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	The Smoke Guard System is available in three different models. In order to determine which Smoke Guard System model best suits your project, we suggest that you consult with the Smoke Guard System distributor in your area. Elevator hoistway opening sizes Up to five feet wide Mounting height 10 feet high (All M400 units will have same length) Unit return sizes (projection from wall) Standard returns available: 1/2", 3/4", and 1". Housing dimensions Housing widths: 55 inches, 64 inches, 73 inches. Height: 10.5 inches. Depth: 9 inches (plus return). Unit electronic control In electrical box mounted inside the housing Emergency power source No internal emergency power source. Unit is fail safe secure and will deploy if primary power is disrupted for several seconds. Unit can also be connected to emergency power. Protection from temporary power failures A brief delay avoids nuisance deploys. Screen rewind switch Yes, located on both sides of screen Screen deploy switch Yes, located on controls inside housing Cove bases required? No Stainless steel auxiliary rails Rails optional, if elevator frame is ferrous and at least 2" wide. If rails are used, they can be painted to match or left unpainted.