Schneider Electric (Square D) LC1D25B7 Contactor

The Schneider Electric LC1D25B7 is a TeSys D series 3-pole IEC contactor engineered for motor control in industrial HVACR and automation systems. This unit operates on a 24V 50/60Hz AC coil and is rated for a 25A inductive current (AC-3) and 40A resistive current (AC-1) at 440V. For three-phase motor applications, it handles up to 15 HP at 480V and 20 HP at 600V. Built with 1 NO and 1 NC built-in auxiliary contacts, it facilitates complex control logic and interlock sequences without the immediate need for add-on blocks. The Square D LC1D25B7 is optimized for high-cycle environments, providing reliable switching for compressors, fans, and pumps. It features EverLink screw-clamp terminals to ensure consistent torque and prevent cable loosening under vibration. This model serves as the direct replacement for the 151275, making it a drop-in solution for legacy panel maintenance and refrigeration contactor upgrades.

Key Benefits:

• High Load Capacity: Rated for 25A (AC-3) and 40A (AC-1) to support heavy-duty inductive motor loads.
• Integrated Control: Features one normally open (NO) and one normally closed (NC) auxiliary contact for immediate feedback loops.
• Standardized Mounting: Fully compatible with 35mm DIN rail or direct panel mounting for streamlined installation.
• Voltage Versatility: Designed to handle power circuits up to 600VAC, suitable for commercial and industrial electrical layouts.
• Mechanical Durability: Robust TeSys D design ensures high electrical and mechanical endurance in demanding thermal environments.

Common Questions:

• Can the LC1D25B7 replace older Square D 151275 contactors? Yes, this is the direct technical replacement for the 151275 part number.
• What is the maximum horsepower rating for this contactor at 480V? It is rated to handle three-phase motors up to 15 HP at 480V.
• Does this contactor include the coil, or is that a separate component? This unit includes a factory-installed 24V AC coil suitable for most HVAC control circuits.
• What wire sizes are compatible with the screw terminals? The terminals are designed for power cables ranging from #10 to #14 AWG depending on the specific lug requirements.

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.