LC1D25D7 SCHNEIDER

LC1D25D7 SCHNEIDER Circuit Board

Product  Description：

Schneider Electric Circuit Boards are specialized printed circuit board assemblies (PCBAs) engineered to manage power distribution, logic execution, gate driving, and signal processing across the full spectrum of Schneider Electric industrial automation and power equipment. Built as integral internal components within Variable Frequency Drives (VFDs) such as the Altivar series, uninterruptible power supplies (UPS), and protection relays, these circuit boards process high-density control signals and execute high-voltage power conversion. Manufactured to rigorous industrial standards, they form the functional backbone that translates low-voltage control commands into precise electrical and mechanical outputs.

Product Parameters

The operational parameters of Schneider Electric Circuit Boards are designed around environmental durability and high electrical efficiency:

• Circuit Topology: Multi-layer PCB design utilizing high-grade FR-4 flame-retardant substrate materials with thick copper trace layering for high current-carrying capacity.

• Rated Operating Voltage: Varies by board function, ranging from 3.3V DC to 24V DC for logic and signal processing circuits, up to 800V DC or higher on power stage and inverter boards.

• Dielectric Insulation: High-voltage galvanic isolation between control signals and power traces, typically rated up to 2500V AC or 4000V DC peak.

• Conformal Coating Standard: Standard application of Class 3C3 or 3S2 protective conformal coating in accordance with IEC 60721-3-3 for chemical and moisture resistance.

• Thermal Tolerance: Continuous operating temperature range from -10°C to 60°C, with thermal storage limits spanning -40°C to 85°C.

• Signal Interfaces: Multi-pin edge connectors, high-density board-to-board headers, and integrated terminal interfaces optimized for high-speed bus communication.

Product Advantages

Schneider Electric Circuit Boards are engineered to deliver robust performance, longevity, and high system reliability:

• Superior Environmental Protection: Heavy-duty conformal coating shields sensitive surface-mount components from humidity, conductive dust, metallic filings, and corrosive airborne fumes common in heavy industrial facilities.

• Advanced EMI and EMC Shielding: Designed with integrated ground planes and high-frequency filtering components to suppress electromagnetic interference, preventing signal jitter and nuisance faults in high-noise environments.

• Extended Service Life: Built using premium industrial-grade solid-state capacitors, power MOSFETs, and thick-film resistors rated for continuous 24/7 duty cycles.

• Precision Power Management: Integrated gate drive circuits provide microsecond-level switching responses for IGBTs, minimizing thermal losses and increasing overall energy efficiency.

• Compact Surface-Mount Design: High-density SMT manufacturing allows maximum functionality within a small footprint, enabling slim drive profiles and compact cabinet layouts.

Product Applications

These circuit boards serve as essential internal modules across a wide array of energy management and automation hardware:

• Variable Frequency Drives: Functioning as main control, power, or gate driver boards within Altivar AC drives used for pumps, fans, and industrial conveyors.

• Uninterruptible Power Supply Systems: Managing AC-to-DC rectification, battery charging cycles, and DC-to-AC inversion in Galaxy and Smart-UPS platforms.

• Motor Protection Relays: Serving as digital signal processing boards in TeSys motor management systems to evaluate thermal models, phase loss, and ground faults.

• Industrial Circuit Breakers: Integrating intelligence modules into MasterPact and Compact NSX molded-case circuit breakers for electronic trip units and metering.

• Solar and Renewable Inverters: Controlling DC power conditioning, maximum power point tracking, and grid synchronization in commercial renewable installations.

Important Precautions

To avoid hardware damage, premature component degradation, or personal injury, the following guidelines must be followed:

• Residual High Voltage Handling: When servicing circuit boards inside power equipment like VFDs or UPS systems, wait a minimum of 10 to 15 minutes after power disconnection to allow large bus capacitors to discharge fully. Verify that the DC bus voltage is below 50V DC with a calibrated meter before touching the board.

• Electrostatic Discharge Protection: Always wear a properly grounded anti-static wrist strap when handling, replacing, or storing uninstalled circuit boards. Static discharge can permanently damage sensitive microprocessors and gate drive ICs without visible physical marks.

• Thermal Compound Application: When replacing power stage or driver boards mounted directly to heatsinks, ensure the metal mounting surface is cleaned thoroughly and a uniform layer of thermal grease is re-applied to ensure proper heat dissipation.

• Screw Torque and Mounting Alignments: Tighten all board retaining screws and electrical power terminals to the exact torque specified in the equipment manual. Over-tightening can crack the PCB substrate or break inner trace layers, while loose screws can lead to high-resistance arcing points.

• Correct Board Version Verification: Ensure replacement boards match the exact part number, revision code, and voltage classification of the original board. Installing an incompatible board generation can result in instant board failure or damage to the main controller logic.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.