Overview
The Square D LC2D12F7 is a TeSys D-series reversing contactor from Schneider Electric designed for reversible motor control in industrial automation. This 3-pole IEC contactor combines two LC1D12F7 contactors with a LAD9R1V reversing kit, providing both electrical and mechanical interlock protection to prevent simultaneous forward and reverse operation. With a 110V 50/60Hz AC coil rating, the LC2D12F7 suits applications requiring safe motor reversal across multiple voltage and power levels.
Key Features
- Dual Interlock Design: Electrical and mechanical interlocking prevents simultaneous coil energization and protects against accidental reverse direction.
- Built-in Auxiliary Contacts: 2NO (normally open) and 2NC (normally closed) base-mounted auxiliary contacts for signalling and status monitoring.
- DIN Rail Mounting: Standard 35mm DIN rail compatible for compact panel layouts.
- Pre-wired Reversing Circuit: Factory-assembled reversing kit with integrated line and load-side wiring harnesses reduces installation time.
- Finger-Safe Terminals: IP 2-rated screw clamp connections for secure, color-coded wiring.
- International Certifications: UL, CSA, IEC, CCC, EAC, and Marine standards compliance; RoHS/REACh Green Premium certified.
Technical Specifications
- Coil Voltage: 110V AC, 50/60Hz
- Inductive Current Rating (AC-3): 12A @ ≤440V
- Power Rating at 400V (50Hz): 5.5kW
- Horsepower Ratings (60Hz): 1HP @ 115V single-phase; 3HP @ 230/240V 3-phase; 7.5HP @ 460/480V 3-phase; 10HP @ 575/600V 3-phase
- Poles: 3-pole
- Auxiliary Contacts: 2NO + 2NC (mirror-certified NC)
- Dimensions (H × W × D): 3.03 × 3.54 × 3.39 inches (77 × 90 × 86 mm)
- Weight: 1.54 lbs (0.697 kg)
- Mechanical Life: 20,000,000 cycles (B10d per EN/ISO 13849-1)
- Electrical Life: 1,369,863 cycles nominal load (B10d per EN/ISO 13849-1)
- Operating Temperature: −40 to +70 °C
- Connection Method: Screw clamp terminals
- Series: TeSys D (Telemecanique)
Typical Applications
The LC2D12F7 reversing contactor is ideal for:
- Reversible three-phase motor control in pumps, fans, compressors, and HVAC systems.
- Conveyor systems and material handling equipment requiring forward/reverse operation.
- Machine tools and industrial presses with reversing duty cycles.
- Process automation where directional control and safety interlocking are critical.
- Control panel integration in manufacturing, mining, and utility applications.
Compatibility & Replacements
Compatible With
- IEC 60947-4-1 motor control standards
- Schneider Electric TeSys D contactor ecosystem (expandable with LADN auxiliary blocks and LRD thermal overloads)
- 35mm DIN rail mounting systems
- Panel-mount installation (direct screw mounting)
- Soft starters and variable frequency drives (VFD) in legacy reversing circuits
Replaces / Drop-In Replacement For
- Telemecanique LC2D12 (base model with switchable coil)
- Other 12A IEC reversing contactors rated 5.5kW@400V with equivalent 110V coil options
- Note: Always verify exact coil voltage and auxiliary contact configuration before substitution.
Works With
- Auxiliary Contact Blocks: LADN side-mounted and front-mounted blocks for extended logic control.
- Thermal Overloads: LRD overload relays for motor protection.
- Control Systems: Hardwired relay logic, legacy PLCs, and small control circuits using 110V AC coil inputs.
- Communication: Not network-enabled; functions as discrete motor control element in electromechanical control schemes.
