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1SCA022348R6390 ABB 1250A DC-20 2+2-Pole Enclosed Safety Switch
ABB OT1250KAUA2SZ is a 1250 A DC-20 2+2-pole IP65 steel-sheet enclosed safety switch designed for dependable high-current DC electrical isolation at operating voltages up to 600 V DC.
£9,925.93
Why Choose the ABB OT1250KAUA2SZ 1250A DC-20 2+2-Pole Enclosed Safety Switch?
The ABB OT1250KAUA2SZ is a heavy-duty 1250 A DC enclosed safety switch designed for dependable electrical isolation in demanding direct-current power systems. Part of the ABB OT DC safety switch range and ABB's 311019-Metal Enclosed (Loadbreak) product group, it combines high-current DC switching capability with a robust steel-sheet enclosure.
Designed specifically for high-current DC applications, the OT1250KAUA2SZ uses a 2+2-pole configuration and is rated for DC-20 duty at 1250 A. This arrangement provides a dedicated enclosed isolation solution for DC distribution, industrial DC systems and other installations where reliable disconnection of high-current direct-current circuits is required.
The OT1250KAUA2SZ provides IP65 protection and is housed in an 800 × 1000 × 330 mm enclosure. ABB specifies a cable-entry area of 800 × 330 mm, while the supplied black pistol-type operating handle provides clear manual control of the safety switch.
Key Advantages
- Heavy-duty 1250 A DC enclosed safety switch for high-current applications.
- Dedicated 2+2-pole configuration for DC electrical systems.
- 1250 A DC-20 rating at 220 V, 440 V and 600 V DC.
- IP65 protection rating for demanding industrial environments.
- Robust steel-sheet enclosed construction.
- Large 800 × 330 mm cable-entry area supports substantial high-current cabling.
- Black pistol-type operating handle provides clear manual switching and isolation.
- Designed specifically for high-current DC isolation rather than conventional AC switching duties.
Key Features
- ABB OT enclosed DC safety switch.
- 1250 A rated DC-20 operational current.
- 2+2-pole configuration.
- IP65 protection rating.
- Steel-sheet enclosed construction.
- 1250 A / 275 kW DC-20 rating at 220 V DC.
- 1250 A / 550 kW DC-20 rating at 440 V DC.
- 1250 A / 750 kW DC-20 rating at 600 V DC.
- Large enclosure suitable for high-current DC cabling.
- 800 × 330 mm cable-entry area.
- Black pistol-type operating handle.
- Designed for dependable isolation of high-current DC circuits.
High-Current DC Isolation with a 2+2-Pole Configuration
High-current DC circuits require switching equipment specifically designed for the electrical characteristics of direct current. The ABB OT1250KAUA2SZ provides a dedicated 2+2-pole DC isolation arrangement with a 1250 A DC-20 rating, making it suitable for applications where the switch is used for isolation and switching without load.
The OT1250KAUA2SZ combines ABB's OT DC switch-disconnector technology with an IP65 steel-sheet enclosure and substantial cable-entry capacity. Its ratings extend to 1250 A at 600 V DC for DC-20 duty, providing a robust enclosed solution for high-current industrial DC distribution and isolation requirements.
Typical Applications
- High-current industrial DC distribution systems.
- DC main and local electrical isolation.
- Industrial DC power systems.
- Battery and energy-storage system isolation.
- DC distribution panels and switchboards.
- Industrial process and plant DC supplies.
- High-current DC feeder isolation.
Technical Specifications
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| Material | Steel | |
|---|---|---|
| Device Type | Enclosed safety switch / isolator | |
| Series | OT Enclosed DC Safety Switches | |
| Product group | 311019-Metal Enclosed (Loadbreak) | |
| Model / order code | OT1250KAUA2SZ | |
| ABB product ID | 1SCA022348R6390 | |
| Product type | Enclosed DC safety switch / switch-disconnector | |
| Configuration | 2+2-pole | |
| Utilisation category | DC-20 | |
| Rated operational current at 220 V DC | 1250 A | |
| Rated operational power at 220 V DC | 275 kW | |
| Rated operational current at 440 V DC | 1250 A | |
| Rated operational power at 440 V DC | 550 kW | |
| Rated operational current at 600 V DC | 1250 A | |
| Rated operational power at 600 V DC | 750 kW | |
| Protection rating | IP65 | |
| Enclosure material | Steel sheet | |
| Enclosure dimensions (W × H × D) | 800 × 1000 × 330 mm | |
| Cable-entry area | 800 × 330 mm | |
| Operating handle | Black pistol type |
Frequently Asked Questions
What is the ABB OT1250KAUA2SZ used for?
The ABB OT1250KAUA2SZ is a 1250 A 2+2-pole enclosed DC safety switch designed for high-current DC electrical isolation in industrial distribution and other direct-current power applications.
What is the current rating of the ABB OT1250KAUA2SZ?
The OT1250KAUA2SZ is rated at 1250 A for DC-20 duty at 220 V, 440 V and 600 V DC.
What does the 2+2-pole configuration of the ABB OT1250KAUA2SZ mean?
The OT1250KAUA2SZ uses a 2+2-pole configuration specifically arranged for high-current DC switching and isolation applications.
What are the DC-20 power ratings of the ABB OT1250KAUA2SZ?
The OT1250KAUA2SZ is rated at 275 kW at 220 V DC, 550 kW at 440 V DC and 750 kW at 600 V DC for DC-20 duty.
What protection rating does the ABB OT1250KAUA2SZ provide?
The OT1250KAUA2SZ has an IP65 protection rating, providing a robust enclosed solution for demanding industrial DC isolation applications.
ABB High-Current DC Safety Switching for Industrial Power Systems
ABB OT enclosed DC safety switches provide dependable electrical isolation for high-current direct-current power systems, combining purpose-designed DC switching technology with robust steel-sheet enclosures and practical installation features for demanding industrial applications.
