{"product_id":"damper-actuator-spring-lfz-t0524-kf","title":"Damper Actuator Spring LFZ-T0524-KF","description":"\u003ch3\u003eTechnical Summary\u003c\/h3\u003e\u003cp\u003eThe LFZ-T0524-KF is a spring-return rotary damper actuator designed for fail-safe airflow control in commercial HVAC applications. This actuator provides reliable ON-OFF damper positioning with automatic spring return to the fail-safe position upon power loss or control signal interruption. With 44 in-lb output torque and dual auxiliary switches, it ensures dependable operation in smoke control, economizer lockout, and safety damper applications where fail-safe positioning is critical.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eControl Type\u003c\/th\u003e\n\u003cth\u003eOutput Torque\u003c\/th\u003e\n\u003cth\u003eOperating Voltage\u003c\/th\u003e\n\u003cth\u003eRunning Time\u003c\/th\u003e\n\u003cth\u003eSpring Return Time\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLEFOO\u003c\/td\u003e\n\u003ctd\u003eLFZ-T0524-KF\u003c\/td\u003e\n\u003ctd\u003eON-OFF Switch\u003c\/td\u003e\n\u003ctd\u003e44 in-lb\u003c\/td\u003e\n\u003ctd\u003e24V AC\/DC\u003c\/td\u003e\n\u003ctd\u003e70 seconds\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;20 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eEngineered for fail-safe damper control in air handling units (AHUs), rooftop units (RTUs), smoke evacuation systems, and outdoor air economizers. The spring-return mechanism ensures automatic damper closure (or opening, depending on installation) during power failures, fire alarm activation, or emergency shutdown sequences. Dual auxiliary switches provide positive end-position feedback to building management systems (BMS) and enable interlock logic for safety sequences and alarm monitoring.\u003c\/p\u003e\u003ch3\u003eReliability \u0026amp; Performance\u003c\/h3\u003e\u003cp\u003eIndustrial-grade construction with robust spring mechanism ensures consistent fail-safe operation across thousands of cycles. The 70-second stroke time provides controlled damper movement, while the rapid \u0026lt;20-second spring return delivers immediate response during emergency conditions. Two sets of auxiliary switches support advanced sequencing, status monitoring, and fault detection in life-safety and critical HVAC applications. Simple ON-OFF control integration reduces wiring complexity and enhances compatibility with legacy control systems.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eCross-reference: Comparable to Belimo LF24 E US\u003c\/em\u003e\u003c\/p\u003e","brand":"EPS Controls","offers":[{"title":"Default Title","offer_id":50818640773408,"sku":null,"price":230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/1938\/7168\/files\/damper-actuator-spring-lfz-t0524-kf-8908188.png?v=1773356228","url":"https:\/\/www.epscontrols.com\/products\/damper-actuator-spring-lfz-t0524-kf","provider":"EPS Controls","version":"1.0","type":"link"}