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OTM1250E3M230C ABB 1250 A 3-Pole 230 V Motorised Switch-Disconnector
ABB OTM1250E3M230C is a 1250 A three-pole motorised switch-disconnector with a 220–240 V AC motor operator for reliable remote and manual isolation of high-current low-voltage power systems.
£2,620.33
Why Choose the ABB OTM1250E3M230C Motorised Switch-Disconnector?
The ABB OTM1250E3M230C is a high-performance 1250 A three-pole motorised switch-disconnector designed for remote and local isolation of high-current low-voltage electrical systems. As part of the ABB OTM motor-operated switch-disconnector range, it combines the proven switching performance of ABB OT disconnectors with an integrated motor operator for dependable automation of main switching and isolation duties.
The integrated motor mechanism operates from a 220–240 V AC control supply, making the OTM1250E3M230C suitable for remotely controlled switchboards, power distribution systems and industrial installations. Manual operation is also supported through the direct-mounted handle, providing a practical means of local control when required.
With a rated operational current of 1250 A, three-pole construction and a main-circuit rated operational voltage of up to 1000 V AC, this motorised switch-disconnector provides robust performance for demanding power applications. Its AC-23A operational power capability reaches 710 kW at 400–415 V, 900 kW at 500 V and 1200 kW at 690 V.
Key Advantages
- High-capacity 1250 A motorised switch-disconnector for industrial power systems.
- Three-pole configuration for three-phase electrical installations.
- Integrated motor operator with 220–240 V AC control voltage.
- Supports both remote motorised operation and local manual operation.
- 50 kA rated short-time withstand current for 1 s.
- High AC-23A switching performance for demanding motor and inductive loads.
- Base-mounted design with robust lug terminals for high-current connections.
- Compliant with IEC 60947-3 for low-voltage switch-disconnectors.
Key Features
- ABB OTM series motorised switch-disconnector.
- 1250 A rated operational current.
- 3-pole construction.
- 220–240 V AC motor operational voltage.
- Main-circuit rated operational voltage up to 1000 V AC.
- AC-21A rating of 1250 A at 380–415 V, 500 V, 690 V and 1000 V AC.
- AC-23A rating of 1250 A at 380–415 V, 500 V and 690 V.
- 50 kA rated short-time withstand current for 1 s.
- 110 kA rated short-circuit making capacity at 690 V.
- 12 kV rated impulse withstand voltage.
- Front operated with operating mechanism at the end of the switch.
- Direct-mounted black handle for manual operation.
Reliable Motorised Isolation for High-Current Power Systems
Motorised switch-disconnectors combine electrical isolation with powered operation, allowing switching commands to be initiated remotely from automation, supervisory or power-management systems. This makes them particularly useful where high-current circuits must be controlled without requiring an operator to actuate the switch manually at the switchboard.
The ABB OTM1250E3M230C combines an integrated 220–240 V AC motor operator with high-current ABB switch-disconnector technology. Its 1250 A three-pole construction, strong short-circuit withstand performance and manual operating capability make it suitable for main distribution boards, industrial power systems and automated electrical installations.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Motor and machinery supply isolation.
- Automated electrical switching systems.
- Remote-controlled isolation applications.
- Commercial and infrastructure power distribution.
- OEM switchgear and electrical control assemblies.
Technical Specifications
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| Poles | 3-pole | |
|---|---|---|
| Device Type | Switch Disconnector | |
| Current | 1250 A | |
| Product Series | ABB OTM | |
| Series | OTM | |
| ABB order code | 1SCA115365R1001 | |
| Product type | Motorised switch-disconnector | |
| Rated operational current | 1250 A | |
| Number of poles | 3 | |
| Motor operational voltage | 220–240 V AC | |
| Main-circuit rated operational voltage | 1000 V AC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 12 kV | |
| AC-21A rated current at 380–415 V | 1250 A | |
| AC-21A rated current at 500 V | 1250 A | |
| AC-21A rated current at 690 V | 1250 A | |
| AC-21A rated current at 1000 V | 1250 A | |
| AC-22A rated current at 380–415 V | 1250 A | |
| AC-22A rated current at 500 V | 1250 A | |
| AC-22A rated current at 690 V | 1250 A | |
| AC-23A rated current at 380–415 V | 1250 A | |
| AC-23A rated current at 500 V | 1250 A | |
| AC-23A rated current at 690 V | 1250 A | |
| AC-23A operational power at 400–415 V | 710 kW | |
| AC-23A operational power at 500 V | 900 kW | |
| AC-23A operational power at 690 V | 1200 kW | |
| Rated short-time withstand current (Icw) | 50 kA for 1 s | |
| Rated short-circuit making capacity (Icm) | 110 kA at 690 V | |
| Power loss | 29 W per pole at rated operating conditions | |
| Mechanical durability | 6000 operations | |
| Operating mode | Front operated | |
| Operating mechanism | At the end of the switch | |
| Handle type | Direct-mounted handle | |
| Handle colour | Black | |
| Mounting type | Base mounting | |
| Terminal type | Lug terminals | |
| Terminal tightening torque | 50–75 N·m | |
| Front protection rating | IP00 | |
| Pollution degree | 3 | |
| Dimensions (H × W × D) | 306 × 506.5 × 153 mm | |
| Net weight | approx. 25 kg | |
| Standard | IEC 60947-3 |
Frequently Asked Questions
What is the ABB OTM1250E3M230C used for?
The ABB OTM1250E3M230C is a motorised switch-disconnector used for remote and local switching and isolation of high-current three-phase electrical circuits in industrial and power distribution systems.
What is the current rating of the OTM1250E3M230C?
The OTM1250E3M230C has a rated operational current of 1250 A and supports AC-21A operation at voltages up to 1000 V AC.
What motor control voltage does the OTM1250E3M230C use?
The integrated motor operator is designed for a 220–240 V AC operational supply.
How many poles does the OTM1250E3M230C have?
The ABB OTM1250E3M230C is a three-pole motorised switch-disconnector designed for three-phase power circuits.
Can the OTM1250E3M230C be operated manually?
Yes. In addition to motorised operation, the OTM1250E3M230C incorporates a direct-mounted handle for manual operation.
Trusted Motorised Switching from ABB
ABB OTM motorised switch-disconnectors combine high-performance electrical isolation with integrated powered operation, providing dependable remote and manual switching for industrial distribution boards, automated power systems and demanding low-voltage installations.
