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1SCA129906R1001 ABB 100 A 3P+N Fuse Switch Disconnector
ABB OS100GB03N3-42 is a compact 100 A 3P+N British Standard fuse switch disconnector with an integrated detachable neutral link and integrated back nuts for industrial switching, isolation and fuse protection.
£229.32
Why Choose the ABB OS100GB03N3-42 Fuse Switch Disconnector?
The ABB OS100GB03N3-42 is a compact 100 A, 3P+N fuse switch disconnector from the ABB OS range, designed for British Standard fuse links in industrial low-voltage distribution systems. It combines load switching, isolation and fuse protection within a robust front-operated assembly.
This model incorporates a detachable neutral link integrated into the mechanism, providing a dedicated neutral connection alongside the three fused phases. The -42 terminal configuration features integrated back nuts for easier installation, while the unit accepts BS A2–A4 fuse links.
Rated for operation up to 690 V AC, the OS100GB03N3-42 is suitable for demanding industrial power distribution applications. Its base-mounted design, front operating mechanism and flexible top/bottom line connection arrangement support straightforward integration into switchboards, distribution panels and machinery power systems.
Key Advantages
- Compact 100 A fuse switch disconnector for industrial power distribution.
- 3P+N configuration with integrated detachable neutral link.
- Designed for British Standard A2–A4 fuse links.
- Integrated back nuts simplify terminal installation.
- Rated operational voltage up to 690 V AC.
- Combines switching, isolation and fuse protection in one assembly.
Key Features
- ABB OS100GB series fuse switch disconnector.
- Rated current: 100 A.
- 3P+N pole configuration.
- Detachable neutral link integrated into the mechanism.
- British Standard fuse system.
- Suitable for A2–A4 fuse sizes.
- Front-operated switching mechanism.
- Base mounting.
- Lug terminals with integrated back nuts.
- Complies with IEC 60947-3.
Compact Fuse Protection and Safe Power Isolation
The ABB OS100GB03N3-42 combines a manually operated switch-disconnector with British Standard fuse protection, providing a coordinated solution for switching and isolating three-phase circuits. Its 3P+N configuration includes a detachable neutral link within the mechanism, allowing the neutral connection to be incorporated neatly into the switching assembly.
Integrated back nuts simplify conductor termination and help reduce installation effort within switchboards. With a 100 A rating, operation up to 690 V AC and compliance with IEC 60947-3, the unit is suited to industrial distribution systems where reliable isolation and high-performance fuse protection are required.
Typical Applications
- Industrial low-voltage distribution boards.
- Main and sub-main circuit isolation.
- Machinery power distribution.
- Motor control centres.
- Industrial switchboards and control panels.
- Three-phase systems requiring fused protection with a neutral connection.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS100GB | |
| ABB order code | 1SCA129906R1001 | |
| Product type | Fuse switch disconnector | |
| Rated current | 100 A | |
| Number of poles | 3P+N | |
| Neutral | Detachable neutral link integrated into mechanism | |
| Fuse system | British Standard | |
| Fuse size | A2–A4 | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 8 kV | |
| Rated conditional short-circuit current | 80 kA at 690 V | |
| Operating mode | Front operated | |
| Operating mechanism | 03, left side | |
| Mounting type | Base mounting | |
| Terminal type | Lug terminals with integrated back nuts | |
| Terminal width | 20 mm | |
| Terminal tightening torque | 15–22 N·m | |
| Standard | IEC 60947-3 | |
| Product dimensions | 147 × 140 × 115 mm | |
| Net weight | approx. 1.5 kg | |
| Handle and shaft | Not included |
Frequently Asked Questions
What is the ABB OS100GB03N3-42?
The ABB OS100GB03N3-42 is a 100 A, 3P+N fuse switch disconnector designed for British Standard fuse links and industrial low-voltage switching, isolation and circuit protection.
What type of neutral does the OS100GB03N3-42 have?
The OS100GB03N3-42 includes a detachable neutral link integrated into the operating mechanism, giving the unit a 3P+N configuration.
Which fuse sizes does the OS100GB03N3-42 accept?
The unit is designed for British Standard A2–A4 fuse links.
What does the -42 designation mean on the OS100GB03N3-42?
The -42 version uses terminals with integrated nuts on the back, providing a convenient connection arrangement for installation.
Are the operating handle and shaft supplied with the OS100GB03N3-42?
No. For the OS100GB03N3-42 version, the external operating handle and shaft are not included and are selected separately to suit the installation.
Reliable Fuse Switching from ABB
ABB OS fuse switch disconnectors combine dependable manual isolation with high-performance fuse protection, providing a compact and robust solution for industrial low-voltage distribution, machinery and switchboard applications.
