Overview
The Micro Switch LSYDC5KQ-FP is a heavy-duty limit switch from Honeywell’s HDLS (Heavy-Duty Limit Switches) series, engineered for reliable position sensing and motion control in industrial machinery. This fully potted switch delivers factory-sealed construction for protection in harsh environments. The 1NC/1NO (SPDT) snap-action contact arrangement provides positive switching with consistent repeatability, making it ideal for end-of-travel sensing, safety interlocks, and equipment protection in manufacturing and automation systems.
Key Features
- Snap Action Design: 1NC/1NO (SPDT) configuration ensures positive, reliable switching with no ambiguous states
- Factory Sealed (FP): Fully potted construction provides maximum resistance to moisture, dust, and harsh operating conditions
- Top Roller Plunger Actuator: Distributed load design reduces wear and provides consistent repeatability across millions of cycles
- Integral 5-Pin Connector: Mini-style male connector eliminates field wiring errors and speeds installation
- Heavy-Duty Construction: Designed for machine tool, press, and production line applications requiring long service life
- Optional 120 Vac Indicator: Confirm power status at the switch with integrated pilot light option
Technical Specifications
- Electrical Rating: 10A @ 120V AC
- Contact Arrangement: 1NC/1NO (SPDT)
- Actuator Type: Top roller plunger
- Termination: 5-pin mini-style integral male connector
- Sealing: Fully potted (factory sealed)
- Operating Temperature Range: -12°C to 121°C (10°F to 250°F)
- Snap Action: Momentary contact closure/opening
- Series: HDLS (Heavy-Duty Limit Switches)
- Condition: Used, fully functional
Typical Applications
The Micro Switch LSYDC5KQ-FP is commonly deployed in:
- Machine tool limit and stop control circuits
- Press and punch machine end-of-stroke sensing
- Conveyor system position detection and safety interlocks
- Production equipment safety gate and access interlocks
- Automotive assembly equipment motion sensing
- Textile and packaging machinery position feedback
- Hydraulic and pneumatic system pressure relief interlock circuits
Compatibility & Replacements
Compatible With
- Industrial machine control circuits rated 120V AC, 10A maximum
- Snap-action safety interlock systems
- End-of-travel and position sensing applications
- Standard 120V AC industrial control systems
- Machine tool builders using Honeywell limit switch platforms
Replaces / Drop-In Replacement For
Verify compatibility with your equipment OEM or system integrator before ordering. The LSYDC5KQ-FP designation indicates top roller plunger with SPDT snap action and integral 5-pin connector; other HDLS series variants (such as LSYDC3KQ, LSYDC4LX) feature different actuator types, contact arrangements, or termination styles and are not direct replacements.
Works With
- 120V AC industrial control relays and contactor circuits
- Snap-action safety interlock systems (TÜV-certified equipment)
- Standard machine tool control panels with 120V AC logic circuits
- Honeywell HDLS series mounting bases and connectors
- Field-replaceable HDLS lever and actuator assemblies
