{"product_id":"schneider-electric-zb4bs944-push-button-switch-22mm","title":"Schneider Electric ZB4BS944 Push-button Switch 22mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCHNEIDER ELECTRIC ZB4BS944 is a heavy-duty industrial push-button switch designed for control panel and machine operator interface applications. It features a 22 mm mounting hole diameter, a round red extended mushroom-head actuator, and supports both maintained and momentary operation modes in a single unit. The actuator body is constructed from metal, providing durability in demanding industrial environments. Rated for NEMA 4, 4X, 12, and 13 enclosures, this switch is built to resist dust, oil, and water ingress. It is installed by licensed electricians and industrial control technicians working on machine control circuits, operator stations, and safety-related switching systems.\u003c\/p\u003e\n\u003cp\u003eThis push-button switch is suited for use in industrial and commercial machine control applications where a 22 mm panel cutout is standard. The red mushroom-head profile makes it well-suited for emergency-stop or attention-critical operator functions. Its dual-mode operation — maintained and momentary — gives panel designers flexibility for a range of control logic requirements. The compact form factor and metal construction make it appropriate for both indoor and outdoor-rated enclosures where NEMA 4X corrosion resistance is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e22 mm mounting hole diameter fits standard industrial panel cutouts\u003c\/li\u003e\n  \u003cli\u003eRound red extended mushroom-head actuator for high-visibility operator identification\u003c\/li\u003e\n  \u003cli\u003eSupports both maintained and momentary operation modes\u003c\/li\u003e\n  \u003cli\u003eMetal push-button construction for durability in industrial environments\u003c\/li\u003e\n  \u003cli\u003eNEMA 4, 4X, 12, and 13 ratings for dust, oil, and water resistance\u003c\/li\u003e\n  \u003cli\u003eMeets multiple international standards including UL 508, CSA C22.2 No. 14, EN\/IEC 60947-5-1, and EN\/ISO 13850\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation push-button switch for industrial control panels requiring a standard 22 mm mounting hole diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified electrician in accordance with NEC requirements and applicable local codes. De-energize and lock out the control panel before mounting or wiring this switch. Verify enclosure NEMA rating compatibility before installation to maintain the ingress protection rating of the panel assembly. Do not exceed the contact ratings specified in the manufacturer technical datasheet.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Hole Diameter\u003c\/strong\u003e: 22 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperation Type\u003c\/strong\u003e: Maintained and Momentary\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePush Button Type\u003c\/strong\u003e: Extended Mushroom Head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePush Button Color\u003c\/strong\u003e: Red\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePush Button Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePush Button Material\u003c\/strong\u003e: Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNEMA Rating\u003c\/strong\u003e: 4, 4X, 12, 13\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3.1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: UL 508, UL Listed, CSA, CSA C22.2 No. 14, EN\/IEC 60947-1, EN\/IEC 60947-5-1, EN\/IEC 60947-5-4, EN\/IEC 60947-5-5, EN\/IEC 60204-1, EN\/ISO 13850, IEC 60364-5-53, GB 14048.5, JIS C 4520, Bureau Veritas, DNV, GL, LROS, RINA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SCHNEIDER ELECTRIC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZB4BS944\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHNEIDER ELECTRIC","offers":[{"title":"Default Title","offer_id":51542803546418,"sku":"ZB4BS944","price":199.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d9a61fdc92bd6cbc80efbc9201287409.jpg?v=1785907884","url":"https:\/\/voomisupply.com\/products\/schneider-electric-zb4bs944-push-button-switch-22mm","provider":"Voomi Supply","version":"1.0","type":"link"}