Overview
The Honeywell 1LN1-5-LH is a precision limit switch from Honeywell’s MICRO SWITCH LN series designed for industrial machinery and equipment position sensing. This SPDT (Single-Pole Double-Throw) switch provides rated contact capability of 10A at 250VAC and 1/2 HP at 125VAC, making it suitable for motor controls and power circuit applications requiring reliable actuation detection.
Key Features
- SPDT Contact Configuration: Single-pole double-throw design enables flexible circuit wiring for normally-open and normally-closed logic.
- Sealed Housing: Individual seals around each leadwire and protective cover plate guard switch cavity against condensate, oil, and dust ingress.
- Hammer-Blow Durability: LN series switches withstand rapid impact and plunger actuation without affecting precision internal contacts.
- Top Plunger Actuator: Left-hand (LH) configuration positions actuator on left side for convenient mounting in confined spaces.
- Wire Lead Connection: No. 14 HWM type wire leads with 1/2-in. conduit hub for direct panel or cable routing.
Technical Specifications
- Contact Voltage AC (Max): 250V
- Contact Current AC (Max): 10A
- Motor Rating (125VAC): 1/2 HP
- Contact Configuration: SPDT
- Actuator Type: Top Plunger
- Actuator Position: Left-Hand (LH)
- Operating Force: 26.7N maximum
- Wire Lead Type: No. 14 HWM
- Conduit Hub: 1/2-inch NPT
- Product Series: LN
- Manufacturer: Honeywell Sensing & Control
- RoHS Compliant: Yes
Typical Applications
- Machine tool position sensing and limit detection
- Motor start/stop and reversing controls
- Conveyor belt and material handling equipment
- Door and hatch position monitoring
- Pump and compressor shutdown circuits
- Industrial press and brake control systems
Compatibility & Replacements
Compatible With
- Allen-Bradley motor starters and contactors
- Siemens SIRIUS controls and safety relays
- Omron PLCs and logic controllers
- Schneider Electric motor protection circuits
- General-purpose industrial control panels rated 250VAC
- Any SPDT switching application requiring 10A AC nominal circuit current
Replaces / Drop-In Replacement For
- 1LN1-3-LH (lower current variant)
- 1LN1-1-LH (125VAC only variant)
- Other Honeywell MICRO SWITCH LN series with top plunger actuators
Works With
- Honeywell 18PA1 terminal block (base receptacle)
- Standard industrial wiring practices and NEC requirements
- Conduit and junction box installations with 1/2-inch NPT threads
- Electromechanical relay circuits and contactor coil controls
