Coleman Cable Bell Wire is a low voltage cable designed with insulated solid copper conductors that resist the spread of fire, making it i for use in thermostats, burglar alarms, and intercom systems. This cable is rated for 300 volts and comes in a 500-foot spool, ensuring you have plenty of length for your projects. The 20 AWG size with two conductors in red and white colors provides reliable performance for low voltage applications. UL listed for safety and quality, this Bell Wire is a dependable choice for your wiring needs. Model Number: 70102-66-32