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OTDC250GV22 ABB 250 A 4-Pole 1500 V DC Switch-Disconnector
ABB OTDC250GV22 is a 250 A four-pole two-circuit 1500 V DC switch-disconnector with a 10 kA short-time withstand rating for reliable isolation in high-voltage DC power systems.
£547.74
Why Choose the ABB OTDC250GV22 DC Switch-Disconnector?
The ABB OTDC250GV22 is a compact, high-performance 250 A four-pole DC switch-disconnector designed for reliable switching and isolation in demanding 1500 V DC systems. Part of the ABB OTDC S2.0 series, it provides an efficient solution for manufacturers integrating high-voltage DC isolation into photovoltaic, renewable-energy and industrial power equipment.
The OTDC250GV22 is optimised as a four-pole switch-disconnector capable of operating two DC circuits with a single switch. Its compact construction helps reduce enclosure space while providing dependable switching performance, making it particularly suitable for modern 1500 V DC installations where efficiency and equipment density are important.
With a rated operational current of 250 A at 1500 V DC, a four-pole, two-circuit configuration and a rated short-time withstand current of 10 kA, the OTDC250GV22 delivers robust DC isolation in a compact S2.0 frame. It is base mounted with lug terminals and is supplied without handle and shaft for integration with suitable operating accessories.
Key Advantages
- Compact 250 A DC switch-disconnector for high-voltage DC applications.
- Designed for operation at 1500 V DC.
- Four-pole configuration capable of switching two DC circuits.
- 10 kA rated short-time withstand current at 1500 V DC.
- Compact S2.0 frame helps minimise enclosure space requirements.
- High-efficiency OTDC design helps reduce power losses in DC installations.
- Base-mounted construction with robust lug terminals.
- Compliant with IEC 60947-1 and IEC 60947-3.
Key Features
- ABB OTDC S2.0 series DC switch-disconnector.
- 250 A rated operational current at 1500 V DC for DC-21B applications.
- 1500 V DC rated operational voltage.
- 4-pole construction.
- Two-circuit configuration.
- Circuit arrangement 4a / 4c.
- 10 kA rated short-time withstand current at 1500 V DC.
- 12 kV rated impulse withstand voltage.
- IP20 protection rating.
- Base mounting with lug terminals.
- Mechanical endurance of 10,000 operating cycles.
- Supplied without handle and shaft.
Reliable Isolation for 1500 V DC Systems
DC switch-disconnectors provide a dependable means of electrically isolating circuits during operation, servicing and maintenance. In high-voltage DC installations, suitable switching architecture is essential for safely interrupting current and providing clear electrical isolation between power sources and downstream equipment.
The ABB OTDC250GV22 is specifically optimised for modern 1500 V DC installations. Its four-pole architecture enables two circuits to be operated with a single switch, while its compact S2.0 construction, low power losses and robust electrical performance support efficient integration into photovoltaic equipment, renewable-energy systems and industrial DC assemblies.
Typical Applications
- 1500 V DC photovoltaic power systems.
- Solar inverter DC isolation.
- Photovoltaic combiner and distribution equipment.
- Renewable-energy power conversion systems.
- High-voltage DC distribution equipment.
- Industrial DC switchgear and control panels.
- OEM electrical and power conversion equipment.
Technical Specifications
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| Poles | 4-pole | |
|---|---|---|
| Current | 250 A | |
| Device Type | Switch Disconnector | |
| Product Series | ABB OTDC | |
| Series | OTDC S2.0 | |
| ABB order code | 1SCA161939R1001 | |
| Product type | DC switch-disconnector | |
| Rated operational current | 250 A | |
| Rated operational voltage | 1500 V DC | |
| DC-21B rated operational current | 250 A | |
| Number of poles | 4 | |
| Number of circuits | 2 | |
| Circuit configuration | 4a / 4c | |
| Rated short-time withstand current (Icw) | 10 kA at 1500 V DC | |
| Rated short-circuit making capacity (Icm) | 10 kA at 1500 V DC | |
| Rated insulation voltage (Ui) | 1500 V | |
| Rated impulse withstand voltage (Uimp) | 12 kV | |
| Conventional thermal current | 250 A | |
| Conventional free-air thermal current (Ith) | 250 A at 40 °C | |
| Power loss | 7.7–8.4 W per pole at rated operating conditions | |
| Protection rating | IP20 | |
| Pollution degree | 2 | |
| Mechanical endurance | 10,000 cycles | |
| Mounting type | Base mounting | |
| Terminal type | Lug terminals | |
| Frame size | S2.0 | |
| Dimensions (H × W × D) | 165 × 224 × 120 mm | |
| Weight | 3 kg | |
| Standards | IEC 60947-1, IEC 60947-3 | |
| Handle and shaft | Not included |
Frequently Asked Questions
What is the ABB OTDC250GV22 used for?
The ABB OTDC250GV22 is designed for reliable switching and isolation of 1500 V DC circuits in photovoltaic, renewable-energy and industrial DC power systems.
What is the current rating of the OTDC250GV22?
The OTDC250GV22 has a rated operational current of 250 A at 1500 V DC for DC-21B applications.
How many poles and circuits does the OTDC250GV22 have?
The ABB OTDC250GV22 is a four-pole switch-disconnector designed to operate two DC circuits with a single switch.
What is the short-time withstand rating of the OTDC250GV22?
The OTDC250GV22 has a rated short-time withstand current of 10 kA at 1500 V DC.
Does the OTDC250GV22 include a handle and shaft?
No. The ABB OTDC250GV22 is supplied without handle and shaft, allowing suitable operating accessories to be selected for the installation.
Trusted DC Switching from ABB
ABB OTDC switch-disconnectors provide compact and dependable high-voltage DC isolation for photovoltaic, renewable-energy and industrial power systems, combining efficient switching performance with robust construction for demanding electrical installations.
