Why Choose the ABB OT400DLCC3TZ 400A 3-Pole IP65 Steel Enclosed Safety Switch?
The ABB OT400DLCC3TZ (1SCA022281R6070) is a heavy-duty 400 A three-pole steel enclosed safety switch-disconnector designed for reliable manual load switching and local electrical isolation in industrial and commercial installations. Part of the ABB OT enclosed switch-disconnector range, it combines high-current switching performance with a durable metal enclosure and flexible C-flange cable entry provisions.
Featuring a 400 A AC-23A operational current rating at 415 V AC, the OT400DLCC3TZ is suitable for demanding three-phase electrical applications, including industrial machinery, motor feeders and power distribution equipment. ABB's current enclosed switch catalogue lists a corresponding 220 kW AC-23A motor switching capability at 415 V AC. The three-pole switching mechanism allows all three phase conductors to be disconnected together.
The switch is housed in a galvanised steel enclosure with a protective polyester coating and an IP65 protection rating. Its black pistol-grip operating handle provides clear ON/OFF indication and can be secured with up to three padlocks in the OFF position. The enclosure also features a mechanically interlocked cover with an authorised defeat facility, supporting controlled maintenance and inspection procedures.
A distinguishing feature of the OT400DLCC3TZ is its top and bottom C-flange cable entry arrangement. The enclosure provides two C-flange openings at the top and two at the bottom, supporting suitable single or parallel cable installations. The unit measures 800 × 400 × 230 mm and includes auxiliary contacts, protective earth terminal facilities and a robust surface-mounted construction.
Key Advantages
- 400 A enclosed switch-disconnector for demanding industrial electrical installations.
- Three-pole switching configuration enables simultaneous disconnection of three phase conductors.
- 220 kW AC-23A motor switching capability at 415 V AC according to ABB's current catalogue.
- IP65-rated steel enclosure provides protection against dust ingress and water jets when correctly installed.
- Galvanised steel construction with a protective polyester coating for industrial durability.
- Black pistol-grip operating handle provides clear manual ON/OFF switching.
- Padlockable OFF position accommodates up to three padlocks for controlled maintenance isolation.
- Mechanically interlocked enclosure cover helps control access to internal components.
- Defeatable cover interlock supports authorised inspection procedures in accordance with ABB instructions.
- Top and bottom C-flange cable entries provide flexible power cable routing.
- Two C-flange openings per entry side support suitable single and parallel cable arrangements.
- Auxiliary contacts included for switch-position indication and control circuit interlocking.
- Protective earth terminal facilities support correct enclosure earthing.
- Surface-mounted steel enclosure provides a durable local isolation point.
- ABB industrial switch-disconnector technology designed for reliable high-current operation.
Key Features
- ABB OT enclosed safety switch-disconnector series.
- 400 A AC-23A operational current at 415 V AC.
- 220 kW AC-23A motor switching power at 415 V AC.
- 355 kW AC-23A motor switching power at 690 V AC.
- Three-pole (3P) main switching configuration.
- Manual I-O / ON-OFF operation.
- Black pistol-grip operating handle.
- OFF-position padlocking for up to three padlocks.
- Mechanically interlocked enclosure cover.
- Authorised cover interlock defeat facility.
- IP65 enclosure protection rating.
- Galvanised steel enclosure with protective polyester coating.
- Integrated pressure relief design for managing internal pressure in specified fault conditions.
- Protective earth bonding of the enclosure door through its hinge arrangement.
- Two C-flange openings at the top.
- Two C-flange openings at the bottom.
- Two C-flange covers included.
- Compatible cable entry flanges and compression glands selected separately.
- Auxiliary contacts provided for control and indication applications.
- Surface-mounted, front-operated construction.
- 800 × 400 × 230 mm enclosure dimensions.
- Approximately 24.9 kg catalogue weight.
Technical Specifications
- Manufacturer: ABB
- Series: OT Enclosed Switch-Disconnectors
- Model: OT400DLCC3TZ
- ABB order code: OT400DLCC3TZ
- ABB product ID: 1SCA022281R6070
- ABB product group: 311019-Metal Enclosed (Loadbreak)
- Product type: Steel enclosed safety switch-disconnector
- Rated operational current AC-23A at 415 V AC: 400 A
- Rated operational current AC-23A at 690 V AC: 400 A
- Rated motor switching power AC-23A at 415 V AC: 220 kW
- Rated motor switching power AC-23A at 690 V AC: 355 kW
- Rated operational voltage: Up to 1000 V AC, subject to the applicable utilisation-category rating
- Number of poles: 3
- Switching positions: I-O / ON-OFF
- Operating mechanism: Manual pistol-grip handle
- Handle colour: Black
- Handle padlocking: Up to 3 padlocks in the OFF position
- Cover interlock: Mechanically interlocked
- Defeatable cover interlock: Yes, for authorised procedures
- Enclosure material: Galvanised steel
- Enclosure coating: Polyester protective coating
- Enclosure protection rating: IP65
- Internal pressure relief design: Included
- Door earthing arrangement: Bonded through enclosure hinges
- Mounting type: Surface mounting
- Operating direction: Front operation
- Cable entry type: C-flange / FL21-compatible arrangement
- Cable entry configuration: 2 × C-flange openings at the top and 2 × C-flange openings at the bottom
- Cable entry positions: Top and bottom
- C-flange covers included: 2
- Compatible C-flanges and compression glands: Ordered separately
- Auxiliary contacts: Included
- Maximum auxiliary contact configuration: 2NO + 1NC
- Protective earth terminal: Included
- Main circuit terminal type: Screw clamp
- Enclosure height: 800 mm
- Enclosure width: 400 mm
- Enclosure depth: 230 mm
- Dimensions (H × W × D): 800 × 400 × 230 mm
- Catalogue weight: Approximately 24.9 kg
- EAN / GTIN: 6417019070353
- Country of origin: Finland
- Applicable switch-disconnector standard: IEC 60947-3
High-Current Three-Phase Isolation with C-Flange Cable Entry Flexibility
The ABB OT400DLCC3TZ is designed to provide a clearly identifiable local isolation point for industrial electrical systems carrying substantial operating currents. Its three-pole switch-disconnector mechanism allows the three phase conductors to be opened together, supporting safe maintenance, inspection and servicing of electrical machinery and power distribution equipment.
The black pistol-grip operating handle provides straightforward manual ON/OFF switching and can be secured with up to three padlocks in the OFF position. This supports controlled isolation procedures by helping prevent unintended operation while maintenance is being carried out. The enclosure cover is mechanically interlocked with the switch mechanism and includes a defeatable interlock facility intended for authorised procedures.
The IP65 galvanised steel enclosure is designed for demanding industrial environments. Its protective polyester coating and construction support use in appropriately specified indoor and outdoor installations. ABB also identifies an integrated pressure relief function and a door earthing arrangement through the hinges. These features complement, but do not replace, correct electrical protection and safe installation practices.
A major installation advantage is the C-flange cable entry arrangement. The enclosure provides two C-flange openings at the top and two at the bottom, allowing suitable cable entry accessories to be selected for the required cable sizes and routing. The arrangement can support single or parallel cable installations where permitted by the electrical design. Compatible C-flanges and compression glands must be selected and ordered separately.
The switch includes auxiliary contact facilities that can be incorporated into appropriately designed control circuits for switch-position indication or electrical interlocking. These contacts do not provide the main power switching function and must be used within their specified electrical ratings.
As a switch-disconnector rather than an automatic protective device, the OT400DLCC3TZ does not independently provide overload or short-circuit protection. Suitable upstream circuit breakers, fuses or other protective devices must be incorporated into the electrical installation. The selected switching duty must also comply with the applicable AC-21, AC-22 or AC-23 utilisation-category ratings.
Typical Applications
- 400 A three-phase industrial electrical isolation.
- High-current machinery supply disconnection.
- Industrial motor feeder isolation.
- Manufacturing and production plant installations.
- Electrical distribution and sub-distribution systems.
- Industrial conveyor and material handling equipment.
- Large pumping stations and water treatment facilities.
- Industrial ventilation and extraction systems.
- Heating, ventilation and air conditioning plant.
- Commercial and industrial building services.
- Industrial plant rooms and electrical switchrooms.
- Process control and automation installations.
- OEM machinery and electrical equipment assemblies.
- Applications requiring top and bottom C-flange cable entries.
- Appropriately designed indoor and outdoor electrical installations.
