Overview
The Honeywell LSZ1A limit switch is a side rotary actuator head engineered for use with Honeywell’s HDLS series heavy-duty limit switches. This limit switch accessory is specifically designed to be used with HDLS series switches, providing a modular solution for industrial applications requiring precise motion control and reliable electrical switching.
Key Features
- Plug-in construction reduces downtime by enabling removal of the unit without disconnecting wiring or conduit
- RoHS compliant design for environmental and regulatory compliance
- Side actuator location with rotary actuator style
- Ample wiring space for simplified installation and maintenance
- Can be used to replace broken actuators rather than having to replace the switch, reducing replacement costs
- Designed for a wide variety of industrial applications
Technical Specifications
The LSZ1A delivers reliable performance across demanding industrial environments with the following specifications:
- Voltage Rating: 600V AC/250V DC
- Actuator Type: Rotary actuator, side location
- Travel Characteristics: Differential travel 5° maximum, overtravel 60° minimum, pretravel 15° maximum
- Operating Force: 4 in-lb
- Movement: CW and CCW (clockwise and counter-clockwise)
- Operating Temperature: 10°F to 250°F (-12°C to 121°C)
- NEMA Rating: 1, 3, 4, 4X, 6, 6P
- Certifications: UL, CSA
- Standards: RoHS compliant
Typical Applications
The Honeywell LSZ1A is widely used in industrial automation, machinery control, and process monitoring applications including:
- Packaging machinery and conveyor systems requiring position sensing
- Heavy-duty manufacturing equipment and press automation
- HVAC and facility management systems
- Rotary motion detection and equipment guarding
- Retrofit and replacement installations where switch modularity reduces downtime
Compatibility & Replacements
Compatible With
- HDLS series switches
- Heavy-duty limit and enclosed switches
- HDLS LSXA3K switch bases
- Industrial machinery and equipment utilizing Honeywell switch platforms
Replaces / Drop-In Replacement For
The LSZ1A operating head serves as a direct replacement actuator head for existing HDLS series limit switch installations. This range of HDLS actuators can be used to replace broken actuators rather than having to replace the switch, allowing cost-effective field repairs of damaged actuator heads without replacing the entire switch assembly.
Works With
- HDLS series limit switch bodies and control modules
- Industrial control systems and safety interlocks
- Machinery guarding and position sensing circuits
- Standard electrical enclosures and switchgear rated for 600V AC/250V DC switching














