Information sheet MDC MDC, magnetic door contact with time delay Starts the air curtain or increases the air speed from low to high speed when the door is opened. When the door is closed, the fan continues to run for the preset time (2s–10 min). This prevents the fan from starting/stopping continuously and is especially suitable for doors that are frequently opened. MDC has three alternating volt-free contacts. MDC replaces MDC1, MDC3 and MDCT3. MDC includes door contact MDCDC. Type MDC Max input Voltage [A] [V] 10 230 • Signals when door opens/closes • Built-in timer • Appealing and modern design Protection class HxWxD [mm] IP44 Design and specifications are subject to change without notice.
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