Part identification and function
The Schneider Electric CR1F6304G7 is a TeSys F magnetic contactor, a 4-pole latching (bistable) device rated for 630 A in AC-1 utilisation category and a conventional free air thermal current (Ith) of 1000 A at 40 °C for the power circuit. Its control circuit is rated for 127 V AC (50/60 Hz or 400 Hz) and 127 V DC, with a latching consumption of 2100 VA AC at 50/60 Hz and 2300 VA DC, and an unlatching consumption of 8 VA AC at 50/60 Hz and 11 VA DC. The contactor is designed for bolted connections and carries a TH protective treatment, suiting it for controlled environment installations within industrial switchgear and motor control centres.
The 1000 A Ith rating means the contactor's main power path can carry 1000 A continuously in free air at 40 °C without exceeding its thermal limits, providing headroom for high-duty-cycle applications. Rated breaking capacity reaches 6300 A at 220...440 V and 3200 A at 1000 V for the power circuit, ensuring it can safely interrupt fault currents up to those levels without welding or excessive arcing. The operating time of 40...80 ms for latching and 50...100 ms for unlatching, combined with a maximum operating rate of 120 cycles per minute at 40 °C, makes it suitable for frequent switching applications like furnace cycling or capacitor bank switching. Mechanical durability is rated at 1,000,000 cycles, reflecting a robust design for long service life in high-cycle industrial processes. The operating temperature range of -15 to 70 °C and an altitude rating of 3000 m without derating mean it can be installed in most indoor industrial environments without special considerations.
Confirm the 127 V control circuit voltage matches your panel's control supply before committing the line item.
Integration and mounting considerations
The contactor measures 464 mm high, 389 mm wide, and 255 mm deep, requiring a substantial panel footprint. Bolted connections mean it is not a DIN-rail snap-on; plan for direct mounting on a backplate or chassis within the enclosure. The 4 NO power pole configuration (4 normally open main contacts) suits it for switching all poles of a three-phase system plus a neutral, or for two independent loads in a dual-circuit arrangement. Power dissipation is 120 W per pole in AC-1 duty, so enclosure ventilation or forced cooling may be needed to stay within the 40 °C ambient rating for Ith. Associated fuse recommendations include 1000 A BS88 or gG for the power circuit, and 630 A aM for motor-protective coordination — these guide the upstream short-circuit protection device selection.