The Schneider CR1F150GZ7 is a TeSys F series 3-pole bistable magnetic contactor rated for 150 A in AC-3 duty at 440 V, with a 127 VDC low-consumption coil. Bistable means the contactor latches and unlatches via a DC pulse — the coil draws 500 W during the 35...40 ms latching pulse, then drops to 15 W DC for unlatching, holding no power in either stable state. This makes it suited for applications where continuous coil power is undesirable, such as energy-conscious or battery-backed circuits. The AC-1 rating (resistive load) carries the full 250 A, while AC-3 (motor starting) is rated at 150 A. Power dissipation per pole runs 18 W in AC-1 and 6 W in AC-3 — useful for enclosure thermal budgeting. Mechanical durability is rated at 1,000,000 cycles, with a maximum operating rate of 120 cycles per minute at 40 °C. The contactor is supplied as a set of 10 units, consistent with panel-builder or OEM batch ordering.
If you are evaluating a replacement, a parametric cross-reference within the TeSys F family may exist, but a direct pin-compatible drop-in is not confirmed from this evidence. Submit the RFQ with your application details (load type, voltage, enclosure) so we can match the closest active alternative.
The 150 A AC-3 rating at 440 V governs motor switching — this contactor handles a motor load up to that current during starting and running. The 250 A Ith (free-air thermal current) is the resistive-load limit; do not exceed it in continuous AC-1 duty. Rated breaking capacity varies by voltage: 1500 A at 220...440 V, 1200 A at 500 V, 1100 A at 600...690 V, and 450 A at 1000 V. The making capacity (Irms) is 1700 A. These numbers define the fault-clearing capability — important for coordination with upstream protection. Associated fuse ratings are 160 A aM, 250 A BS88, or 250 A gG for the power circuit. The control circuit impedance is 0.45 Ohm at 250 A, 50 Hz. Physical dimensions: 301 mm height, 163.5 mm width, 171 mm depth. The TH protective treatment indicates tropicalization for humid environments. Operating position tolerance is ±5° from vertical.
Deployment Context
This contactor is a panel-mount component, typically installed on a mounting plate or DIN-rail adapter within an industrial control cabinet. The 3-pole configuration with 3 NO power poles suits three-phase motor circuits, resistive heating banks, or capacitor switching. The bistable coil (127 VDC) means a DC control supply is required — verify your control transformer or battery bank delivers the latching pulse within 0.85...1.1 Uc limits.