-pole MCB with four protected poles, providing coordinated protection across all four poles.
Trusted High-Performance Protection from ABB
ABB S800N high-performance miniature circuit breakers provide dependable overload and short-circuit protection for demanding commercial and industrial electrical installations, including circuits with high inrush currents and applications requiring high short-circuit breaking capacity.
