CHNANMA Launches DU‑2211Z‑B‑1 Waterproof Flush Metal Push Button Switch For Industrial Panels

Sep 21, 2026

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CHNANMA has launched the DU‑2211Z‑B‑1 waterproof flush metal push button switch, purpose‑built for machine panels and industrial control desks. The head and bezel are constructed from nickel‑plated brass, paired with silver‑plated rear contacts. This  metal push button switch is built for reliable industrial panel‑mount use.
What the New Model Addresses
Panel builders and machine integrators regularly run into two practical issues during panel assembly. Many push‑button switch options stick out above the panel surface, catching technicians' sleeves or hand tools as operators work around the equipment. Models built with indicator lights also add extra wiring steps before the panel can be closed up.
The DU‑2211Z‑B‑1 metal push button switch is engineered to avoid both of these pain points. It sits completely flush against the panel face, and as a non‑illuminated metal push button switch, it removes all the work associated with indicator‑light circuits.

Important Parameters
Operation mode: momentary (autoreset) or maintained (selflocking)
Contact function: 1NO + 1NC (a 1NO version is also available)
Panel cutout: 12 / 16 / 19 / 22 / 25 / 30 mm
Protection: IP65, IK10 impact resistance, V0 flameretardant base
Contact material: silverplated
Body and bezel: nickelplated brass
Certifications: CE, CB, CCC, CQ, RoHS
Rated current depends on the circuit you are switching, so send us your load details and we will confirm the right metal push button switch rating for your panel.

How It Is Built
Built to withstand demanding shop‑floor conditions, this metal push button switch features a V0 flame‑retardant plastic base for enhanced operational safety. A waterproof silicone ring combined with a panel‑mount O‑ring creates reliable sealing at the panel joint, safeguarding the metal push button switch against moisture and dust intrusion.

Where It Fits
The metal push button switch suits daily use on control desks. It is intended for industrial control panels, automation machinery, access control and intercom units, water pumps and roadside cabinets, test and measurement instrument panels, and cabinet door controls.

Availability
The metal push button switch comes in six panel cutout sizes, from 12 mm to 30 mm. OEM and ODM customization is available, and dimension drawings can be supplied for panel design.

About CHNANMA
CHNANMA is the brand of Jiangxi Nanma Electrical Co., Ltd., founded in 2001. We run a 6,000 m² production base in Ruijin, Jiangxi, with a sales office in Zhejiang, under ISO9001:2015, ISO14001 and ISO45001 management systems. Around 30% of our team are engineering specialists. As a metal push button switch manufacturer, we provide factory‑direct sourcing. Send us your application requirements and we will recommend a suitable metal push button switch.

Waterproof Flush Metal Push Button Switch

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