
SEACON underwater switch alternatives
Your existing reference. A DepthLink solution.
Explore proximity, momentary, rotary and push-pull configuration enquiries.
Find your switch reference ↓Illustrative configuration concepts. Final geometry and specification are agreed for each assembly.
Match the operating action to the mechanism.
The SEACON underwater switch range includes proximity, limit and positive-action types. Establish which action your equipment needs before selecting a DepthLink route. A mechanical actuator and a non-contact magnetic target require different installation arrangements.
Operating action
Specify non-contact detection or physical actuation. For a limit switch, include actuation direction, travel, overtravel and return behaviour.
Connector and pressure boundary
Identify the equipment-side mating half, locking arrangement and sealing details. A similar pin count does not establish compatibility with an existing Micro WET-CON or other subsea interface.
Electrical and materials scope
Supply the contact function, load and wetted materials. Define operating depth, pressure and temperature for the complete switch-and-cable assembly.
Compare the installed requirement with the proposed solution.
Use these six checks to identify what can stay and what needs changing. These are selection routes, not verified part-for-part equivalents.
| Selection point | Record from the installed equipment | DepthLink route and practical difference |
|---|---|---|
| Sensing action | Whether the installed unit uses a magnetic target or physical actuation. | Choose magnetic-target proximity sensing or a mechanical limit switch to suit the actual mechanism. |
| Mounting envelope | Thread and pitch, mounting drawing, sensing-face location and space for mating and removing the cable. | Select the body and connector together. A similar thread diameter does not establish identical fit or sensing position. |
| Electrical output | NO, NC or changeover contacts; voltage, switching load and required normal state. | Nano M12 offers SPDT dry contacts. Compare the actual control input and load before changing the circuit. |
| Connector and wiring | Exact mating-half reference, keying, contact arrangement, pin functions, sealing and cable termination. | Nano, Micro Straight, Micro 90° and Circular describe distinct interfaces. Review the actual mating pair and pinout; matching pin count alone is insufficient. |
| Wetted materials | Body, connector shell, mounting, target carrier, cable jacket and seal requirements. | Review the complete wetted assembly against seawater exposure and neighbouring materials. A connector material does not describe the whole switch body. |
| Pressure and immersion | Operating pressure/depth, temperature, continuous immersion and any required test evidence. | Nano M12 stainless-steel configuration: 700 bar external pressure, approximately 7,000 m seawater. Agree the complete switch, mating connector and cable duty. |
Magnetic target + discrete position
Explore Nano M12 for compact, magnet-operated open/closed or presence feedback.
Explore Nano M12 ↗Physical actuation + end position
Explore the mechanical limit-switch route where a moving mechanism can operate a plunger.
Explore mechanical feedback ↗Still choosing the sensing action?
Compare physical actuation and non-contact magnetic-target sensing before selecting the mounting and cable.
Read the selection guide ↗SEACON to DepthLink switch cross-reference
Search proximity, dual-switch, momentary, rotary and push-pull requirements across 12 catalogue ranges. Each DepthLink enquiry reference identifies a configuration to discuss with our engineering team.
Alternatives are configured against your original specification. Final dimensions, electrical performance, connector compatibility and depth rating are confirmed with the quotation.
116 configuration references
| SEACON reference | DepthLink enquiry reference | Range and function | Source interface | Next step |
|---|---|---|---|---|
| A033-101-1 | DL-PS-2001 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A033-101-2 | DL-PS-2002 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A033-101-3 | DL-PS-2003 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A033-101-4 | DL-PS-2004 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A030-101 | DL-PS-2005 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A030-102 | DL-PS-2006 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A030-103 | DL-PS-2007 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A034-101 | DL-PS-2008 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A034-102 | DL-PS-2009 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A034-103 | DL-PS-2010 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A034-104 | DL-PS-2011 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A031-101 | DL-PS-2012 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A031-102 | DL-PS-2013 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A031-103 | DL-PS-2014 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A031-104 | DL-PS-2015 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A031-105 | DL-PS-2016 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A031-107 | DL-PS-2017 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A031-106 | DL-PS-2018 | Moulded cable proximity (AU series) Reed proximity | Integral cable | Request alternative ↗ |
| A039-101-1 | DL-PS-2019 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A039-101-2 | DL-PS-2020 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A039-101-3 | DL-PS-2021 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A039-101-4 | DL-PS-2022 | Moulded cable proximity (AU series) Micro switch proximity | Integral cable | Request alternative ↗ |
| A032-101 | DL-PS-2023 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A032-102 | DL-PS-2024 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A032-103 | DL-PS-2025 | Moulded cable proximity (AU series) Hall effect proximity | Integral cable | Request alternative ↗ |
| A044-101 | DL-PS-2026 | Moulded cable proximity (AU series) Micro switch proximity; stainless steel | Integral cable / flanged assembly | Request alternative ↗ |
| A048-101 | DL-PS-2027 | Moulded cable proximity (AU series) Micro switch proximity; Monel | Integral cable / flanged assembly | Request alternative ↗ |
| A112-101-1 | DL-PS-2028 | Modular right-angle proximity / MCBH-3M Micro switch proximity | Micro right angle / MCBH-3M | Request alternative ↗ |
| A112-101-2 | DL-PS-2029 | Modular right-angle proximity / MCBH-3M Micro switch proximity | Micro right angle / MCBH-3M | Request alternative ↗ |
| A112-101-3 | DL-PS-2030 | Modular right-angle proximity / MCBH-3M Micro switch proximity | Micro right angle / MCBH-3M | Request alternative ↗ |
| A112-101-4 | DL-PS-2031 | Modular right-angle proximity / MCBH-3M Micro switch proximity | Micro right angle / MCBH-3M | Request alternative ↗ |
| A035-102 | DL-PS-2032 | Modular right-angle proximity / MCBH-3M Hall effect proximity | Micro right angle / MCBH-3M | Request alternative ↗ |
| A035-107 | DL-PS-2033 | Modular right-angle proximity / MCBH-3M Hall effect proximity | Micro right angle / MCBH-3M | Request alternative ↗ |
| A047-101-1 | DL-PS-2034 | Modular right-angle proximity / MCBH-3M Micro switch proximity | Micro right angle / MCBH-3M | Request alternative ↗ |
| A047-101-2 | DL-PS-2035 | Modular right-angle proximity / MCBH-3M Micro switch proximity | Micro right angle / MCBH-3M | Request alternative ↗ |
| A169-103-1 | DL-PS-2036 | Bulkhead proximity sensor Reed proximity; acetal | Bulkhead / lead wires | Request alternative ↗ |
| A169-103-2 | DL-PS-2037 | Bulkhead proximity sensor Reed proximity; stainless steel | Bulkhead / lead wires | Request alternative ↗ |
| A193-101-1 | DL-PS-2038 | Modular straight proximity / MCBH-3M Micro switch proximity; stainless steel | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-101-2 | DL-PS-2039 | Modular straight proximity / MCBH-3M Micro switch proximity; stainless steel | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-101-3 | DL-PS-2040 | Modular straight proximity / MCBH-3M Micro switch proximity; stainless steel | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-101-4 | DL-PS-2041 | Modular straight proximity / MCBH-3M Micro switch proximity; stainless steel | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-102-1 | DL-PS-2042 | Modular straight proximity / MCBH-3M Micro switch proximity; titanium | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-1 | DL-PS-2043 | Modular straight proximity / MCBH-3M Hall effect proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-2 | DL-PS-2044 | Modular straight proximity / MCBH-3M Hall effect proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-3 | DL-PS-2045 | Modular straight proximity / MCBH-3M Hall effect proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-4 | DL-PS-2046 | Modular straight proximity / MCBH-3M Hall effect proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-5 | DL-PS-2047 | Modular straight proximity / MCBH-3M Hall effect proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-6 | DL-PS-2048 | Modular straight proximity / MCBH-3M Hall effect proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-7 | DL-PS-2049 | Modular straight proximity / MCBH-3M Hall effect proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-8 | DL-PS-2050 | Modular straight proximity / MCBH-3M Hall effect proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-104-1 | DL-PS-2051 | Modular straight proximity / MCBH-3M Reed proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-104-2 | DL-PS-2052 | Modular straight proximity / MCBH-3M Reed proximity | Micro straight / MCBH-3M | Request alternative ↗ |
| A193-103-1 | DL-PS-2053 | Modular straight proximity / GRE Hall effect proximity | GRE connector | Request alternative ↗ |
| A193-103-2 | DL-PS-2054 | Modular straight proximity / GRE Hall effect proximity | GRE connector | Request alternative ↗ |
| A193-103-3 | DL-PS-2055 | Modular straight proximity / GRE Hall effect proximity | GRE connector | Request alternative ↗ |
| A193-103-4 | DL-PS-2056 | Modular straight proximity / GRE Hall effect proximity | GRE connector | Request alternative ↗ |
| A193-103-5 | DL-PS-2057 | Modular straight proximity / GRE Hall effect proximity | GRE connector | Request alternative ↗ |
| A193-103-6 | DL-PS-2058 | Modular straight proximity / GRE Hall effect proximity | GRE connector | Request alternative ↗ |
| A193-103-7 | DL-PS-2059 | Modular straight proximity / GRE Hall effect proximity | GRE connector | Request alternative ↗ |
| A193-103-8 | DL-PS-2060 | Modular straight proximity / GRE Hall effect proximity | GRE connector | Request alternative ↗ |
| A193-104-1 | DL-PS-2061 | Modular straight proximity / GRE Reed proximity | GRE connector | Request alternative ↗ |
| A193-104-2 | DL-PS-2062 | Modular straight proximity / GRE Reed proximity | GRE connector | Request alternative ↗ |
| A166-101-1 | DL-PS-2063 | Modular straight proximity / MINK-4-FCRL Reed proximity | MINK-4-FCRL | Request alternative ↗ |
| A040-101-X | DL-PS-2064 | Dual proximity / MCBH-4M-DO and MCBH-4F-DO Dual micro switch proximity | MCBH-4M-DO / MCBH-4F-DO | Request alternative ↗ |
| A040-102-X | DL-PS-2065 | Dual proximity / MCBH-3M-DO Dual micro switch proximity | MCBH-3M-DO | Request alternative ↗ |
| A112-102-1 | DL-LS-2001 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-2 | DL-LS-2002 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-3 | DL-LS-2003 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-4 | DL-LS-2004 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-5 | DL-LS-2005 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-6 | DL-LS-2006 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-7 | DL-LS-2007 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-8 | DL-LS-2008 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-9 | DL-LS-2009 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A112-102-10 | DL-LS-2010 | Momentary switch Momentary mechanical switch | Right-angle assembly | Request alternative ↗ |
| A009-101 | DL-LS-2011 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A009-102 | DL-LS-2012 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A009-103 | DL-LS-2013 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A009-104 | DL-LS-2014 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A083-101 | DL-LS-2015 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A083-102 | DL-LS-2016 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A083-103 | DL-LS-2017 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A083-104 | DL-LS-2018 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A037-101 | DL-LS-2019 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A037-102 | DL-LS-2020 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A037-106-1 | DL-LS-2021 | Momentary switch Momentary mechanical switch; large button | Integral cable | Request alternative ↗ |
| A037-106-2 | DL-LS-2022 | Momentary switch Momentary mechanical switch; large button | Integral cable | Request alternative ↗ |
| A108-101-1 | DL-LS-2023 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A108-101-2 | DL-LS-2024 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A108-101-3 | DL-LS-2025 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A108-101-4 | DL-LS-2026 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A119-101 | DL-LS-2027 | Momentary switch Momentary mechanical switch; titanium | Integral cable / bulkhead | Request alternative ↗ |
| A018-101 | DL-LS-2028 | Momentary switch Momentary mechanical switch | Integral cable | Request alternative ↗ |
| A280-101-1 | DL-RS-2001 | Panel-mount rotary / MCBH-3M Rotary switch | Panel mount / MCBH-3M | Request alternative ↗ |
| A280-101-2 | DL-RS-2002 | Panel-mount rotary / MCBH-3M Rotary switch | Panel mount / MCBH-3M | Request alternative ↗ |
| A285-101-1 | DL-LS-2029 | Titanium momentary / GRE Momentary mechanical switch; titanium | GRE connector | Request alternative ↗ |
| A285-101-2 | DL-LS-2030 | Titanium momentary / GRE Momentary mechanical switch; titanium | GRE connector | Request alternative ↗ |
| A049-102-1 | DL-PP-2001 | Positive-action switch Positive-action push-pull switch | Integral cable | Request alternative ↗ |
| A049-102-2 | DL-PP-2002 | Positive-action switch Positive-action push-pull switch | Integral cable | Request alternative ↗ |
| A049-102-3 | DL-PP-2003 | Positive-action switch Positive-action push-pull switch | Integral cable | Request alternative ↗ |
| A049-102-4 | DL-PP-2004 | Positive-action switch Positive-action push-pull switch | Integral cable | Request alternative ↗ |
| A049-102-5 | DL-PP-2005 | Positive-action switch Positive-action push-pull switch | Integral cable | Request alternative ↗ |
| A049-102-6 | DL-PP-2006 | Positive-action switch Positive-action push-pull switch | Integral cable | Request alternative ↗ |
| A049-102-7 | DL-PP-2007 | Positive-action switch Positive-action push-pull switch | Integral cable | Request alternative ↗ |
| A049-102-8 | DL-PP-2008 | Positive-action switch Positive-action push-pull switch | Integral cable | Request alternative ↗ |
| A050-101-1 | DL-RS-2003 | Positive-action switch Positive-action rotary switch | Integral cable | Request alternative ↗ |
| A050-101-2 | DL-RS-2004 | Positive-action switch Positive-action rotary switch | Integral cable | Request alternative ↗ |
| A050-101-3 | DL-RS-2005 | Positive-action switch Positive-action rotary switch | Integral cable | Request alternative ↗ |
| A050-101-4 | DL-RS-2006 | Positive-action switch Positive-action rotary switch | Integral cable | Request alternative ↗ |
| A025-101-1 | DL-LS-2031 | Positive-action switch Positive-action momentary; acetal | Integral cable | Request alternative ↗ |
| A025-101-2 | DL-LS-2032 | Positive-action switch Positive-action momentary; acetal | Integral cable | Request alternative ↗ |
| A026-101-1 | DL-LS-2033 | Positive-action switch Positive-action momentary; 316 stainless steel | Integral cable | Request alternative ↗ |
| A026-101-2 | DL-LS-2034 | Positive-action switch Positive-action momentary; 316 stainless steel | Integral cable | Request alternative ↗ |
| A026-101-3 | DL-LS-2035 | Positive-action switch Positive-action momentary; 316 stainless steel | Integral cable | Request alternative ↗ |
| A026-101-4 | DL-LS-2036 | Positive-action switch Positive-action momentary; 316 stainless steel | Integral cable | Request alternative ↗ |
| A023-101 | DL-LS-2037 | Positive-action switch Positive-action momentary | Mould option not shown | Request alternative ↗ |
References transcribed from TE Connectivity’s SEACON Underwater Switch Selection Guide, 2363096-1 (01/20), pages 3–7. Explicitly listed suffixes are expanded; X denotes an unspecified configuration. Some A193 references appear under both Micro and GRE interfaces. These are enquiry references, not statements of stock availability or verified interchangeability.
Found your reference—or need help identifying it?
Send the existing part number, drawing, operating depth and quantity. We will review the configuration with you.
Discuss your switch requirement ↗Model numbers & configuration references
Looking for an alternative to one of these references? Send the full part number and drawing to DepthLink with your enquiry. We will assess the sensing action, mounting, electrical output and subsea connection together.
Legacy catalogue references are included for installed-equipment enquiries. They do not establish current manufacturer availability.
| Reference | Reference type | What to identify | Next step |
|---|---|---|---|
| AU-VM | Legacy family | Proximity family. Confirm the original assembly drawing. | Assess this reference ↗ |
| AU-VME | Legacy family | Proximity family. Confirm the original assembly drawing. | Assess this reference ↗ |
| BU-VM | Legacy family | Modular proximity family. Confirm the original assembly drawing. | Assess this reference ↗ |
| AU | Legacy family | Limit-switch family; full switch designation required. Confirm the original assembly drawing. | Assess this reference ↗ |
| WT-90 | Legacy family | Limit-switch family. Confirm the original assembly drawing. | Assess this reference ↗ |
| AU-LSW | Legacy family | Limit-switch family. Confirm the original assembly drawing. | Assess this reference ↗ |
| AU-LS 10K | Legacy family | Limit-switch family. Confirm the original assembly drawing. | Assess this reference ↗ |
| AU-PLS-LD-C | Documented code expansion | Light-duty plastic limit switch; expanded from the published AU-PLS-(LD or SD)-C pattern. | Assess this reference ↗ |
| AU-PLS-SD-C | Documented code expansion | Standard-duty plastic limit switch; expanded from the published AU-PLS-(LD or SD)-C pattern. | Assess this reference ↗ |
| MC-BH-3M | Legacy connector reference | Interface listed for modular proximity switches; not a switch part number. | Assess this reference ↗ |
Model families, connector suffixes and accessories are identified separately from complete switch part numbers. Custom configurations are not exhaustively listed. Inclusion does not imply a drop-in replacement or transfer any competitor rating to a DepthLink product.
A DepthLink solution around your equipment.
Nano M12 proximity switch
Compact magnet-operated switching with an optional MT-01 target.
View product ↗Subsea cable assemblies
Define connector format, pin allocation, cable length and equipment termination.
Explore cabling ↗Configured materials & interfaces
Review stainless steel, titanium and other specified alloys for the actual assembly.
Material options ↗Relevant underwater applications
Before choosing an alternative
Does a DepthLink switch mate with my SEACON cable?
Mating compatibility is specific to the exact connector pair. Send both references and the pin allocation; do not assume compatibility from the appearance or pin count.
Can I specify a mechanical limit switch instead of proximity sensing?
Yes, DepthLink offers a mechanical limit-switch product route. The mechanism must provide suitable physical actuation, and the travel, circuit and environmental requirements need to be agreed.
DepthLink is an independent supplier. SEACON names identify the existing equipment or requirement; no affiliation, endorsement or automatic interchangeability is implied.
Send us the reference. Tell us what must stay.
Include the part number, drawing or datasheet, required quantity and delivery date. Tell us which mounting, target, connector and control-system interfaces need to remain unchanged.
