Why Choose the ABB OTP45B4P 45A 4-Pole Enclosed Switch Disconnector?
The ABB OTP45B4P (manufacturer order code 1SCA022401R4670) is a robust four-pole plastic enclosed switch disconnector designed for reliable manual switching and electrical isolation in industrial and commercial low-voltage installations. Part of the ABB OTP enclosed switch range, this model combines a black operating handle, IP65 enclosure protection and PG threaded cable entries in a practical, surface-mounted assembly.
The OTP45B4P provides a 45 A rated operational current under AC-23A conditions at up to 415 V AC, making it suitable for appropriately rated inductive loads and industrial machinery circuits. Its four-pole configuration allows four conductors to be switched together, supporting three-phase installations that require a switched neutral. ABB also specifies a 63 A AC-22A operational current rating at up to 690 V AC, demonstrating the importance of selecting the switch according to its intended utilisation category.
Housed in a durable grey plastic enclosure measuring 200 × 145 × 90 mm (height × width × depth), the ABB OTP45B4P offers IP65 protection when correctly installed. The unit includes a black selector-type handle with ON/OFF indication, neutral and protective earth terminals, and threaded cable-entry knockouts. Its PG29 and PG11 entry arrangement distinguishes this version from the metric-entry OTP45B4M alternative, making it particularly useful for installations specified around PG cable glands.
Key Advantages
- Four-pole switching arrangement enables simultaneous isolation of four electrical conductors.
- 45 A AC-23A operational current rating at up to 415 V AC for suitable industrial switching duties.
- 63 A AC-22A operational current rating at up to 690 V AC.
- IP65 plastic enclosure provides protection against dust ingress and water jets.
- Black selector-type operating handle offers clear ON/OFF indication.
- PG threaded cable-entry knockouts support installations using compatible PG cable glands.
- Two PG29 and one PG11 cable entries per side provide flexible cable-routing options.
- Neutral and protective earth terminals included for convenient conductor termination.
- Front-operated switching mechanism allows operation without opening the enclosure.
- Surface-mounted construction is suitable for machinery isolation points and electrical installations.
- Compact enclosed assembly combines the switch, enclosure and operating handle.
- Part of the established ABB OTP switch disconnector range, supporting consistent industrial panel design.
Key Features
- Manufacturer: ABB.
- Product series: OTP plastic enclosed switches.
- Model: OTP45B4P.
- Manufacturer order code: 1SCA022401R4670.
- Product type: Enclosed switch disconnector.
- Number of poles: 4.
- Rated operational current, AC-23A: 45 A at up to 415 V AC.
- Rated operational current, AC-22A: 63 A at up to 690 V AC.
- Enclosure protection rating: IP65.
- Enclosure material: Plastic.
- Enclosure colour: Grey.
- Operating handle: Black selector type.
- Handle indication: I–0 / ON–OFF.
- Operating arrangement: Front operated.
- Mounting: Surface mounting.
- Cable-entry type: PG threaded knockouts.
- Cable-entry arrangement: 2 × PG29 + PG11 per side.
- Neutral terminal: Included.
- Protective earth terminal: Included.
- Compression cable glands: Ordered separately.
- Enclosure dimensions: 200 × 145 × 90 mm (H × W × D).
- Approximate product weight: 1.0 kg.
Technical Specifications
- Manufacturer: ABB
- Series: OTP Plastic Enclosed Switches
- Model: OTP45B4P
- Manufacturer order code: 1SCA022401R4670
- ABB product group: 311004 – Plastic Enclosed Switches (OTP)
- Product description: 4-pole 45 A plastic enclosed switch with black handle and PG threaded entries
- Product category: Enclosed switch disconnectors
- Number of switched poles: 4
- Rated operational current (AC-23A, up to 415 V AC): 45 A
- Rated operational current (AC-22A, up to 690 V AC): 63 A
- Utilisation categories: AC-22A and AC-23A
- Electrical switching function: Manual load switching and isolation
- Operating arrangement: Front operated
- Handle type: Selector-type operating handle
- Handle colour: Black
- Handle position indication: I–0 / ON–OFF
- Enclosure material: Plastic
- Enclosure colour: Grey
- Enclosure ingress protection: IP65
- Mounting type: Surface mounting
- Cable-entry style: PG threaded knockouts
- Cable-entry arrangement per side: 2 × PG29 + 1 × PG11
- Cable-entry positions: Top and bottom
- Compression cable glands included: No – order separately
- Neutral terminal: Included
- Protective earth (PE) terminal: Included
- Enclosure height: 200 mm
- Enclosure width: 145 mm
- Enclosure depth: 90 mm
- Approximate product weight: 1.0 kg
- Product family: ABB low-voltage enclosed switch disconnectors
- Relevant product standard: IEC/EN 60947-3
Reliable Four-Pole Isolation with PG Cable Entries
The ABB OTP45B4P is designed to provide a convenient local means of disconnecting electrical equipment from its power supply. Its four-pole switching mechanism allows four conductors to be opened together using a single front-mounted operating handle. This arrangement is particularly useful in three-phase installations where the electrical design requires the neutral conductor to be switched alongside the phase conductors.
Understanding the switch's utilisation category is essential when selecting it for an installation. The OTP45B4P is rated at 63 A under AC-22A conditions at up to 690 V AC and 45 A under AC-23A conditions at up to 415 V AC. AC-22A applies to mixed resistive and inductive loads, while AC-23A covers motor loads and other highly inductive switching duties. These ratings should not be treated as interchangeable.
The PG threaded cable-entry arrangement is a defining characteristic of this model. Each cable-entry side provides two PG29 openings and one PG11 opening, enabling suitable cable glands to be selected for the connected conductors. Unlike the OTP45B4M metric-entry variant, the OTP45B4P is intended for installations using PG-compatible cable-entry accessories. Compression glands must be ordered separately and installed correctly to preserve the enclosure's protection rating.
The IP65-rated plastic enclosure provides a protective housing for the switching mechanism, making the unit suitable for industrial environments where dust and moisture exposure must be considered. The black selector handle provides clear ON/OFF indication and allows the switch to be operated from outside the enclosure. Included neutral and protective earth terminals simplify the termination of associated conductors.
As a switch disconnector, the OTP45B4P provides switching and isolation rather than automatic overload or short-circuit protection. Appropriate circuit breakers, fuses and other protective devices must be selected separately according to the electrical installation. The suitability of the device for a particular maintenance-isolation or safety function must be assessed as part of the complete electrical system.
Typical Applications
- Three-phase electrical installations requiring four-pole isolation.
- Industrial machinery and production equipment.
- Local electrical isolation points for machinery maintenance.
- Commercial and industrial distribution systems.
- Motor control and industrial equipment supply circuits.
- Manufacturing plants and production facilities.
- Pumps, fans and mechanical services equipment.
- HVAC plant and building services installations.
- Conveyor systems and material handling equipment.
- Industrial control panels and electrical cabinets.
- OEM machinery and equipment manufacturing.
- Installations requiring PG29 and PG11 threaded cable entries.
