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.
OTDC250E11 ABB 250 A 2-Pole 1000 V DC Switch Disconnector
ABB OTDC250E11 is a 250 A two-pole single-circuit DC switch disconnector rated for 1000 V DC with a front-operated mechanism between the poles for dependable high-current DC switching and isolation.
£337.76
Why Choose the ABB OTDC250E11 DC Switch Disconnector?
The ABB OTDC250E11 is a heavy-duty 250 A two-pole DC switch disconnector designed for dependable switching and electrical isolation in direct-current power systems. Part of ABB's OTDC S1.0 range, it is specifically engineered for DC applications up to 1000 V DC.
The OTDC250E11 provides a single-circuit two-pole configuration, switching one positive and one negative conductor, with its operating mechanism positioned between the poles. It is front operated and base mounted, making it suitable for integration into switchboards, photovoltaic equipment and industrial DC assemblies.
With a rated operational current of 250 A DC-21B at 1000 V DC, the OTDC250E11 provides dedicated high-voltage DC switching performance. A terminal bolt kit is included, while the handle and shaft are ordered separately, allowing the operating arrangement to be matched to the enclosure and installation.
Key Advantages
- 250 A two-pole DC switch disconnector for high-current DC isolation.
- Rated for 250 A DC-21B at 1000 V DC.
- Single-circuit configuration switching one positive and one negative conductor.
- Front-operated mechanism between the poles for practical enclosure integration.
- 1500 V rated insulation voltage and 12 kV impulse withstand voltage.
- Compact ABB OTDC S1.0 construction designed specifically for DC applications.
Key Features
- ABB OTDC S1.0 series.
- 250 A conventional thermal current.
- 2-pole, single-circuit configuration.
- 1000 V DC rated operational voltage.
- 250 A DC-21B rated operational current.
- 11 mechanism configuration positioned between the poles.
- Front-operated design.
- Base-mounted construction.
- Terminal bolt kit included.
- Handle and shaft not included and selected separately.
Reliable 1000 V DC Switching and Electrical Isolation
DC switch disconnectors provide a defined means of manually separating direct-current circuits for operational switching, servicing and maintenance. The ABB OTDC250E11 combines a 250 A DC-21B rating with 1000 V DC capability, providing dependable isolation for demanding industrial and renewable-energy DC systems.
Its two-pole single-circuit arrangement enables simultaneous switching of one positive and one negative conductor. The mechanism-between-poles configuration and separately selected handle and shaft provide flexibility when integrating the switch into electrical enclosures and equipment assemblies.
Typical Applications
- Photovoltaic DC isolation systems.
- Solar inverter and power-conversion equipment.
- Battery and energy-storage installations.
- Industrial DC power distribution systems.
- Renewable-energy electrical assemblies.
- 1000 V DC circuits requiring 250 A two-pole isolation.
Technical Specifications
Tick the specs you need, then view products that match.
| Poles | 2-pole | |
|---|---|---|
| Current | 250 A | |
| Device Type | Switch Disconnector | |
| Product Series | ABB OTDC | |
| Series | OTDC S1.0 | |
| ABB order code | 1SCA125865R1001 | |
| Product type | DC switch disconnector | |
| Conventional thermal current | 250 A | |
| Number of poles | 2 | |
| Number of circuits | 1 | |
| Switched conductors | 1 × positive and 1 × negative | |
| Circuit configuration | 2a, 2b | |
| Rated operational current DC-21B | 250 A | |
| Rated operational voltage | 1000 V DC | |
| Rated insulation voltage | 1500 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated short-time withstand current at 1000 V DC | 10 kA | |
| Operating mode | Front operated | |
| Operating mechanism | 11, between the poles | |
| Mounting | Base mounting | |
| Handle and shaft | Not included | |
| Terminal bolt kit | Included, M8 × 25 mm | |
| Unit weight | 1.1 kg | |
| Standards | IEC 60947-1, IEC 60947-3 | |
| ABB product group | 311027-OT Switches |
Frequently Asked Questions
What is the ABB OTDC250E11 used for?
The OTDC250E11 is a 250 A two-pole DC switch disconnector designed for manual switching and electrical isolation in photovoltaic, energy-storage and industrial DC power systems.
What is the current rating of the ABB OTDC250E11?
The OTDC250E11 has a rated operational current of 250 A DC-21B at 1000 V DC.
What voltage is the OTDC250E11 rated for?
The ABB OTDC250E11 has a rated operational voltage of 1000 V DC and a rated insulation voltage of 1500 V.
How many poles does the ABB OTDC250E11 have?
The OTDC250E11 has two poles arranged as a single DC circuit, enabling simultaneous switching of one positive and one negative conductor.
Where is the operating mechanism positioned on the OTDC250E11?
The OTDC250E11 is front operated and uses the 11 configuration with its operating mechanism positioned between the poles.
Does the ABB OTDC250E11 include a handle and shaft?
No. The OTDC250E11 is supplied without a handle and shaft, allowing compatible ABB operating accessories to be selected separately for the installation.
Does the OTDC250E11 include terminal hardware?
Yes. The ABB OTDC250E11 includes an M8 × 25 mm terminal bolt kit.
Trusted by DC Power and Industrial Electrical Professionals
ABB OTDC switch disconnectors are engineered specifically for reliable DC switching and isolation in photovoltaic, energy-storage and industrial power systems, providing dedicated high-voltage DC performance in compact electrical assemblies.
