Overview Operation Mode : Off Current Rating : 0.5 Amps Operating Voltage : 1E+2 Volts Contact Type : Normally Closed Connector Type : Wire Leads Brand : Gebildet Terminal : Screw Item dimensions L x W x H : 4.72 x 3.54 x 5.91 inches Circuit Type : 1-way Mounting Type : Surface Mount Switch Type Magnetic Reed Switch : Material Zinc Alloy : Switch Type Magnetic Reed Switch : Material Zinc Alloy About this item [Specification] - Current: 0.5A ; Voltage: 100V ; Power Rating: 10W; Action Distance: 15mm [Dimension] - Cable Length: 30cm/11.8"; Total Size: 48.5 x 24.6 x 15mm / 1.91 x 0.97 x 0.59 inch (L*W*H) [Material] - The magnetic switch alarm is with durable zinc alloy housing for better rust resistance Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separates, the circuit is not conductive ( light off ) [Applications] - The Rolling Door Contact is designed for use with window and door alarm systems, such as garage, industrial warehouse and shops, etc.