Overview
The Honeywell BAF1-2RN2-RH limit switch is a medium-duty SPDT snap-action switch designed for industrial automation, machinery control, and position detection applications. This is a single-pole double-throw (SPDT) 1NO-1NC switch with top plunger actuator, housed in aluminum die cast with sealed design for contamination protection.
Key Features
- Contact Configuration: SPDT 1NO-1NC (single-pole double-throw) for flexible control logic
- Snap-Action Operation: Operating force of 11.2 N ensures positive, reliable switching
- Sealed Design: Elastomer boot protects the actuating mechanism and internal switch from contaminants; seal gasket between cover plate and housing
- Top Plunger Actuator: Straightforward mounting and operator interface for machinery integration
- Standard Mounting: 101 mm × 41 mm mounting centers compatible with common industrial enclosure layouts
- UL/CSA Certified: NEMA 1, 3, 4, 13 sealing with UL/CSA approvals
Technical Specifications
- Contact Rating: 20 ampere snap action
- Voltage Rating (AC): 480 VAC maximum
- Voltage Rating (DC): 250 VDC maximum
- Current Rating: 0.5 A @ 125 VDC
- Operating Temperature: −32 °C to +71 °C
- Dimensions: 101.6 mm long, 80.5 mm tall, 33 mm deep
- Housing Material: Aluminum die cast
- Termination: Conduit termination style
- Mounting Centers: 101 mm × 41 mm
- Series: BAF1 (Specialty Limit Switch)
Typical Applications
The BAF1-2RN2-RH is commonly deployed in:
- Conveyor system limit and end-of-travel detection
- Machinery guard interlocks and safety circuits
- Packaging equipment position sensing
- Overhead crane and hoist position indicators
- Industrial automation on/off switching with dual-channel logic
- Motion control circuits requiring snap-action response
Compatibility & Replacements
Compatible With
- Standard industrial control circuits rated 480 VAC / 250 VDC
- NEMA 1, 3, 4, and 13 enclosures
- Allen-Bradley, Siemens, Omron, and other PLC-based automation systems
- Conduit-based wiring installations (3-hole mounting pattern)
Replaces / Drop-In Replacement For
This unit is part of the Honeywell BAF Series. Verify compatibility with your system integrator before ordering replacement units to confirm exact specification match (contact form, voltage rating, actuator type).
Works With
- Industrial control circuits and PLC inputs
- Solenoid and relay switching applications
- Safety-rated interlocking systems
- 24 VDC and 120 VAC logic circuits
- Standard DIN rail or panel-mount enclosures
