OT400E12P ABB 400A 3-Pole Switch-Disconnector

OT400E12P ABB 400A 3-Pole Switch-Disconnector

ABB OT400E12P is a 400 A three-pole front-operated base-mounted switch-disconnector with its mechanism positioned between the poles and a supplied black handle and adjustable shaft for dependable industrial switching and electrical isolation.

SKU: OT400E12PAlt SKU: 1SCA022727R5750MPN: OT400E12P
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List Price £437.60 ex VAT
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Why Choose the ABB OT400E12P 400A 3-Pole Switch-Disconnector?

The ABB OT400E12P is a heavy-duty 400 A three-pole switch-disconnector designed for reliable load switching and electrical isolation in industrial low-voltage power systems. Part of the ABB OT switch-disconnector range, it provides simultaneous three-phase disconnection for switchboards, machinery and power-distribution applications.

The OT400E12P features a front-operated mechanism positioned between the poles, identified by ABB's mechanism arrangement 12. Its base-mounted construction uses lug terminals and is supplied with a black ON-OFF pistol handle and adjustable operating shaft, providing the principal operating components required for enclosure integration.

Rated at 400 A, the OT400E12P provides 400 A AC-21A, AC-22A and AC-23A operational current up to 690 V AC. It has a 1000 V rated operational and insulation voltage, 12 kV impulse withstand voltage and 15 kA for 1 s short-time withstand current for demanding industrial switching duties.

Key Advantages

  • Heavy-duty 400 A three-pole switch-disconnector for industrial switching and isolation.
  • Mechanism positioned between the poles for centred front operation.
  • 400 A AC-23A rating up to 690 V AC for demanding load-switching applications.
  • 230 kW AC-23A operational power at 400–415 V AC.
  • 15 kA for 1 s short-time withstand current provides robust electrical performance.
  • Supplied with a black IP65 ON-OFF pistol handle and adjustable operating shaft.

Key Features

  • ABB OT switch-disconnector series.
  • 400 A rated current.
  • 3-pole switching configuration.
  • Mechanism between the poles, arrangement 12.
  • Front-operated construction.
  • Base-mounted installation.
  • 1000 V rated operational voltage.
  • 1000 V rated insulation voltage.
  • 12 kV rated impulse withstand voltage.
  • 400 A AC-21A, AC-22A and AC-23A ratings up to 690 V AC.
  • 15 kA for 1 s rated short-time withstand current.
  • Black ON-OFF pistol handle and adjustable shaft included.

High-Performance Three-Phase Switching and Electrical Isolation

Switch-disconnectors provide a defined means of manually switching electrical loads and establishing circuit isolation for operation, servicing and maintenance. The three-pole ABB OT400E12P enables all three phase conductors to be switched simultaneously, while its mechanism-between-poles arrangement provides a centred operating configuration for industrial switchboard installations.

The OT400E12P combines a 400 A current rating, three-pole construction and mechanism arrangement 12 with strong AC-23A performance. Its 15 kA for 1 s short-time withstand capability, 1000 V operational voltage and supplied handle-and-shaft assembly make it suitable for demanding industrial power-distribution and machinery-isolation applications.

Typical Applications

  • Industrial main-switch and electrical-isolation applications.
  • Three-phase low-voltage power-distribution systems.
  • Industrial switchboards and distribution panels.
  • Machinery and process-equipment isolation.
  • Manufacturing and production facilities.
  • High-current local switching and maintenance isolation.

Technical Specifications

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Poles 3-pole
Device Type Switch Disconnector
Current 400 A
Power 132 kW
Product Series ABB OT
Series OT Switch-Disconnectors
ABB order code 1SCA022727R5750
Product group 311027-OT Switches
Product type Switch-disconnector
Rated current 400 A
Conventional free-air thermal current 400 A
Fully enclosed conventional thermal current 400 A
Number of poles 3
Rated operational voltage 1000 V
Rated insulation voltage 1000 V
Rated impulse withstand voltage 12 kV
Rated operational current AC-21A at 380–415 V 400 A
Rated operational current AC-21A at 500 V 400 A
Rated operational current AC-21A at 690 V 400 A
Rated operational current AC-22A at 380–415 V 400 A
Rated operational current AC-22A at 500 V 400 A
Rated operational current AC-22A at 690 V 400 A
Rated operational current AC-23A at 380–415 V 400 A
Rated operational current AC-23A at 500 V 400 A
Rated operational current AC-23A at 690 V 400 A
Rated operational power AC-23A at 220–240 V 132 kW
Rated operational power AC-23A at 400–415 V 230 kW
Rated operational power AC-23A at 500 V 280 kW
Rated operational power AC-23A at 690 V 400 kW
Rated short-time withstand current 15 kA for 1 s
Rated short-circuit making capacity at 690 V 65 kA
Operating method Front operated
Mechanism arrangement Between the poles, 12
Mounting type Base mounting
Terminal type Lug terminals
Terminal width 25 mm
Handle Black ON-OFF pistol handle included
Operating shaft Adjustable shaft included
Handle protection IP65 when correctly installed
Mechanical durability 16,000 operations
Standard IEC 60947-3
Approximate dimensions (W × H × D) 196 × 185 × 107 mm
Product weight approx. 3.1 kg

Frequently Asked Questions

What is the ABB OT400E12P?

The ABB OT400E12P is a 400 A three-pole front-operated switch-disconnector with its operating mechanism positioned between the poles for industrial load switching and electrical isolation.

What is the current rating of the ABB OT400E12P?

The OT400E12P has a rated current of 400 A and provides 400 A AC-21A, AC-22A and AC-23A operational current ratings up to 690 V AC.

How many poles does the OT400E12P have?

The OT400E12P has a three-pole configuration, enabling all three phase conductors of a three-phase circuit to be switched and isolated simultaneously.

Where is the operating mechanism positioned on the OT400E12P?

The OT400E12P uses ABB's mechanism-between-the-poles arrangement 12, providing centred front operation.

What is the AC-23A power rating of the ABB OT400E12P?

The OT400E12P provides AC-23A operational power ratings of 132 kW at 220–240 V, 230 kW at 400–415 V, 280 kW at 500 V and 400 kW at 690 V AC.

What is the short-time withstand current of the OT400E12P?

The OT400E12P has a rated short-time withstand current of 15 kA for 1 s.

Are the handle and shaft included with the ABB OT400E12P?

Yes. The OT400E12P is supplied with a black ON-OFF pistol handle and adjustable operating shaft. The handle provides IP65 protection when correctly installed and is padlockable in the OFF position.

Trusted by Industrial Electrical Professionals Worldwide

ABB OT switch-disconnectors are widely used in industrial power distribution, machinery and switchboard applications where dependable load switching, secure electrical isolation and robust high-current performance are required.