Hongfa HFE82V-20 High-Voltage DC Relay

The Hongfa HFE82V-20 High-Voltage DC Relay is a compact, robust electrical switching device engineered for auxiliary systems in electric vehicles (EVs) and advanced energy storage. Manufactured by Xiamen Hongfa Electric Power Controls Co., Ltd., this relay is designed to safely handle up to 750V DC and 20 Amps of continuous current. It is an essential component for isolating high-voltage auxiliary circuits, ensuring safety and reliability.

Key Specifications:

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

• Product Type: High-Voltage Auxiliary DC Relay

• Manufacturer: Xiamen Hongfa Electric Power Controls Co., Ltd.

• Model / Part Number: HFE82V-20 (750-12-H-Q2J-1)

• Maximum Switching Voltage: 750V DC

• Rated Continuous Current: 20A

• Coil (Control) Voltage: 12V DC

• Electrical Connection: Standard 1/4" (6.3mm) Quick-Connect spade terminals (Top-mounted)

• Housing Material: High-temperature, flame-retardant synthetic resin

Key Features:

• Safe Auxiliary Switching – Specifically designed for lower-current, high-voltage applications, featuring internal magnetic arc blowout technology to safely extinguish electrical arcs when disconnecting live DC circuits.

• Sealed Construction – The internal contacts are hermetically sealed, preventing oxidation and allowing the relay to operate safely in volatile or dusty environments without the risk of arcing causing a fire.

• Simple 12V Control – Operates on standard 12V automotive logic, making it easy to integrate with vehicle control units or battery management systems.

• Easy Installation – Features top-mounted spade terminals for quick wiring and heavy-duty base mounting flanges with metal crush sleeves for secure, vibration-proof installation.

Ideal For:

• EV PTC (Positive Temperature Coefficient) cabin heaters and high-voltage AC compressors

• EV high-voltage auxiliary power distribution units (PDU)

• Pre-charge circuits for main battery contactors

• Battery Energy Storage Systems (BESS) and solar (PV) auxiliary circuits

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