The Intermatic SW30MK is a spring-wound in-wall countdown timer that replaces a standard wall switch and requires no external electricity to operate. It provides a 30-minute maximum auto-off function for fans, lighting, motors and heaters and features a rotary, single-pole single-throw control with up-front teeter-type terminal connections. Electrical ratings include 20 A and 125-277 VAC with CSA and UL listings for commercial indoor use.
30-minute spring-wound mechanical countdown; no external power required
Electrical ratings: resistive 20 A (125 VAC); 10 A (250/277 VAC); tungsten 7 A (125 VAC); motor 1 HP (125 VAC) / 2 HP (250 VAC); 50/60 Hz
In-wall single-gang replacement with rotary knob, teeter-type terminals and a molded brushed-metal look plate (plastic)
Product Highlights
Spring-wound 30-minute in-wall timer; 20 A, 125-277 VAC ratings; rotary single-pole control with teeter-type terminals; CSA and UL listed.