Honeywell 112TW39-3DX18 Toggle Switch Technical Overview
The Honeywell 112TW39-3DX18 toggle switch is a sealed operator control component designed for advanced panel and equipment applications that require dependable manual switching. This model is listed as a DPDT panel mount toggle switch with an On-On switch function, making it suitable for applications where the operator needs to alternate between two maintained active states rather than using a neutral center-off position.
Technical Characteristics of the 112TW39-3DX18 Toggle Switch
The 112TW39-3DX18 toggle switch uses a double-pole double-throw circuit and is commonly associated with a 5 A current rating, a 115 V AC voltage rating, and 28 V DC support in distributor listings. It is configured for panel mounting and includes IWTS termination. The panel format follows the sealed TW family style, including a 12.40 mm circular panel cutout and a 15/32-32 bushing thread.
This Honeywell operator controls toggle switch also belongs to the environment-sealed class, which is valuable in installations where moisture, dust, and mechanical handling can reduce the service life of standard open-frame switching components. Because of that, the part is relevant in technical applications where control hardware needs to remain stable over time rather than simply meeting a basic switching requirement.
Why an On-On DPDT Toggle Switch Is Useful
The Honeywell 112TW39-3DX18 DPDT toggle switch is especially useful when a system needs two clearly maintained operating states. Instead of returning to off or relying on momentary action, the switch stays in the selected position until the operator changes it. That makes it suitable for mode selection, directional selection, signal routing, and equipment interfaces that depend on persistent state control.
Typical Applications for the Honeywell 112TW39-3DX18
The Honeywell 112TW39-3DX18 toggle switch can fit industrial systems, instrumentation consoles, aerospace-related support equipment, test platforms, and specialized machine interfaces. Search visibility is often strongest around terms such as DPDT On-On toggle switch, sealed panel mount toggle switch, and Honeywell 112TW39-3DX18 switch. For more information about Honeywell, reviewing the wider operator control range can help compare function-specific variants.
FAQ: Honeywell 112TW39-3DX18 Toggle Switch
What type of switch is the Honeywell 112TW39-3DX18?
The Honeywell 112TW39-3DX18 is a DPDT panel mount toggle switch with an On-On maintained function. It is intended for professional control applications that need two selectable active states.
What does On-On mean on the Honeywell 112TW39-3DX18?
On-On means the switch can move between two maintained active positions. It does not use a center-off position in the standard function description, which makes it useful for selecting between two live operating modes.
Why is a sealed toggle switch important?
A sealed toggle switch helps protect the switching mechanism from dust, splashing, and environmental contamination. In industrial or field equipment, that can improve long-term reliability and reduce maintenance concerns.
Can the Honeywell 112TW39-3DX18 be used in equipment panels?
Yes. The switch is built for panel mounting and follows the dimensional logic common to TW Series sealed operator controls, making it suitable for professional equipment interfaces.
What should be reviewed before choosing the Honeywell 112TW39-3DX18?
Engineers should verify the required circuit type, maintained switching behavior, current and voltage range, termination style, and mechanical mounting compatibility before integrating the switch into a new or replacement design.