Schneider Electric (Square D) LC1K0901B7 Contactor

The Schneider Electric (Square D) LC1K0901B7 is a dual-standard 9A TeSys K contactor designed for high-cycling motor control and resistive load switching. Engineered to meet the rigorous demands of industrial and HVACR systems, this 3-pole IEC contactor operates on a 24V AC 50/60Hz coil and arrives equipped with a built-in 1NC auxiliary contact for signal interlocking or safety logic. Its footprint is optimized for space-constrained panels, featuring a compact 45mm width that mounts easily to 35mm DIN rails or via screw fixing. This model is technically identical to Carrier LC1K0901B7, making it a direct-swap component for many commercial air handling and condensing units. With an AC-3 rating of 9A and a resistive AC-1 rating of 20A, it handles inductive loads up to 5 HP at 460V. The screw clamp terminals are rated for a tightening torque of 1.3 N.m, ensuring reliable mechanical durability for over 10 million cycles.

• Universal Compatibility: Interchanges directly with Carrier LC1K0901B7 for streamlined field replacements.
• Compact Enclosure Integration: The 45mm width allows for high-density mounting in standard electrical cabinets and control skids.
• Enhanced System Logic: Integral 1 NC auxiliary contact simplifies the design of holding circuits and safety overrides without requiring add-on blocks.
• Industrial Duty: Rated for AC-3, AC-3e, AC-1, and AC-4 utilization categories, providing versatile performance in motor and heater control.
• Global Compliance: Certified by UL, CSA, IEC, CCC, and EAC, ensuring it meets strict North American and international safety regulations.

What is the maximum horsepower rating for this 24V contactor?
The LC1K0901B7 is rated for up to 5 HP at 480/600V AC in 3-phase applications and 1/2 HP at 115V AC in single-phase motor configurations.

Can I add additional auxiliary contacts to this TeSys K model?
Yes, the LC1K0901B7 allows for front-mounted auxiliary contact blocks, such as the LA1K or LA2K series, to expand the number of N.O. or N.C. signals.

Is this contactor suitable for 24V DC control circuits?
No, this specific model is designed for 24V AC control power. Using DC voltage will cause the coil to fail; always verify coil voltage before energizing.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.