Why Choose the ABB OTP45BA4M 4-Pole IP65 Enclosed Switch-Disconnector?
The ABB OTP45BA4M is a robust 4-pole, IP65 plastic enclosed switch-disconnector designed for dependable manual switching and electrical isolation in industrial machinery, motor installations and low-voltage distribution systems. Part of the ABB OTP enclosed switch range, it combines a durable grey enclosure, a highly visible red and yellow operating handle and a four-pole switching mechanism in one complete assembly.
The OTP45BA4M is identified by the supplied product specification as a 15 kW, 4-pole enclosed switch. ABB's published technical data also specifies a 22 kW AC-23A motor switching rating at 380–415 V AC and a 15 kW rating at 690 V AC. Its rated operational current is 45 A AC-23A at 380–415 V AC, making it suitable for appropriately rated motor and inductive-load switching applications.
Featuring an IP65-rated grey plastic enclosure, IK08 impact resistance and a red and yellow selector-type operating handle, the OTP45BA4M is designed for demanding industrial environments. It includes neutral and protective earth terminals, an interlocked enclosure cover with a defeatable interlocking facility and metric cable-entry knockouts for flexible installation.
Key Advantages
- 4-pole enclosed switch-disconnector for applications requiring simultaneous switching of four conductors.
- 45 A AC-23A operational current rating at 380–415 V AC.
- 22 kW AC-23A motor switching capability at 380–415 V AC.
- 15 kW AC-23A motor switching capability at 690 V AC.
- 63 A AC-22A operational current rating at 380–415 V AC.
- IP65 enclosure protection against dust and water jets when correctly installed.
- IK08 impact resistance for demanding industrial environments.
- Red and yellow selector handle with clear ON/OFF indication.
- Padlockable operating handle supporting controlled maintenance isolation.
- Cover interlocking mechanism helps restrict normal enclosure access while the switch is ON.
- Neutral and protective earth terminals included for suitable electrical installations.
- Top and bottom metric cable-entry knockouts provide practical wiring flexibility.
- Compact enclosed construction suitable for machinery and electrical distribution applications.
- Genuine ABB OTP product designed for industrial electrical switching and isolation.
Key Features
- ABB OTP45BA4M plastic enclosed safety switch-disconnector.
- ABB order code: OTP45BA4M.
- ABB manufacturer part number: 1SCA022459R6860.
- Product series: ABB OTP.
- Number of poles: 4.
- Rated operational current AC-23A: 45 A at 380–415 V AC.
- Rated operational current AC-22A: 63 A at 380–415 V AC.
- Rated motor switching power AC-23A: 22 kW at 380–415 V AC.
- Rated motor switching power AC-23A: 15 kW at 690 V AC.
- Rated insulation voltage: 750 V.
- Enclosure material: Plastic.
- Enclosure colour: Grey.
- Ingress protection: IP65.
- Impact resistance: IK08.
- Handle type: Rotary selector handle.
- Handle colour: Red and yellow.
- Handle padlocking: Up to three padlocks.
- Operating positions: I–O / ON–OFF.
- Cover interlock: Included, with authorised defeat facility.
- Auxiliary contacts supplied: None.
- Maximum auxiliary contact configuration: 2 NO + 2 NC.
- Neutral arrangement: Fixed and switchable neutral.
- Protective earth terminals: Included.
- Cable-entry knockouts: 2 × M32 + M16 at the top and bottom.
- Enclosure dimensions: 200 × 145 × 90 mm.
- Approximate net weight: 0.9 kg.
Technical Specifications
- Manufacturer: ABB
- Series: OTP Plastic Enclosed Switches
- Model: OTP45BA4M
- Manufacturer part number: 1SCA022459R6860
- ABB order code: OTP45BA4M
- ABB product group: 311004 – Plastic Enclosed Switches (OTP)
- Product type: Enclosed switch-disconnector / safety switch
- Number of poles: 4
- Rated operational current AC-23A at 380–415 V: 45 A
- Rated operational current AC-23A at 500 V: 45 A
- Rated operational current AC-23A at 690 V: 20 A
- Rated operational current AC-22A at 380–415 V: 63 A
- Rated operational current AC-22A at 690 V: 63 A
- Rated operational power AC-23A at 380–415 V: 22 kW
- Rated operational power AC-23A at 500 V: 22 kW
- Rated operational power AC-23A at 690 V: 15 kW
- Conventional thermal current, fully enclosed: 63 A
- Rated operational voltage, main circuit: 750 V
- Rated insulation voltage: 750 V
- Rated impulse withstand voltage: 1 kV
- Rated short-time withstand current: 1 kA for 1 s
- Rated short-circuit making capacity: 1.4 kA at 690 V AC
- Power loss at rated operating conditions: 1.5 W per pole
- Enclosure material: Plastic
- Enclosure colour: Grey
- Enclosure protection rating: IP65
- Impact resistance: IK08
- Operating handle: Selector-type rotary handle
- Handle colour: Red / yellow
- Handle padlocking: Up to 3 padlocks
- Cover interlocking: Included
- Defeatable cover interlock: Included
- Auxiliary contacts fitted: 0 NO, 0 NC
- Maximum auxiliary contacts: 2 NO + 2 NC
- Neutral type: Fixed and switchable neutral
- Protective earth terminals: 2
- Main circuit terminal type: Screw clamp
- Main conductor connection capacity: 1.5–35 mm²
- Cable-entry positions: Top and bottom
- Cable-entry knockouts: 2 × M32 + M16 per side
- Cable glands: Ordered separately
- Enclosure height: 200 mm
- Enclosure width: 145 mm
- Enclosure depth: 90 mm
- Dimensions (H × W × D): 200 × 145 × 90 mm
- Net weight: Approximately 0.9 kg
- Pollution degree: 3
- Applicable standards: IEC 60947-1 and IEC 60947-3
- RoHS status: Following EU Directive 2011/65/EU
Reliable Four-Pole Electrical Isolation for Industrial Machinery
The ABB OTP45BA4M provides a practical means of manually switching and isolating low-voltage electrical circuits where a four-pole configuration is required. Its integrated switching mechanism allows the designated conductors to be operated together through one external handle, making it suitable for appropriately designed three-phase and neutral switching arrangements.
ABB specifies a 45 A AC-23A operational current rating at 380–415 V AC, corresponding to a 22 kW motor switching rating. At 690 V AC, the AC-23A motor switching rating is 15 kW. These figures demonstrate why the applicable supply voltage and utilisation category must be considered when selecting an enclosed switch-disconnector.
The four-pole configuration provides additional switching capability compared with conventional three-pole units. The OTP45BA4M is described by ABB as having a fixed and switchable neutral arrangement, making it suitable for installations where the neutral configuration must be considered as part of the overall electrical design.
The external red and yellow selector handle provides clearly marked ON and OFF positions. It is padlockable with up to three padlocks, supporting controlled maintenance isolation procedures. The enclosure cover is interlocked with the operating mechanism and incorporates a defeatable interlocking facility for authorised access in accordance with ABB's installation instructions.
The IP65 grey plastic enclosure helps protect the switching equipment against dust ingress and water jets. Its IK08 impact resistance provides additional mechanical durability. The enclosure includes 2 × M32 + M16 metric cable-entry knockouts at both the top and bottom, allowing suitable cable glands to be selected for the installation.
For electrical integration, the OTP45BA4M includes neutral and protective earth terminals. No auxiliary contacts are fitted as standard, but compatible accessories can be selected where auxiliary signalling is required, up to the manufacturer's specified maximum arrangement of 2 normally open and 2 normally closed contacts.
The OTP45BA4M is a manual switch-disconnector rather than an automatic circuit breaker. It does not independently provide overload or short-circuit protective tripping. Suitable upstream protection, conductor sizing, earthing arrangements and safe isolation procedures must be incorporated into the complete installation.
Typical Applications
- Four-pole electrical isolation: Switching designated conductors in suitable three-phase and neutral arrangements.
- Industrial motor installations: Providing manual isolation for appropriately rated motor circuits.
- Machinery main switches: Serving as an enclosed supply switching device for industrial equipment.
- Maintenance isolation: Supporting controlled electrical disconnection before equipment servicing.
- Manufacturing machinery: Providing local switching for production and processing equipment.
- Industrial electrical distribution: Supporting manual switching of suitable low-voltage circuits.
- Pumping installations: Providing isolation for compatible pump motor supplies.
- Ventilation and HVAC equipment: Supporting local electrical switching of appropriately rated plant.
- Conveyor systems: Providing manual isolation of suitable motor-driven equipment.
- OEM machinery: Integrating a complete four-pole enclosed switch into new industrial equipment.
- Electrical panel installations: Providing an externally accessible switch-disconnector with an IP65 enclosure.
- Industrial equipment upgrades: Replacing compatible enclosed switches where the electrical and mechanical specifications match.
