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Confirm final materials and interfaces for your selected configuration.

SUBSEA ENGINEERING

Micro/Compact Subsea Proximity Switch - 5/8 UNF Thread

Robust stainless steel 316 housing engineered for subsea environments, delivering superior corrosion resistance and durability in high-pressure, saltwater applications. Built to withstand extreme depths and harsh conditions while maintaining structural integrity and reliable performance. Micro circular subsea rated connector provides reliable connectivity in demanding underwater environments. Features dry contact, volt-free contacts with SPDT changeover type configuration. Delivers two outputs—normally open and normally closed—enabling flexible switching logic. Rated to switch up to 1A, suitable for low-power control and signaling…

DEPTH RATING8,000 mApproximate seawater depth · 800 bar external pressure

Why choose this configuration?

Review against the required Micro interface, mating cable and mounting drawing.

Connector Type
Micro Circular
Contact Form
SPDT changeover
Connector mating
Wet-mateable

Choose the mounting and connection around the mechanism, then match the electrical and immersion duty.

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SPECIFICATION & SELECTION

Technical specifications.

Review the configuration, operating limits and interfaces together. Our engineering team can help resolve your requirements.

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DIMENSIONAL DRAWING / mmDimensional drawing of the compact 5/8 UNF subsea proximity switch: 47.34 mm (1.864 in) thread length and 82.17 mm (3.235 in) overall length.
5/8 UNF compact bodyDimensions in mm [inches]
Housing MaterialStainless Steel 316
Housing Thread5/8 UNF
Thread Length47.34 mm (1.864 in)
Overall Length82.17 mm (3.235 in)
Connector TypeMicro Circular
Connector GenderMale
Number of Pins3
Sensing RangeNon-contact proximity switching
Output TypeDry Contacts
Contact FormSPDT changeover
Max Switching Current @ 24 VDC1A
Depth Rating800 bar / 11,600 psi / 8,000 m sea water
Environmental RatingContinuous submersion
Operating Temp-40 to 60˚C / -40 to 140˚F

Specifications apply to the listed configuration. Include the part reference when requesting a different interface or operating duty.

TECHNICAL DOCUMENTATION

Specify with confidence.

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Drawings & datasheets

Request the approved datasheet and dimensional drawing for your configuration.

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Request CAD file ↗

Request a CAD file for Micro/Compact Subsea Proximity Switch - 5/8 UNF Thread. Our team will follow up by email.

Testing & verification

Agree inspection, electrical testing, pressure testing and supporting records as part of your quotation.

TESTED TO

Proven before it goes subsea.

Rated for continuous submersion. Every DepthLink proximity switch is tested at multiple stages of manufacture.

1.5×Depth-pressure proof test
Tested to 1.5× the certified depth pressure rating for the configuration.
100%Production testing
Every switch is tested at multiple manufacturing stages before release.
10⁸Mechanical cycles
Rated to 100 million mechanical operations.
3×10⁶Cycles at maximum load
Rated operations at the maximum specified switching load.

Additional depth testing, witnessed tests and supporting test records can be agreed to your project requirements. Discuss test requirements ↗

OPERATING PRINCIPLE · Micro/Compact Subsea Proximity Switch - 5/8 UNF Thread

How this switch detects position without contact

  1. Mount at the sensing point

    Fix the switch beside the mechanism and mount the specified target on the moving part. The target passes the sensing face at the position you need to detect.

  2. Target enters the sensing range

    The suitable target changes the configured contact state without physically pressing the switch. Confirm the target type, sensing gap and alignment against the exact product drawing.

  3. Connect the position signal

    Route the signal through this product’s specified cable and connector arrangement to the control input. Review the contact function, electrical load and pin allocation together.

  4. Check travel and repeatability

    Verify indication and reset throughout the installation tolerances. A proximity switch indicates a defined position; it does not measure the entire cylinder stroke.

For this product: Use the approved configuration for Micro/Compact Subsea Proximity Switch - 5/8 UNF Thread. Confirm mounting thread, target, sensing gap, body and connector materials, cable route and operating conditions.

INSTALLATION & SELECTION

Before you fit the switch.

Can this switch operate continuously underwater?

This is a subsea switch configuration. Specify continuous immersion as an operating duty, including external pressure, duration, water temperature and media. The supplied assembly specification defines its limits, including the actuation interface and cable termination.

What should I specify for use in seawater?

Specify the water conditions and the materials of the housing, connector, mounting hardware and target or striker. Material selection is specific to the installation; a corrosion-resistant housing does not establish the suitability of every connected component.

What target does the switch detect?

Select the target and operating gap for this configuration. A proximity switch indicates a defined position; it does not measure the complete travel of an actuator. Use the product drawing to establish the target, approach direction and mounting clearance.

PRODUCT + APPLICATION ENGINEERING

Underwater position feedback, configured for your equipment.

Selecting a subsea proximity switch or submersible position sensor starts with the duty: valve position, actuator travel, gate position or tool engagement. Review the sensing target, mounting, switching load and operating conditions alongside the cable assembly.

Looking for an underwater limit switch? Compare proximity sensing with end-of-travel switching requirements.

Read this product’s operating principle ↗

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