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OTDC400UF22 ABB 400 A 4-Pole 1000 V DC PV Disconnect Switch
ABB OTDC400UF22 is a four-pole 400 A 1000 V DC photovoltaic switch-disconnector designed to disconnect two PV circuits reliably in utility-scale solar power systems.
£1,264.78
Why Choose the ABB OTDC400UF22 PV Disconnect Switch?
The ABB OTDC400UF22 is a high-performance four-pole 400 A photovoltaic DC switch-disconnector designed for reliable switching and isolation in utility-scale solar power systems. Part of the ABB OTDC M-Series, this model is engineered for 1000 V DC photovoltaic installations and combines compact dimensions with efficient high-current DC switching.
The OTDC400UF22 is specifically configured to disconnect two photovoltaic DC circuits with a single switch. ABB's optimised OTDC pole design helps improve system efficiency while reducing the space required within combiner boxes, inverter cabinets and other photovoltaic equipment.
With a UL/CSA ampere rating of 400 A at 1000 V DC, four poles and a double-circuit configuration, the OTDC400UF22 provides robust isolation for demanding solar installations. The switch is designed for base mounting and is supplied without handle and shaft, allowing suitable operating accessories to be selected for the finished assembly.
Key Advantages
- Purpose-designed PV DC switch-disconnector for utility-scale solar installations.
- 400 A at 1000 V DC UL/CSA ampere rating.
- Four-pole construction for high-performance DC switching.
- Double-circuit design enables two PV circuits to be disconnected with one switch.
- Compact OTDC construction helps reduce the size of combiner boxes and inverter assemblies.
- 10 kA rated short-time withstand current.
- 12 kV rated impulse withstand voltage.
- Approved according to UL 98B and IEC 60947-1/-3.
Key Features
- ABB OTDC M-Series photovoltaic DC switch-disconnector.
- 400 A UL/CSA ampere rating at 1000 V DC.
- 1000 V DC rated operational voltage.
- 4-pole construction.
- Double PV circuit configuration.
- Circuit configuration 4a / 4c.
- 10 kA rated short-time withstand current.
- 1500 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Base-mounted design for integration into electrical equipment.
- Optimised for utility-scale photovoltaic applications.
- Supplied without handle and shaft.
Reliable DC Isolation for Photovoltaic Systems
Photovoltaic switch-disconnectors provide a dependable means of electrically isolating DC circuits for operation, inspection and maintenance. Utility-scale solar installations require switching equipment specifically designed to interrupt high DC voltages reliably while minimising electrical losses within the power conversion system.
The ABB OTDC400UF22 is optimised for this role, combining a four-pole architecture with a double-circuit arrangement that allows two PV circuits to be controlled simultaneously. Its compact construction supports space-efficient integration into combiner boxes and inverters while providing the electrical performance required for demanding 1000 V DC photovoltaic systems.
Typical Applications
- Utility-scale photovoltaic power plants.
- 1000 V DC solar power systems.
- Photovoltaic combiner and recombiner boxes.
- Solar inverter DC isolation.
- Double-circuit photovoltaic switching.
- Renewable-energy power conversion equipment.
- Industrial high-voltage DC distribution equipment.
Technical Specifications
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| Poles | 4-pole | |
|---|---|---|
| Device Type | Switch Disconnector | |
| Current | 400 A | |
| Product Series | ABB OTDC | |
| Series | OTDC M-Series | |
| ABB order code | 1SCA158300R1001 | |
| Product type | PV DC switch-disconnector | |
| UL/CSA ampere rating | 400 A at 1000 V DC | |
| Rated operational voltage | 1000 V DC | |
| Number of poles | 4 | |
| Number of circuits | 2 | |
| Circuit configuration | Double circuit, 4a / 4c | |
| Rated short-time withstand current (Icw) | 10 kA | |
| Rated insulation voltage (Ui) | 1500 V | |
| Rated impulse withstand voltage (Uimp) | 12 kV | |
| Mounting type | Base mounting | |
| Standards | UL 98B, IEC 60947-1, IEC 60947-3 | |
| Application | Utility-scale photovoltaic power systems | |
| EAN | 6417019874050 | |
| Handle and shaft | Not included |
Frequently Asked Questions
What is the ABB OTDC400UF22 used for?
The ABB OTDC400UF22 is a photovoltaic DC switch-disconnector designed to provide reliable switching and isolation in utility-scale solar power systems.
What is the current and voltage rating of the OTDC400UF22?
The OTDC400UF22 has a UL/CSA ampere rating of 400 A at 1000 V DC.
How many poles does the OTDC400UF22 have?
The ABB OTDC400UF22 has four poles and is configured for double-circuit photovoltaic switching.
Can the OTDC400UF22 disconnect two PV circuits?
Yes. The OTDC400UF22 uses a double-circuit 4a / 4c configuration, allowing two photovoltaic DC circuits to be disconnected using one switch.
Does the OTDC400UF22 include a handle and shaft?
No. The ABB OTDC400UF22 is supplied without handle and shaft, allowing suitable operating accessories to be selected for the installation.
Trusted DC Switching for Solar Power Systems
ABB OTDC switch-disconnectors are designed to provide efficient and dependable DC isolation for photovoltaic power systems, with compact multi-circuit configurations helping manufacturers optimise combiner boxes, inverters and utility-scale solar equipment.
