N.C. SPST Magnetic Reed Switch

Philmore 30-17050 N.C. SPST Magnetic Reed Switch The Philmore 30-17050 is a Normally Closed (N.C.) Single Pole Single Throw (SPST) Magnetic Reed Switch designed for precise circuit control. This switch operates using a magnetic field, making it ideal for use in security systems, monitoring devices, and other applications requiring reliable actuation. Key Features Switch Type: SPST, Normally Closed (N.C.) Actuation Method: Magnetic Initial Contact Resistance: 300 Meg Ohms (max) Current Rating: 0.5A at 100V DC / 125V AC Operating Gap: 1.25 inches (max) Mounting Centers: 2.094 inches (2-3/32") Mounting Hole Diameter: 0.15 inches (max) Terminal Type: Screw terminals for easy connections Housing Material: Durable construction for long-term use Applications This magnetic reed switch is suitable for: Security systems for doors and windows Monitoring systems requiring normally closed functionality Low-voltage control circuits Installation Example In a home security system, the Philmore 30-17050 is mounted on a door frame with the magnet installed on the door. When the door is closed, the circuit remains open due to the magnetic field's presence. As the door opens and the magnet moves away, the circuit closes, triggering an alarm or notification. Why Buy from Tri-Tek Electronics? Tri-Tek Electronics, an authorized distributor based in Mesa, AZ, guarantees full manufacturer warranty coverage, competitive pricing, and factory support for all purchases. Note: This product complies with California Proposition 65 warnings due to materials that may contain DEHP and/or Lead. Visit P65Warnings.ca.gov for more details. Specifications Attribute Value Weight 0.95 oz Contact Resistance 300 Meg Ohm (max) Action Normally Closed when magnet is present Actuator Magnet Operating Gap 1.25 inches (max) Current Rating 0.5A @ 100V DC / 125V AC Mounting Centers 2.094 inches (2-3/32") Mounting Hole Diameter 0.15 inches (max)