Cole Hersee M485BP Momentary Push-Button Switch – Off / Momentary On, SPST
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You have 30 days to request a return. All sale items are final sale.
The Cole Hersee M485BP is a momentary push-button switch rated for marine and automotive electrical systems. The switch is normally off (SPST) and closes the circuit only while the button is held down — a spring return mechanism automatically returns it to the off position when released. This momentary action makes it suitable for applications where a brief, controlled electrical pulse is needed rather than a latching on/off state.
The gasket-sealed case protects internal components against moisture and dust. Two brass terminals provide reliable connections, and the 5/8"-32 mounting stem (1" long) fits standard marine panel cutouts. Compatible with panels up to 3/4" thick.
- Momentary push-button switch — Off / Momentary On (SPST)
- Spring return to off — circuit closes only while button is depressed
- Gasket-sealed case — moisture and dust resistant
- 2 brass terminals
- Mounting stem: 5/8"-32, 1" long
- Fits panels up to 3/4" thick
- Packaged
Best Use Case: Ideal for engine start buttons, horn buttons, trim tab controls, bilge pump manual overrides, and other marine or electrical applications where a momentary contact is needed. The gasket-sealed case and brass terminals make it suitable for exposed helm and console locations where moisture resistance is required.
Parts Desk Insights: This is a momentary switch — it does not latch in the on position. If you need a switch that stays on when pressed and off when pressed again, a standard rocker or toggle switch is the correct choice. The 1" stem length fits panels up to 3/4" thick — confirm your panel thickness before ordering. For a similar momentary push-button switch with a brass body, see the Seachoice 11771 Brass Body Momentary Push-Button Switch. For fuse blocks and circuit protection, see the Seachoice 11276 Splash-Proof ATC Fuse Block – 4 Circuit and the Seachoice 11277 Splash-Proof ATC Fuse Block – 8 Circuit.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.