Why Choose the ABB OT400DLRR6TZ 400A 6-Pole IP65 Steel Enclosed Safety Switch?
The ABB OT400DLRR6TZ, manufacturer order number 1SCA022338R8200, is a heavy-duty 400 A six-pole steel enclosed safety switch designed for reliable manual load switching and electrical isolation in demanding industrial environments. Part of ABB's metal enclosed load-break switch range, this complete safety switch assembly combines a high-capacity switch disconnector, robust galvanised steel enclosure, external operating handle and flexible divided cable-entry system.
With a 400 A current classification and an AC-23A motor switching capability of 220 kW at 400 V AC, the OT400DLRR6TZ is suitable for appropriately rated industrial machinery and high-power electrical installations. Its six-pole switching configuration allows six conductors to be disconnected simultaneously through a single operating mechanism, making it a practical choice for engineered electrical systems requiring more switched poles than a conventional three-pole isolator.
The OT400DLRR6TZ is housed in a galvanised steel enclosure with a polyester-coated finish, providing IP65 ingress protection when correctly installed. A distinguishing feature is its divided top-and-bottom cable-entry arrangement, incorporating ring-flange entry positions that accommodate suitable cable termination accessories. The unit also includes a black pistol-type operating handle, padlocking provision, an interlocked cover and four normally open plus two normally closed auxiliary contacts for supplementary control and indication.
Key Advantages
- 400 A industrial switch disconnector for high-capacity electrical switching and isolation.
- Six-pole switching mechanism disconnects six conductors through one operating handle.
- 220 kW AC-23A motor switching capability at 400 V AC.
- 355 kW AC-23A motor switching capability at 690 V AC.
- IP65 steel enclosure provides protection against dust ingress and water jets.
- Galvanised steel construction offers mechanical durability for industrial applications.
- Polyester-coated enclosure finish supports protection against environmental exposure.
- Divided top-and-bottom cable-entry system provides flexible routing for power cables.
- Ring-flange entry provisions support the use of appropriately selected cable-entry accessories.
- Black pistol-type operating handle provides convenient external ON/OFF operation.
- Padlockable OFF position accommodates up to three padlocks for controlled maintenance isolation.
- Interlocked enclosure cover helps restrict access while the switch is energised.
- Defeatable cover interlock allows authorised access in accordance with safe working procedures.
- Six auxiliary contacts included for supplementary indication and control functions.
- Protective earth termination supports correct electrical earthing arrangements.
- Substantial 800 × 800 × 230 mm enclosure provides space for the switching assembly and cable connections.
Key Features
- Manufacturer: ABB.
- Model: OT400DLRR6TZ.
- Manufacturer order number: 1SCA022338R8200.
- Product group: 311019 – Metal Enclosed (Loadbreak).
- Product type: Metal enclosed safety switch / load-break switch disconnector.
- Number of switched poles: 6.
- Current classification: 400 A.
- Maximum motor output, AC-23A at 230 V: 110 kW.
- Maximum motor output, AC-23A at 400 V: 220 kW.
- Maximum motor output, AC-23A at 500 V: 280 kW.
- Maximum motor output, AC-23A at 690 V: 355 kW.
- Rated operational voltage: Up to 1000 V AC, subject to applicable switching ratings.
- Enclosure protection rating: IP65.
- Enclosure material: Galvanised steel.
- Enclosure finish: Polyester coating.
- Operating handle: Black pistol-type handle.
- Handle indication: I–0 / ON–OFF.
- Handle locking: Padlockable in OFF position.
- Maximum number of padlocks: 3.
- Cover interlocking: Included.
- Interlock override: Provided for authorised access.
- Cable-entry configuration: Divided top-and-bottom entries.
- Cable-entry type: Ring-flange.
- Ring-flange entry positions: 8 per side.
- Ring-flange covers supplied: 8.
- Auxiliary contacts included: 4 NO + 2 NC.
- Auxiliary contact wiring: Wired to terminal blocks.
- Protective earth terminal: Included.
- Enclosure dimensions: 800 × 800 × 230 mm.
- Approximate unit weight: 45 kg.
Technical Specifications
- Manufacturer: ABB
- Product model: OT400DLRR6TZ
- Manufacturer order number: 1SCA022338R8200
- ABB product group: 311019 – Metal Enclosed (Loadbreak)
- Product description: 400 A, 6-pole, IP65 steel enclosed safety switch with divided top-and-bottom cable entries
- Product category: Metal enclosed safety switches and load-break switch disconnectors
- Product series: ABB OT
- Number of switched poles: 6
- Current classification: 400 A
- Maximum motor output (AC-23A, 230 V): 110 kW
- Maximum motor output (AC-23A, 400 V): 220 kW
- Maximum motor output (AC-23A, 500 V): 280 kW
- Maximum motor output (AC-23A, 690 V): 355 kW
- Rated operational voltage: Up to 1000 V AC
- Switching function: Manual load switching and electrical isolation
- Utilisation category for stated motor ratings: AC-23A
- Enclosure protection rating: IP65
- Enclosure material: Galvanised steel
- Enclosure surface finish: Polyester coating
- Operating handle type: Pistol-type handle
- Operating handle colour: Black
- Handle indication: I–0 / ON–OFF
- Handle locking: Padlockable in OFF position
- Maximum padlocks: 3
- Cover interlocking: Included
- Interlock override: Defeatable by authorised personnel
- Enclosure door earthing: Through the hinges
- Cable-entry arrangement: Divided cable entries at top and bottom
- Cable-entry type: Ring-flange
- Ring-flange positions per side: 8
- Total ring-flange entry positions: 16
- Ring-flange covers supplied: 8
- Ring-flange cover knockout sizes: 25.5 mm and 40.5 mm
- Cable-entry accessory selection: Compatible glands and flanges to suit installation requirements
- Single and parallel cable arrangements: Supported by the enclosure design, subject to termination requirements
- Auxiliary contacts included: 4 NO + 2 NC
- Maximum auxiliary contact configuration: 4 NO + 2 NC
- Auxiliary contact termination: Wired to terminal blocks
- Protective earth terminal: Included
- Enclosure height: 800 mm
- Enclosure width: 800 mm
- Enclosure depth: 230 mm
- Approximate unit weight: 45 kg
- Country of origin: Finland
- Relevant switch-disconnector standard: IEC/EN 60947-3
High-Capacity Six-Pole Switching for Industrial Machinery and Power Distribution
The ABB OT400DLRR6TZ provides a substantial enclosed isolation solution for industrial electrical installations. Its six-pole switching arrangement enables six conductors to be disconnected simultaneously through a single operating mechanism. This makes it suitable for engineered applications requiring multiple switched conductors, including certain dual-circuit and specialised three-phase installations. The precise wiring arrangement must be designed according to the electrical system and applicable safety requirements.
The switch is classified at 400 A and has published AC-23A motor switching ratings of 220 kW at 400 V AC and 355 kW at 690 V AC. ABB also lists 110 kW at 230 V and 280 kW at 500 V. AC-23A is a utilisation category for switching motor loads and other highly inductive loads. The correct switch selection must account for operating voltage, load current, motor characteristics and the intended switching duty.
The galvanised steel enclosure incorporates a polyester-coated finish and provides IP65 ingress protection when correctly installed. This helps protect the internal switch assembly against dust and water jets in industrial environments. The enclosure also incorporates an internal pressure-relief design and an earthed door arrangement. These construction features support industrial use but do not remove the need for appropriate electrical protection, safe isolation procedures and suitable installation practices.
A key feature of the OT400DLRR6TZ is its divided top-and-bottom ring-flange cable-entry system. ABB specifies eight ring-flange entry positions per side, with eight ring-flange covers included. This configuration provides flexibility for incoming and outgoing cable routes and can accommodate suitably engineered single or parallel cable arrangements. The required cable glands, flanges and sealing accessories must be selected to match the installation and preserve the enclosure's ingress protection.
The switch is supplied with a black pistol-type operating handle featuring ON/OFF indication. The handle can be secured in the OFF position using up to three padlocks, supporting maintenance isolation and lockout procedures. The enclosure cover is interlocked with the switching mechanism, and the interlock can be overridden by authorised personnel where permitted by ABB's instructions and applicable safe working procedures.
The OT400DLRR6TZ also includes four normally open and two normally closed auxiliary contacts, wired to terminal blocks. These contacts may be used for supplementary indication and control functions within an appropriately designed circuit. The device is a manual switch disconnector, not an automatic circuit breaker; overload and short-circuit protective devices must be provided separately where required. Before maintenance, personnel must follow the relevant lockout and absence-of-voltage verification procedures.
Typical Applications
- 400 A industrial electrical isolation.
- Six-pole switching applications requiring simultaneous disconnection of six conductors.
- High-capacity industrial motor installations.
- 220 kW motor switching duties at 400 V AC, subject to the stated AC-23A rating.
- Manufacturing machinery and production lines.
- Industrial pumps, fans and compressors.
- Conveyor systems and material handling equipment.
- Industrial power distribution installations.
- Processing plants and heavy industrial machinery.
- OEM machinery and electrical equipment manufacturing.
- Installations requiring divided top-and-bottom cable entries.
- Maintenance isolation points requiring a steel enclosed IP65 safety switch.
