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1SCA022750R8360 ABB Fuse Switch 250A 3 Pole
ABB OS250B30N3P fuse switch disconnector, a 250 A three pole industrial switching device designed for fuse protection and electrical isolation applications.
£445.20
Why Choose the ABB OS250B30N3P Fuse Switch?
The ABB OS250B30N3P is a robust and reliable fuse switch disconnector designed for safe isolation and protection of low-voltage electrical systems. As part of the ABB OS250 fuse switch series, it provides dependable switching performance for industrial distribution, motor control and power protection applications.
This front-operated fuse switch combines a compact base-mounted design with high current capability, allowing efficient integration into industrial switchboards and electrical panels. The unit is engineered for demanding applications where secure manual switching, fuse protection and reliable circuit isolation are required.
With a rated current of 250 A, a 3-pole configuration and compatibility with B1-B3 British Standard fuses, the ABB OS250B30N3P is suitable for industrial power distribution systems requiring dependable switching and fuse protection. :chatgpt-content-reference{index="0"}
Key Advantages
- 250 A fuse switch disconnector for industrial power applications.
- 3-pole switching design for reliable circuit isolation.
- Compatible with B1-B3 British Standard fuse sizes.
- Right-side operating mechanism for flexible installation layouts.
- Front-operated design for straightforward manual operation.
- High electrical performance with IEC 60947-3 compliance.
Key Features
- ABB OS250 fuse switch series.
- 250 A rated current.
- 3-pole configuration.
- B1-B3 British Standard fuse compatibility.
- 30 right-side operating mechanism.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- Base mounting construction for switchboards and panels.
- Detachable neutral link integrated into the mechanism.
Reliable Power Isolation for Industrial Systems
Fuse switches such as the ABB OS250B30N3P provide a combined solution for manual circuit switching and fuse-based protection. They enable operators and maintenance teams to safely isolate electrical circuits while protecting equipment from overcurrent conditions.
The ABB OS250 series is designed for industrial distribution boards, machinery installations and electrical infrastructure where dependable switching performance and long service life are essential.
Typical Applications
- Industrial distribution panels.
- Motor control centres and machinery systems.
- Power protection and isolation circuits.
- Manufacturing and processing facilities.
- Commercial and industrial electrical installations.
- Switchboards and control cabinets.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS250 Fuse Switches | |
| Product type | Fuse switch disconnector | |
| ABB order code | 1SCA022750R8360 | |
| Rated current | 250 A | |
| Number of poles | 3 poles | |
| Fuse size | B1-B3 | |
| Fuse system | British Standard | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Short-time withstand current | 8 kA for 1 s | |
| Conditional short-circuit current | 80 kA at 690 V | |
| Operating mode | Front operated | |
| Operating mechanism | 30 right side | |
| Mounting type | Base mounting | |
| Standards | IEC 60947-3 | |
| Terminal type | Lug terminals | |
| Terminal width | 25 mm | |
| Tightening torque | 30–44 N·m | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | approx. 199 × 208 × 154 mm | |
| Weight | approx. 4.1 kg |
Frequently Asked Questions
What is the ABB OS250B30N3P used for?
The ABB OS250B30N3P is a fuse switch disconnector used for manual switching, isolation and fuse protection in low-voltage industrial electrical systems.
What current rating does this fuse switch provide?
The OS250B30N3P has a rated current of 250 A.
How many poles does the ABB OS250B30N3P have?
This fuse switch features a 3-pole configuration with a right-side operating mechanism.
Which fuses are compatible with this model?
The OS250B30N3P is designed for B1-B3 British Standard fuse sizes.
What voltage rating does the fuse switch support?
The ABB OS250B30N3P supports a main circuit rated operational voltage of 690 V AC.
Trusted for Industrial Switching Applications
ABB OS250 fuse switches are widely used in industrial electrical systems to provide reliable circuit isolation, fuse protection and safe manual switching performance.
