A420-067881-00 is a DC Coil Electric Guardian from Guardian Electric, a manufacturer of HVAC, building and industrial automation products. The A420-067881-00 is a 24V DC coil rated for 18A @ 24V AC, with a coil resistance of 26 ohms and an adjustable power rating of 0.003A to 3A @ 24V AC. The coil is designed for monitoring, controlling, and limiting current in various applications, such as lighting, HVAC, and industrial automation. It features a self-resetting thermal trip and a 1.0 ohm impedance. This part is UL and cUL listed.