The A420-065937-00 is an industrial-grade plug-in switching relays manufactured by the Guardian Electric Company. The device features a normally open contact configuration, with 8 amps of contact current carrying capacity and an AC voltage rating up to 277 volts. The relay also offers both form C and form A contacts with UL, cUL, and CSA certifications. It is designed for light, industrial and motor control applications with both signal and power switching/protection capabilities. Its robust construction with an epoxy base makes it ideal for use in harsh, industrial environments.