Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SCA022836R4630 ABB 800A 3 Pole DIN Switch Fuse
ABB OS800D03H is an 800 A three-pole DIN switch fuse with an 03 left-side operating mechanism, NH3 fuse compatibility and 20 µm silver-plated contacts, supplied without handle and shaft for industrial low-voltage power distribution.
£1,468.43
Why Choose the ABB OS800D03H 800A 3-Pole DIN Switch Fuse?
The ABB OS800D03H, ABB product ID 1SCA022836R4630, is a heavy-duty 800 A three-pole DIN switch fuse designed for reliable switching, isolation and fuse protection in demanding low-voltage electrical distribution systems. As part of the established ABB OS fuse switch series, it provides dependable high-current circuit control for industrial switchboards, distribution equipment and power applications.
The OS800D03H is a front-operated switch fuse with the operating mechanism positioned on the left side. It is designed for the DIN fuse system using NH3 size fuse links, while its base-mounted construction and lug terminals support integration into high-current electrical panels and switchboards.
With a rated current of 800 A, a three-pole configuration and rated operational voltage up to 690 V AC, the OS800D03H is suitable for substantial three-phase electrical loads. This version features 20 µm silver-plated contacts and is supplied without a handle and shaft, allowing the appropriate operating accessories to be selected for the installation.
Key Advantages
- Heavy-duty 800 A DIN switch fuse for high-current electrical distribution.
- Three-pole configuration designed for three-phase power systems.
- Left-side operating mechanism for practical switchboard integration.
- Designed for DIN NH3 fuse links.
- 20 µm silver-plated contacts for dependable high-current performance.
- Supplied without handle and shaft for flexible accessory selection.
Key Features
- ABB OS fuse switch series.
- 800 A rated current.
- Three-pole switching arrangement.
- DIN fuse system with NH3 fuse size.
- 03 left-side operating mechanism.
- 20 µm silver-plated contacts.
- Front-operated, base-mounted construction.
- Rated operational voltage up to 690 V AC.
- Handle and shaft not included.
- ABB product group 311021-OS Fuse Switches.
Reliable High-Current Switching and DIN Fuse Protection
Switch fuses combine load switching, circuit isolation and fuse protection within a single assembly. The ABB OS800D03H enables high-current three-phase circuits to be isolated while suitable NH3 DIN fuse links provide overcurrent and short-circuit protection appropriate to the electrical installation.
The ABB OS series is engineered for industrial power distribution where dependable isolation and robust electrical performance are essential. With its 800 A rating, DIN fuse system, three-pole configuration and left-side mechanism, the OS800D03H provides a practical solution for high-capacity feeders and industrial distribution equipment.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main electrical switchboards and distribution boards.
- High-current three-phase feeder circuits.
- Motor control centres and industrial machinery.
- Factory and process plant electrical systems.
- Commercial and industrial power distribution equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS Fuse Switches | |
| ABB order code | OS800D03H | |
| ABB product ID | 1SCA022836R4630 | |
| ABB product group | 311021-OS Fuse Switches | |
| Product type | DIN switch fuse / fuse switch disconnector | |
| Rated current | 800 A | |
| Number of poles | 3 | |
| Fuse system | DIN | |
| Fuse size | NH3 | |
| Operating mechanism | 03, left side | |
| Contact plating | 20 µm silver | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated operational current AC-21A | 800 A at 500 / 690 V AC | |
| Rated operational current AC-22A | 800 A at 380–415 / 500 / 690 V AC | |
| Rated operational current AC-23A | 800 A at 380–415 / 500 / 690 V AC | |
| Rated short-time withstand current | 18 kA rms for 1 s | |
| Rated conditional short-circuit current | 100 kA at 500 V; 80 kA at 690 V | |
| Conventional free-air thermal current | 800 A at 40 °C | |
| Fully enclosed thermal current | 720 A | |
| Degree of protection | IP20 | |
| Operating mode | Front operated | |
| Mounting type | Base mounting | |
| Terminal type | Lug terminals | |
| Standard | IEC 60947-3 | |
| Handle and shaft | Not included |
Frequently Asked Questions
What is the ABB OS800D03H used for?
The ABB OS800D03H is used for switching, isolating and providing DIN fuse protection on high-current three-phase circuits in industrial low-voltage power distribution systems.
What is the current rating of the ABB OS800D03H?
The OS800D03H has a rated current of 800 A and a rated operational voltage up to 690 V AC.
How many poles does the OS800D03H have?
The ABB OS800D03H has a three-pole configuration designed for switching and isolating three-phase electrical circuits.
What type of fuses does the OS800D03H use?
The OS800D03H uses the DIN fuse system and is designed for NH3 size fuse links.
Does the ABB OS800D03H include a handle and shaft?
No. The OS800D03H is supplied without a handle and shaft, allowing suitable operating accessories to be selected for the installation.
Trusted Industrial Circuit Protection from ABB
ABB OS fuse switches provide dependable switching, isolation and fuse protection for low-voltage power distribution, combining robust construction with high-current performance for demanding industrial electrical installations.
