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OT250ES03 ABB 250 A 3-Pole Side-Operated Switch-Disconnector
ABB OT250ES03 is a 250 A 3-pole side-operated, base-mounted switch-disconnector designed for reliable isolation and switching in industrial low-voltage electrical systems.
£267.31
Why Choose the ABB OT250ES03 Switch-Disconnector?
The ABB OT250ES03 is a robust 250 A, 3-pole side-operated switch-disconnector designed for safe and reliable isolation of low-voltage electrical circuits. As part of the ABB OT switch-disconnector range, it provides dependable switching and isolation for industrial power distribution, machinery and electrical control applications.
Designed for base mounting, the OT250ES03 combines a compact construction with high electrical and mechanical performance. Its side-operated mechanism makes it particularly suitable for installations where the operating shaft and external handle need to approach the switch from the side of an enclosure or panel.
With a conventional free-air thermal current rating of 250 A and 3-pole configuration, the OT250ES03 is suitable for demanding low-voltage isolation duties. It is supplied with a terminal bolt kit, while the operating handle and shaft are ordered separately, allowing the installation to be configured for the specific enclosure and application.
Key Advantages
- Heavy-duty 250 A switch-disconnector for industrial electrical systems.
- 3-pole configuration for three-phase circuit isolation.
- Side-operated mechanism for flexible panel and enclosure layouts.
- Suitable for base mounting in electrical panels and switchgear assemblies.
- High 1000 V rated insulation voltage for demanding low-voltage applications.
- Provides visible, dependable circuit isolation as part of the ABB OT switch-disconnector range.
Key Features
- ABB OT switch-disconnector range.
- 250 A conventional free-air thermal current.
- 3-pole switching configuration.
- Side-operated switching mechanism.
- Base-mounted construction.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Terminal bolt kit included.
- Handle and operating shaft ordered separately.
Reliable Electrical Isolation for Industrial Systems
Switch-disconnectors such as the ABB OT250ES03 provide a means of switching and isolating electrical circuits so equipment can be safely disconnected from its power source. They are commonly incorporated into industrial switchboards, distribution panels, machinery and control enclosures where dependable manual isolation is required.
The OT250ES03 combines a 250 A current rating with a compact 3-pole, side-operated arrangement. Its base-mounted construction and separate handle and shaft arrangement give panel builders flexibility when designing switchgear and enclosure layouts.
Typical Applications
- Industrial electrical distribution panels.
- Machinery main isolators and disconnecting devices.
- Motor control centres and automation panels.
- Low-voltage switchgear assemblies.
- Industrial control cabinets and electrical enclosures.
- Three-phase power distribution systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Poles | 3-pole | |
|---|---|---|
| Device Type | Switch Disconnector | |
| Current | 250 A | |
| Product Series | ABB OT | |
| Series | OT Switch-Disconnectors | |
| ABB product ID | 1SCA022860R0890 | |
| ABB product group | 311027-OT Switches | |
| Product type | Switch-disconnector | |
| Rated current | 250 A | |
| Conventional free-air thermal current (Ith) | 250 A | |
| Number of poles | 3 | |
| Operating mode | Side operated | |
| Mounting type | Base mounting | |
| Rated operational current AC-21A at 380–415 V AC | 250 A | |
| Rated operational current AC-22A at 380–415 V AC | 250 A | |
| Rated operational current AC-23A at 380–415 V AC | 250 A | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 12 kV | |
| Terminal type | Lug / bolted terminals | |
| Operating mechanism | Mechanism at end of switch | |
| Handle and shaft | Not included | |
| Terminal bolt kit | Included | |
| Pollution degree | 3 | |
| Mechanical durability | 20,000 operations | |
| Power loss at rated operating conditions | 6.5 W per pole | |
| Product height | 150 mm | |
| Product depth | 82 mm | |
| EAN | 6417019308791 |
Frequently Asked Questions
What is the ABB OT250ES03 used for?
The ABB OT250ES03 is a switch-disconnector used for switching and safely isolating low-voltage electrical circuits in industrial distribution, machinery and control-panel applications.
What is the current rating of the ABB OT250ES03?
The OT250ES03 has a conventional free-air thermal current rating of 250 A.
How many poles does the OT250ES03 have?
The ABB OT250ES03 is a 3-pole switch-disconnector designed for applications including three-phase electrical circuits.
How is the ABB OT250ES03 operated?
The OT250ES03 uses a side-operated mechanism, allowing it to be configured with an appropriate operating shaft and handle for the panel or enclosure installation.
Are the handle and shaft included with the OT250ES03?
No. The handle and shaft are ordered separately, while the terminal bolt kit is included with the switch-disconnector.
Trusted Industrial Switching from ABB
ABB OT switch-disconnectors are designed for dependable switching and isolation in industrial power distribution, machinery and control-panel applications, providing a robust solution for electrical system designers and panel builders.
