Overview
The Allen-Bradley 194R-HS4E is a Series A disconnect switch operating handle manufactured by Rockwell Automation for industrial motor control and power distribution. This red/yellow rotary disconnect switch handle features red and yellow colors for emergency applications as well as an operating handle with a defeater mechanism. The operating handle has 2 positions which are the “on” position and the “off” position. The 194R-HS4E is equipped with a door-mounted rotary mechanism that allows independent operation of the control panel door regardless of the main contacts position.
Key Features
- NEMA Type 3R/3/12/4/4X and IP66 protection ratings
- Supports a maximum of 3 padlocks
- CE listed, UL listed, and CSA certified
- Field-mountable accessories for versatile installations in machine tools, control panels, and switchboards
- Defeater mechanism for emergency isolation
- Many mounting options allow installation in almost all types of cabinets
Technical Specifications
- Part Number: 194R-HS4E
- Series: A
- Color: Red/Yellow
- Handle Type: Door-mounted rotary
- Operating Positions: 2 (On/Off)
- Padlock Support: Maximum 3
- NEMA Rating: Type 3R/3/12/4/4X
- IP Rating: IP66
- Certifications: UL, CSA, CE
- Condition: New in Box
Typical Applications
This operating handle can be used in disconnecting switches in machine tools, control panels, panel boards, and switchboards. The 194R-HS4E is widely used in control panels, switchboards, machine tools, and other systems that require reliable power disconnection. It’s especially suited for motor control centers and panels with frequent maintenance needs. The operating handle provides the facilities for disconnection and protection against short circuits in the whole circuit or part of the circuit. It is suitable for disconnectors with self-protected isolation and a high breaking capacity.
Compatibility & Replacements
Compatible With
- Allen-Bradley IEC and UL disconnect switches in the Bulletin 194R rotary disconnect switches
- Disconnectors with self-protected isolation and high breaking capacity; inductive load rated switches
- Motor control centers
- Industrial control panels
Replaces / Drop-In Replacement For
This is an OEM operating handle accessory for Bulletin 194R disconnect switch assemblies. Verify compatibility with your specific 194R model before ordering.
Works With
- Bulletin 194R series non-fused and fused rotary disconnects
- IEC 60947-3 rated disconnect switches
- UL 508 industrial control panels
- NEMA enclosure types 3R, 3, 12, 4, and 4X




