For resistive heating or lighting loads (AC-1 category), the thermal current (Ith) is 315 A at 50 Hz, with an average pole impedance of 0.32 mOhm. The control circuit is 240 V AC at 60 Hz, with an inrush of 970 VA at 60 Hz (cos φ 0.3) and a hold-in draw of 66 VA. The coil pickup range is 0.85–1.1 Uc, and dropout occurs between 0.35–0.55 Uc — important to verify if your control transformer or UPS sags under load. The contactor is designed for plate mounting (not DIN rail), so panel layout must accommodate bolted or bar connections on the power circuit — the power terminals accept busbars up to 32 x 4 mm or lugs for 185 mm² cable.
Standards and Deployment Context
The contactor is certified to IEC 60947-4-1 and EN 60947-4-1 (the primary standards for contactors and motor-starters), plus JIS C8201-4-1 for the Japanese market. Rated insulation voltage is 1000 V per IEC 60947-4-1, with overvoltage category III — suitable for fixed-installation distribution panels. The front face carries IP20 protection with shrouds (per IEC 60529 and VDE 0106), meaning it is touch-safe once installed in an enclosure but not protected against moisture ingress. Operating altitude is 3000 m without derating, and the storage temperature range is -60 to 80 °C.