133569/U Auxiliary Switch for Pre‑Ignition Interlock Control

Product Overview

The 133569/U is a valve-closed indication switch assembly used as a proof of closure device in combustion safety and burner control systems.
It is designed to verify valve closed position before ignition, supporting pre-ignition interlock requirements and improving operational safety.

This switch assembly is commonly used with Honeywell V4055 and V4062 series valve applications where proof of closure or valve-closed feedback is required.

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Key Features

• Proof of closure and valve-closed indication function
• Supports pre-ignition interlock safety logic
• Designed for use with Honeywell V4055 and V4062 series
• OEM accessory or replacement part for combustion control assemblies
• Helps reduce unsafe ignition conditions by verifying closed position

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Packaging & Delivery

• Protective industrial carton packaging
• Standard export packing for international shipment
• Shipping by courier, air freight, or sea freight available
• Bulk supply available for distributors and project orders
• Lead time depends on stock and factory availability

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Frequently Asked Questions (FAQ)

Q: What is 133569/U used for
A: It is used as a proof of closure switch to confirm the valve is closed before ignition in burner safety systems.

Q: Which valve series is it used with
A: It is used with Honeywell V4055 and V4062 series applications.

Q: Can it be used with V5034 valve body
A: No, it is specified as not for use with V5034 valve body.

Q: Is this part suitable for pre-ignition interlock control
A: Yes, it is commonly used as a replacement pre-ignition interlock or proof of closure switch.

Q: Do you support international shipping
A: Yes, worldwide shipping is available.