Schneider Electric (Square D) LC1D12B7 Contactor

The Schneider Electric (Square D) LC1D12B7 Contactor is a compact TeSys Deca (formerly TeSys D) 3-pole IEC contactor engineered for industrial and commercial motor control applications. Rated for 12 Amps (AC-3) at 440V, this non-reversing contactor features a 24Vac 50/60Hz coil and is capable of handling up to 7.5 HP at 480V. As a direct replacement for the 151276, it integrates seamlessly into existing control circuits using screw clamp terminals. This unit includes 1 NO (Normally Open) and 1 NC (Normally Closed) built-in auxiliary contacts, with the NC contact being mirror-certified for safety-related circuits. Designed for high-cycle environments, it supports an operating rate of 3600 cycles/hour and is compatible with 35mm DIN rail mounting or direct plate installation. Its 100kA SCCR (at 600V with appropriate fusing) makes it a reliable choice for magnetic starters and resistive load switching in modern HVACR and automated systems.

Key Benefits

• High Versatility: Direct substitute for obsolete 151276 models and fully compatible with LRD overload relays.
• Safety Certified: Features IP20 finger-safe terminals and mirror-certified auxiliary contacts for enhanced reliability.
• Compact Design: Standard 45mm width for high-density DIN rail configurations.
• Multi-Standard Compliance: Meets UL, CSA, IEC, and Marine standards for global deployment.
• Efficient Performance: Low hold-in power consumption of approximately 7-7.5 VA.

Common Questions

Can I use this contactor for single-phase applications?
Yes, while it is a 3-pole contactor designed for three-phase motors, it can be wired for single-phase loads by looping the phases through the contacts to ensure proper thermal distribution if used with an overload relay.

What is the maximum current rating for resistive loads (AC-1)?
The LC1D12B7 is rated for up to 25 Amps for resistive loads (AC-1) at temperatures up to 140°F (60°C).

Does this unit support front-mount accessories?
Absolutely. The TeSys Deca series supports a wide range of clip-on accessories including LADN auxiliary blocks, pneumatic timers, and surge suppressors.

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.