The Schneider Electric CR1F150EZ7 is a TeSys F series 3-pole bistable magnetic contactor rated for 150 A in AC-3 duty at 440 V, with a 48 VDC low-consumption coil. Bistable means the coil only draws power during the switching transition — 500 W DC for latching, 15 W DC for unlatching — and holds its state without continuous coil power, which cuts heat buildup and standby losses in the panel. The 48 VDC control voltage limits are 0.85 to 1.1 Uc for both latching and unlatching, so the coil holds reliably across a 40.8 to 52.8 VDC window.
Sourcing Reality: Obsolete, Sourced to Order
The buyer should confirm the 48 VDC coil voltage and 150 A AC-3 rating match the application before committing, as the obsolete status means returns or exchanges are not an option through standard distribution.
The 150 A AC-3 rating at 440 V is the motor-switching current — it handles starting and stopping a 3-phase induction motor drawing up to 150 A during the start transient. The AC-1 rating covers resistive loads at the same current level, so it also works for heater banks or lighting contactor duty. The making capacity is 1700 A rms, which handles the inrush when closing onto a motor load. Mechanical durability is 1,000,000 cycles, and the maximum operating rate is 120 cycles per minute at 40 °C — suitable for high-speed cycling applications like conveyor indexing or press controls. Power dissipation per pole is 18 W in AC-1 and 6 W in AC-3, so panel heat load is manageable. Rated insulation voltage (Ui) is 1000 V for the control circuit per IEC 60947-4, and the operating altitude is 3000 m without derating. The ambient temperature range is -15 to 70 °C, with TH protective treatment for tropical environments.
Integration Notes
Dimensions are 301 mm high, 163.5 mm wide, and 171 mm deep. The contactor is supplied as a set of 10 units, which is typical for panel builders stocking spares or building multiple starters. Operating position tolerance is ±5° from vertical, so mount it plumb on the panel backplate or DIN rail. Associated fuse ratings for short-circuit protection are 160 A aM, 250 A BS88, or 250 A gG for the power circuit. The 3 NO power pole contact composition means all three poles are normally open — no auxiliary contacts built in, so add a separate auxiliary block if you need status feedback.