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.
OT250ES40 ABB 250A 4 Pole Switch Disconnector
ABB OT250ES40 switch disconnector with 250 A rating, 4 pole configuration, side-operated mechanism and switched fourth pole for industrial power isolation applications.
£278.31
Why Choose the ABB OT250ES40 Switch Disconnector?
The ABB OT250ES40 is a robust AC switch disconnector designed for safe isolation and switching of industrial electrical circuits. As part of the reliable ABB OT switch disconnector series, it provides dependable performance, flexible installation and durable mechanical operation for demanding low-voltage power distribution applications.
This switch disconnector features a 4-pole configuration, side-operated mechanism and base-mounted construction. The unit is supplied without a handle and shaft, allowing flexible selection of operating accessories, while the terminal bolt kit is included for convenient installation in electrical assemblies. :chatgpt-content-reference{index="0"}
With a rated current of 250 A, 1000 V AC main circuit voltage rating and a switched simultaneous fourth pole, the OT250ES40 is suitable for industrial switchboards, machinery isolation and power distribution systems requiring reliable manual switching performance. :chatgpt-content-reference{index="1"}
Key Advantages
- Reliable switch disconnector designed for industrial power isolation.
- 250 A rated current capability for industrial electrical systems.
- 4-pole configuration with switched simultaneous fourth pole.
- Side-operated mechanism for flexible installation arrangements.
- Supplied without handle and shaft for accessory flexibility.
- Base-mounted construction for switchboard and panel integration.
Key Features
- ABB OT switch disconnector series.
- 250 A conventional free-air thermal current at 40 °C.
- 4-pole switch disconnector design.
- Mechanism at the end of the switch 40 (right side).
- Side-operated switching mechanism.
- Handle and shaft not included.
- Switched simultaneous fourth pole positioned on the right side.
- Lug terminal connection system with terminal bolt kit included.
- Designed according to IEC 60947-3 standards.
Reliable Power Isolation for Industrial Systems
Switch disconnectors such as the ABB OT250ES40 provide dependable manual isolation and switching for electrical circuits. Their robust construction supports safe maintenance procedures and reliable operation in industrial power distribution environments.
The ABB OT series is engineered for flexible electrical installations, offering multiple pole configurations, operating arrangements and accessory options for modern switchboards, machinery and automation systems.
Typical Applications
- Industrial electrical distribution systems.
- Switchboards and electrical panels.
- Machinery isolation and maintenance switching.
- Motor control centres.
- Commercial and industrial power installations.
- Low-voltage energy distribution systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Poles | 4-pole | |
|---|---|---|
| Current | 250 A | |
| Device Type | Switch Disconnector | |
| Product Series | ABB OT | |
| Series | OT Switch Disconnectors | |
| Product type | AC switch disconnector | |
| Rated operational current | 250 A | |
| Number of poles | 4P | |
| Fourth pole position | Right side | |
| Fourth pole type | Switched - simultaneous function | |
| Rated operational voltage | 1000 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated short-time withstand current | 8 kA for 1 s | |
| Rated short-circuit making capacity | 30 kA | |
| Utilisation category | AC-23A | |
| Mounting type | Base mounting | |
| Operating mode | Side operated | |
| Operating mechanism | Mechanism at the end of the switch 40 (right side) | |
| Handle type | Handle and shaft not included | |
| Distance between phases | Standard | |
| Terminal type | Lug terminals | |
| Protection rating | Front IP00 | |
| Mechanical durability | 20000 operations | |
| Dimensions (H × W × D) | 150 × 217 × 82 mm | |
| Weight | approx. 1.9 kg |
Frequently Asked Questions
What is the ABB OT250ES40 used for?
The ABB OT250ES40 is used for manual switching and isolation of electrical circuits in industrial power distribution applications.
What current rating does this switch disconnector support?
The OT250ES40 has a rated operational current of 250 A.
How many poles does the ABB OT250ES40 have?
The OT250ES40 is a 4-pole switch disconnector with a switched simultaneous fourth pole.
Is a handle included with this switch disconnector?
No, the OT250ES40 is supplied without handle and shaft, allowing selection of suitable operating accessories.
Where is the OT250ES40 typically installed?
The OT250ES40 is typically installed in industrial switchboards, electrical panels and power distribution assemblies.
Trusted by Industrial Power Engineers Worldwide
ABB OT switch disconnectors are widely used by electrical engineers and industrial operators to provide reliable isolation, efficient switching and dependable performance in demanding power distribution applications.
