Littelfuse DCNLEV100-BN High-Voltage DC Contactor

The Littelfuse DCNLEV100-BN High-Voltage DC Contactor is a highly compact, severe-duty electrical switching device designed for electric vehicles (EVs) and renewable energy systems. Manufactured by Littelfuse, a global leader in circuit protection, this contactor safely handles up to 750V DC and a continuous current of 100 Amps. Its industry-standard "LEV100" footprint makes it a highly versatile choice for auxiliary high-voltage circuits and battery management systems.

Key Specifications:

• Category: Automotive Parts & Accessories / EV High Voltage Components / DC Contactors & Relays

• Product Type: High-Voltage DC Contactor

• Manufacturer: Littelfuse

• Model / Part Number: DCNLEV100-BN

• Maximum Operating Voltage: 750V DC

• Current Rating: 100A (Continuous)

• Coil (Control) Voltage: 8-16V DC (Nominal 12V automotive logic)

• Electrical Control Connection: Flying leads (Two flexible white wires)

• Power Terminals: Top-mounted internal threaded contacts

• Certifications: CE, UL Recognized (cURus)

• Origin: Made in China

Key Features:

• Hermetically Sealed Construction – As seen from the thick white epoxy potting on the top face, the internal contact chamber is completely sealed. This prevents contact oxidation and allows the unit to operate safely in harsh, dusty, or potentially explosive environments without the risk of an external spark.

• Magnetic Arc Blowout – Engineered with internal magnets to rapidly stretch and extinguish dangerous electrical arcs that occur when disconnecting live high-voltage DC loads.

• Flexible Coil Wiring – Features integrated flying leads for the 12V control circuit, allowing installers to easily splice the wires or crimp on their preferred custom connector for seamless integration into a Battery Management System (BMS).

• Compact Power Density – Features a highly space-efficient cylindrical design with a sturdy flanged base, allowing it to be easily mounted inside tight High-Voltage Power Distribution Units (HV-PDU).

Ideal For:

• Pre-charge circuits and auxiliary loads in Electric Vehicles (EVs)

• EV cabin heating (PTC heaters) and high-voltage AC compressors

• DC Fast Charging stations and EVSE infrastructure

• Solar array (PV) inverters and Battery Energy Storage Systems (BESS)

• Industrial DC motor controllers and uninterruptible power supplies (UPS)

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