{"product_id":"allen-bradley-849-zod324-pneumatic-timing-relay","title":"Allen-Bradley 849-ZOD324 Pneumatic Timing Relay","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 849-ZOD324 Pneumatic Timing Relay is a Bulletin 849 timing relay that provides an adjustable on-delay in industrial control circuits. It is a pneumatic timing device that uses a synthetic rubber bellows and a screw-type needle valve to meter the air flow, delivering a maintained-contact output after the preset interval. The coil operates at 110\/120 VAC, 50\/60 Hz, aligning with common North American control panels, and the timing action is pneumatic rather than electronic. This model belongs to the 849 family, with historical open-type and enclosure variants such as 849-ZOD32 (open type) and 849-ZAD32 (Type 1 enclosure), and the 849-ZOD324 sits within that lineage. The timing is set pneumatically and resets when supply is removed, offering a simple, rugged means to introduce delays without relying on electronic timers. The output closure provides a maintained contact suitable for energizing other loads or relays, enabling sequencing, interlocks, start\/stop delays, or other control logic in machines and processes where a defined interval between input and control action is required.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657428435246,"sku":null,"price":181.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_d1fe2649-ed03-4718-bc40-4d9d7ac1ed6e.jpg?v=1769468860","url":"https:\/\/plgautomation.com\/products\/allen-bradley-849-zod324-pneumatic-timing-relay","provider":"PLG Automation ","version":"1.0","type":"link"}