Why Choose the ABB OTP36A3M 3-Pole Enclosed Switch-Disconnector?
The ABB OTP36A3M (1SCA022399R6830) is a robust 3-pole, 22 kW plastic enclosed switch-disconnector designed for reliable manual switching and electrical isolation in industrial machinery, motor installations and electrical distribution systems. Part of the ABB OTP enclosed safety switch range, it combines a durable grey enclosure, highly visible red and yellow operating handle and integrated switching mechanism in a complete assembly.
Rated for 22 kW motor switching at 380–415 V AC under AC-23A conditions, the OTP36A3M provides a rated operational current of 45 A in AC-23A duty and 63 A in AC-22A duty at the same voltage range. Its three-pole configuration allows simultaneous switching of three-phase electrical circuits, making it suitable for machinery supply isolation, motor disconnecting and industrial maintenance applications.
The OTP36A3M features an IP65-rated plastic enclosure, an IK08 impact resistance rating and a red and yellow selector handle with clear ON/OFF indication. It is supplied with one normally open auxiliary contact, a fixed neutral terminal, protective earth terminals and cable-entry knockouts. The enclosure also incorporates a cover interlock with a defeatable interlocking facility, supporting controlled access and practical installation in industrial environments.
Key Advantages
- 3-pole enclosed switch-disconnector for three-phase electrical isolation and switching.
- 22 kW motor switching capability at 380–415 V AC under AC-23A operating conditions.
- 45 A AC-23A rated operational current for suitable motor and inductive load switching.
- 63 A AC-22A rated operational current for appropriate mixed resistive and inductive loads.
- 80 A conventional enclosed thermal current rating for the specified installation conditions.
- IP65 enclosure protection provides resistance to dust and water jets.
- IK08 impact resistance supports installation in demanding industrial environments.
- Red and yellow operating handle provides clearly identifiable ON/OFF switching.
- Padlockable handle supports controlled electrical isolation and maintenance procedures.
- Cover interlocking mechanism helps restrict enclosure access when the switch is ON.
- One normally open auxiliary contact included for compatible signalling and control circuits.
- Fixed neutral and protective earth terminals simplify suitable electrical connections.
- Top and bottom cable-entry knockouts provide flexibility during enclosure installation.
- Complete plastic enclosed assembly reduces the need to select a separate switch, enclosure and handle.
Key Features
- ABB OTP36A3M enclosed switch-disconnector from the OTP range.
- ABB order code: OTP36A3M.
- ABB manufacturer part number: 1SCA022399R6830.
- Number of poles: 3.
- Rated motor switching power: 22 kW at 380–415 V AC, AC-23A.
- Rated AC-23A operational current: 45 A at 380–415 V AC.
- Rated AC-22A operational current: 63 A at 380–415 V AC.
- Conventional thermal current: 80 A when fully enclosed.
- Rated operational voltage: Up to 750 V AC for the main circuit.
- Enclosure material: Plastic.
- Enclosure colour: Grey.
- Handle colour: Red and yellow.
- Handle type: Rotary selector handle.
- Protection rating: IP65.
- Impact resistance: IK08.
- Auxiliary contacts included: 1 normally open (1 NO).
- Maximum auxiliary contact configuration: 2 NO + 2 NC.
- Neutral connection: Fixed neutral terminal included.
- Protective earth connections: PE terminals included.
- Cable entries: Knockout openings at the top and bottom of the enclosure.
- Cover interlock: Included, with an authorised defeat facility.
- Enclosure dimensions: 200 × 145 × 90 mm.
- Unit weight: Approximately 0.9 kg.
- Applicable standards: IEC 60947-1 and IEC 60947-3.
Technical Specifications
- Manufacturer: ABB
- Series: OTP Plastic Enclosed Switches
- Model: OTP36A3M
- Manufacturer part number: 1SCA022399R6830
- ABB order code: OTP36A3M
- ABB product group: 311004 – Plastic Enclosed Switches (OTP)
- Product type: Enclosed switch-disconnector / safety switch
- Number of poles: 3
- Electrical configuration: 3-pole, three-phase switching
- 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
- 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 500 V: 63 A
- Rated operational current AC-22A at 690 V: 63 A
- Conventional thermal current, fully enclosed: 80 A
- Rated operational voltage, main circuit: 750 V
- Rated insulation voltage: 750 V
- Rated impulse withstand voltage: 1.5 kV
- Rated short-time withstand current: 1.5 kA for 1 s
- Rated short-circuit making capacity: 2.1 kA at 690 V AC
- Enclosure material: Plastic
- Enclosure colour: Grey
- Operating handle: Red and yellow selector handle
- Operating positions: I–O / ON–OFF
- Handle padlocking: Yes
- Enclosure protection rating: IP65
- Enclosure impact resistance: IK08
- Cover interlock: Included
- Cover interlock defeat facility: Included
- Auxiliary contacts supplied: 1 NO
- Maximum auxiliary contacts: 2 NO + 2 NC
- Neutral terminal: Fixed neutral included
- Protective earth terminals: Included
- Main terminal connection: Screw clamp
- Main conductor capacity: 1.5–35 mm²
- Main terminal tightening torque: 2 N·m
- Main conductor stripping length: 13 mm
- Cable entries, top: 2 × M32 + M16 knockouts
- Cable entries, bottom: 2 × M32 + M16 knockouts
- 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
- Standards: IEC 60947-1, IEC 60947-3
- Country of origin: Finland
- EAN: 6417019130255
Reliable Three-Phase Isolation and Motor Switching for Industrial Installations
Enclosed switch-disconnectors such as the ABB OTP36A3M provide a practical means of manually connecting and disconnecting electrical supplies to machinery and industrial equipment. The integrated three-pole switching mechanism operates all three main poles together, allowing a three-phase supply to be disconnected through a single external operating handle.
The OTP36A3M is designed for 22 kW motor switching at 380–415 V AC under AC-23A duty. The AC-23A utilisation category applies to switching motor loads and other highly inductive loads, making the device suitable for appropriately rated industrial motor circuits. At 380–415 V AC, the switch provides a rated operational current of 45 A under AC-23A conditions and 63 A under AC-22A conditions.
The integrated red and yellow rotary selector handle provides a clear ON/OFF operating interface outside the enclosure. Its padlocking capability supports controlled isolation procedures, while the cover interlocking mechanism helps prevent normal opening of the enclosure while the switch is in the ON position. An authorised defeat facility is provided for situations requiring controlled access in accordance with the manufacturer's instructions and electrical safety procedures.
The IP65 grey plastic enclosure protects the installed switch against dust ingress and water jets, while its IK08 impact resistance supports operation in demanding industrial environments. Top and bottom cable-entry knockouts accommodate suitable cable glands and installation arrangements, allowing the switch to be incorporated into machinery supply circuits and electrical distribution systems.
For additional control and indication, the OTP36A3M is supplied with one normally open auxiliary contact. This can be incorporated into compatible signalling or control circuits to indicate a switching condition or support an interlocking arrangement. The assembly also includes a fixed neutral terminal and protective earth connections for suitable wiring arrangements.
The OTP36A3M is a switch-disconnector rather than an automatic circuit breaker. It provides manual switching and isolation but does not independently provide overload or short-circuit protective tripping. Appropriate upstream protection, conductor sizing and installation methods must be selected for the complete electrical system.
Typical Applications
- Industrial motor isolation: Providing local manual disconnection for suitably rated three-phase motors.
- 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 isolation for production and processing equipment.
- Conveyor systems: Disconnecting three-phase supplies to compatible conveyor drive installations.
- Pumps and pumping stations: Providing enclosed manual isolation for suitable motor circuits.
- Industrial ventilation: Switching and isolating compatible fan and ventilation equipment.
- Electrical distribution systems: Providing local switching and isolation of suitable three-phase circuits.
- Packaging equipment: Supporting safe maintenance access through local electrical isolation.
- Building services: Providing switching for appropriately rated mechanical and electrical equipment.
- OEM machinery: Integrating a complete enclosed switch-disconnector into new industrial equipment.
- Industrial equipment upgrades: Replacing compatible enclosed switches where electrical ratings and installation requirements are satisfied.
