Overview
The ABB OHYS2AJ selector switch handle (part number 1SCA105296R1001) is a heavy-duty control handle accessory designed for use with ABB disconnect switches in industrial control applications. This selector handle delivers reliable, secure switching for OT-series disconnectors in three- and four-pole configurations. Built for durability and safety in demanding environments, the OHYS2AJ combines practical ergonomics with robust protection against environmental hazards.
Key Features
- IP65 Protection Rating: Provides reliable dust and moisture protection in harsh industrial environments
- Red-Yellow Color Scheme: High-visibility indicator clearly distinguishes ON and OFF positions for quick operator identification
- Padlockable Design: Supports up to 3 padlocks (5-8 mm ball diameter) for maintenance lockout and process safety
- Defeatable Function: Door-interlocked in ON position with defeat capability for controlled operation
- 6 mm Shaft Compatibility: Designed for standard ABB disconnector shafts with straightforward mechanical mounting
- NEMA Rated: Compliant with NEMA 1, 3R, and 12 standards for electrical enclosure integration
Technical Specifications
- IP Protection Rating: IP65
- Shaft Diameter: 6 mm
- Handle Colors: Red / Yellow
- Switch Indication: I-O and ON-OFF marking
- Lock Type: Padlockable (max 3 padlocks)
- Padlock Ball Diameter: 5-8 mm
- Door Drilling: 22.5 mm
- NEMA Ratings: 1, 3R, 12
- Compatible Series: OT16 – OT125F disconnectors
- Mounting: Base or DIN-rail suitable
Typical Applications
The ABB OHYS2AJ is widely used in:
- Industrial switchgear and load disconnect panels
- Motor control enclosures and variable frequency drive (VFD) cabinets
- Factory automation and equipment shutdown circuits
- Maintenance lockout/tagout (LOTO) applications
- Commercial and industrial HVAC control systems
- Power distribution and branch circuit protection
Compatibility & Replacements
Compatible With
- ABB OT16 through OT125F disconnect switches
- Three-pole and four-pole switch disconnectors
- Base-mounted and DIN-rail mounted switch housings
- Standard 6 mm rotary actuator shafts
- NEMA 1, 3R, and 12 rated electrical enclosures
Replaces / Drop-In Replacement For
- OHY series selector handles (earlier configurations)
- Verify compatibility with your system integrator before ordering for specific equipment compatibility
Works With
- ABB switch disconnector accessories and housings
- Industrial control automation platforms requiring manual isolation
- Lockout/tagout safety systems and procedures
- Enclosure-mounted disconnect switch installations








