Bouton poussoir inverseur momentané (ON)-ON, 12V 5A, 22mm, étanche IP67, DPST 2NO2NC — code couleur des fils COM/NO/NC + LED

Bouton poussoir de 22 mm en acier inoxydable étanche IP67 pour la fonction de marche forcée

Wiring diagram for dual-circuit changeover push button: LED+/LED-, COM1/COM2, NC and NO outputs — released = NC, press & hold = NO (2NO 2NC)

NC/NO behavior example: lamp powered in white through NC when released, switches momentarily to NO (red) only while holding the button

Bouton poussoir 12V (ON)-ON pré-câblé : perçage Ø22mm (7/8), collerette Ø25mm, panneau max 12mm, cosses 2,8mm, câble 200mm, LED ambre

Bouton poussoir inverseur multi-usages : marche forcée/override, neutralisation temporaire, bypass/reset — relâché NC, appui maintenu NO (22mm, 2NO2NC)

Schéma marche forcée d’une pompe de cale automatique 12V : bouton poussoir inverseur double circuit — pont via COM, automatique via NC, override momentané via NO

Bouton poussoir inox 22mm inverseur momentané, anneau LED ambre, contacts DPST 2NO2NC, ON-(ON) pour montage tableau

22mm stainless steel momentary changeover push button, amber LED ring, DPST 2NO2NC contacts, ON-(ON) panel mount switch

Changeover ON-(ON) Push Button | 2NO2NC - IP67

SKU: PO22A

13.00€; 13.00€
Unit price: per

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Description
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22mm Momentary Changeover Push Button (Released NC → Press & Hold NO) | DPST 2NO2NC | IP67 | Amber LED

12V LED • 5A contacts • pre-wired harness (200mm) • stainless steel panel mount

Search terms (compatibility): momentary changeover push button • ON-(ON) / (ON)-ON • DPST 2NO2NC • manual override switch • bilge pump override button • waterproof 22mm pushbutton

What this switch does

This 22mm momentary changeover push button behaves like a mechanical changeover relay—but without a relay coil. At rest, the NC circuits are closed (Function 1 ON). When you press & hold, the switch transfers to the NO circuits (Function 2 ON) and returns to NC as soon as you release.

Released (default): NC1 + NC2 connected → your “automatic / normal” circuit stays active
Press & hold (momentary): NO1 + NO2 connected → your “manual override / secondary” circuit becomes active

Many sellers label this behavior as ON-(ON) or (ON)-ON. What matters in practice is simple: Released = NC active, Press & hold = NO active.

Why choose this push button instead of using a relay?

Mechanical changeover logic (no coil)
Same “transfer” idea as a changeover relay, but without coil wiring, standby current or buzzing.

Fewer parts, fewer failure points
No relay socket, no coil, no extra connections—often more reliable in vibration + humidity.

Instant, manual control
Press = transfer, release = back to default. Ideal for manual override or temporary bypass.

Still relay-friendly when needed
Use it directly for small loads (≤5A) or to control a relay/contactor coil for higher currents.

Rule of thumb: if your load is within the switch rating (5A) you can switch it directly. For pumps/winches/high-current circuits, use this button to switch a relay/contactor control line.

Amber LED indicator (12V)

The amber LED ring can be wired to show either:

Circuit armed / powered: LED on when the system is enabled (useful for bilge pump supply confirmation)
Manual override active: LED on only while you press & hold (clear “override engaged” feedback)

How to use it: practical wiring logic

1) Manual override for an automatic bilge pump (2-wire pump)

With a dual-circuit changeover, you can keep the pump in automatic mode by default (NC), and add a momentary manual override (NO) without adding complex control modules.

Automatic (NC path): keep your “auto” feed active through NC1
Manual override (NO path): feed the pump through NO1 only while pressing
COM2 bridge idea: use COM2 to create a bridge so the +12V is available to the manual override path when needed

Routing the supply through the push button/panel (instead of a direct battery feed) gives you a helm control point: the LED confirms the circuit is powered/armed, and you keep a clean disconnect + protection point (fuse/breaker) on the same panel.

2) Temporary disable / service safety

Put your normal circuit on NC. When you press & hold, NC opens → the function is temporarily disabled. This is useful for servicing (testing, cleaning a strainer, preventing a device from running unexpectedly).

3) Bypass / reset (momentary action)

Use the NO side to provide a clean momentary signal to a device that needs a bypass or a manual reset: electronics reset input, alarm acknowledge, control input on a module, etc.

Key features

DPST 2NO/2NC: two independent changeover circuits for advanced control logic
Stainless steel body: corrosion resistance for marine/vehicle environments
IP67 waterproof: sealed against dust and water ingress
22mm mounting: standard panel cutout size
Pre-wired harness: 200mm leads with connector for faster installation

Technical specifications

Specification	Details
Mounting hole	22mm
Function	Momentary changeover (Released = NC / Press & hold = NO)
Contact configuration	DPST 2NO / 2NC
LED ring	Amber (12V DC)
Max current	5A
Housing	Stainless steel
Waterproof rating	IP67
Harness	Pre-wired 200mm + connector
Electrical life	50,000+ cycles

Specification

Technical Specifications

Specification	Details
Mounting hole	Ø22 mm (7/8")
Bezel diameter	Ø25 mm
Max panel thickness	12 mm
Switch function	Momentary changeover: Released = NC / Press & Hold = NO (ON-(ON))
Contact configuration	DPST – 2NO + 2NC
Contact rating	5A max (DC)
LED ring	Amber backlight, 12V DC – independent circuit (ON when powered)
Ingress protection	IP67
Housing	Stainless steel bezel + polymer body
Wiring	Pre-wired harness 200 mm with connector (color-coded leads)

How to use

How to use :

Discover tips, tricks, and detailed instructions on using our product in our dedicated blog post. Learn about setup, operation, and optimization to get the most out of your purchase.

Link to the blog

FAQ

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