Why Choose the ABB OTP36A4M 22 kW Plastic Enclosed Safety Switch?
The ABB OTP36A4M is a robust and reliable 4-pole plastic enclosed safety switch designed for safe electrical isolation of industrial machinery, motors and electrical equipment. As part of the ABB OTP enclosed switch-disconnector series, it provides a dependable manually operated isolation solution for industrial control systems, maintenance applications and low-voltage electrical installations.
This switch features a red and yellow rotary selector handle, providing clear ON/OFF operation for electrical isolation. Its rigid glass-fibre-reinforced polycarbonate enclosure offers excellent mechanical durability, UV resistance and protection against dust and water ingress. The IP65 protection rating makes the OTP36A4M suitable for demanding industrial environments, including appropriately installed indoor and outdoor applications.
With a rated operational power of 22 kW at 400–415 V AC under AC-23A utilisation conditions, a 45 A AC-23A operational current rating and a 4-pole switching configuration, the OTP36A4M is suitable for industrial motor isolation and electrical distribution applications. The switch also includes one normally open auxiliary contact, fixed neutral and protective earth terminals, a padlockable operating handle and an interlocked enclosure cover.
Key Advantages
- Heavy-duty 4-pole enclosed safety switch for industrial machinery and electrical isolation.
- 22 kW motor switching capability at 400–415 V AC under AC-23A conditions.
- 45 A AC-23A operational current rating for compatible motor and inductive loads.
- IP65-rated plastic enclosure provides protection against dust and low-pressure water jets.
- Red and yellow rotary selector handle provides clear ON/OFF indication.
- Padlockable OFF position supports controlled isolation during maintenance.
- Interlocked enclosure cover helps prevent access during normal energised operation.
- Defeatable cover interlocking allows authorised maintenance access when required.
- One normally open auxiliary contact supports electrical status indication and control circuit integration.
- Glass-fibre-reinforced polycarbonate housing offers durability and UV resistance.
- Integrated neutral and protective earth terminals simplify electrical installation.
- Threaded knock-out cable entries support flexible top and bottom cable routing.
Key Features
- ABB OTP plastic enclosed safety switch series.
- 4-pole switch-disconnector configuration.
- 22 kW AC-23A operational power rating at 400–415 V AC.
- 45 A AC-23A rated operational current at 380–415 V AC.
- IP65 enclosure protection rating.
- Red and yellow ON/OFF selector handle.
- Padlockable handle accommodating up to three padlocks.
- Interlocked enclosure cover with defeatable interlocking.
- One normally open (1 NO) auxiliary contact fitted as standard.
- Provision for up to 2 NO + 2 NC auxiliary contacts with suitable accessories.
- Fixed neutral and protective earth terminals.
- UV-resistant, glass-fibre-reinforced polycarbonate enclosure.
- IK08 impact resistance classification.
- Top and bottom threaded knock-out cable entries.
- Suitable for wall mounting near industrial machinery and electrical equipment.
- Designed for local electrical isolation and maintenance switching.
Technical Specifications
- Manufacturer: ABB
- Series: OTP Plastic Enclosed Safety Switches
- Model: OTP36A4M
- ABB order code: OTP36A4M
- ABB product ID: 1SCA022401R1490
- Product group: Plastic Enclosed Switches (OTP)
- Product type: Enclosed safety switch-disconnector
- Rated operational power AC-23A: 22 kW at 400–415 V AC
- Rated operational current AC-23A: 45 A at 380–415 V AC
- Rated operational current AC-22A: 63 A at 380–415 V AC
- Number of poles: 4
- Switching function: Manual ON/OFF isolation
- Operating mechanism: Rotary selector handle
- Handle colour: Red / Yellow
- Rated insulation voltage (Ui): 750 V
- Rated short-time withstand current (Icw): 1.5 kA
- Protection rating: IP65
- Impact resistance: IK08
- Enclosure material: Glass-fibre-reinforced polycarbonate
- Enclosure colour: Grey, RAL 7035
- UV protection: UV-resistant enclosure
- Auxiliary contacts included: 1 NO + 0 NC
- Maximum auxiliary contacts: 2 NO + 2 NC
- Neutral terminal: Included
- Protective earth terminal: Included
- Cover interlocking: Interlocked, defeatable
- Padlocking: Up to 3 padlocks
- Cable entry positions: Top and bottom
- Cable knock-out openings: 2 × M32 + M16 per side
- Main circuit connection: Screw clamp terminals
- Main circuit conductor cross-section: 1.5–35 mm²
- Mounting type: Surface / wall mounting
- Dimensions (H × W × D): 200 × 145 × 90 mm
- Net weight: Approximately 0.96 kg
- EAN: 6417019130996
Reliable Electrical Isolation for Industrial Machinery and Motor Control
Enclosed safety switches such as the ABB OTP36A4M provide a manually operated means of disconnecting electrical equipment from its power supply. The switch uses a mechanical switch-disconnector mechanism to open the main electrical contacts when the handle is moved to the OFF position. This allows maintenance personnel to isolate connected machinery and equipment before inspection, servicing or repair.
The OTP36A4M is designed for installation near industrial motors, machinery and electrical equipment requiring local isolation. Its 4-pole construction provides simultaneous switching of four conductors, while the red and yellow handle clearly identifies the isolation control. The padlockable operating mechanism supports maintenance isolation procedures, and the interlocked enclosure cover helps restrict access to live components during normal operation.
The integrated 1 NO auxiliary contact can be incorporated into compatible signalling or control circuits to indicate switch status. The rigid IP65 polycarbonate enclosure protects the switching assembly against environmental conditions commonly encountered in industrial facilities. The switch must be installed with suitable upstream circuit protection and in accordance with the electrical requirements of the connected equipment.
Typical Applications
- Local isolation of industrial motors and machinery.
- Electrical isolation for pumps, fans and ventilation equipment.
- Industrial conveyor and material handling systems.
- Manufacturing and production machinery.
- Packaging and processing equipment.
- Industrial maintenance and service isolation points.
- Outdoor electrical equipment requiring IP65 protection.
- Industrial control panels and electrical distribution installations.
- Commercial and industrial building services.
- OEM machinery and automation equipment requiring enclosed safety switches.
