HF92F-240A-2C21S High Power Mounted Sealed Relay 240VAC Coil DPDT 30A

The HF92F-240A-2C21S relay from Hongfa is a high-power flange-mounted sealed relay designed for industrial-grade switching applications requiring high current capacity and mains-voltage coil operation. It is typically used in industrial control systems, power distribution equipment, HVAC panels, and heavy-duty automation systems where direct AC coil control is preferred.

This model features a Form 2C (DPDT / double changeover) contact configuration, enabling it to switch two independent circuits or perform complex control functions such as interlocking, polarity reversal, or redundant load switching. Its coil is rated at 240VAC with a resistance of 4500 , allowing direct connection to mains-driven control circuits without a separate low-voltage supply.

The relay supports a robust 30A switching capacity at 250VAC (277VAC max), making it suitable for demanding loads such as motors, compressors, heaters, industrial lighting systems, and high-power distribution circuits. The silver tin oxide contact material ensures strong arc resistance and long service life under repeated high-current switching.

Its flange-mounted sealed construction provides secure mechanical installation and enhanced environmental protection against dust and contamination. With 4 kV dielectric strength and a 3 mm contact gap, the relay maintains strong isolation between coil and contact circuits, improving safety in high-voltage environments.

Features

• High-power flange-mounted sealed relay
• Form 2C (DPDT / double changeover contacts)
• 240VAC coil operation
• 4500 coil resistance
• 30A switching capacity at 250VAC (277VAC max)
• 4 kV dielectric strength
• 3 mm contact gap for enhanced isolation
• Silver tin oxide contact material
• RoHS compliant construction
• Industrial-grade durability for heavy-duty applications

Specifications

• Model: HF92F-240A-2C21S
• Brand: Hongfa
• Device Type: High Power Flange Mounted Sealed Relay
• Contact Form: Form 2C (DPDT)
• Termination Type: Flange mount
• Coil Rated Voltage: 240VAC
• AC/DC Voltage: AC coil
• Coil Resistance: 4500
• Electrical Rating: 30A at 250VAC (277VAC max)
• Poles: 1 pole (2 changeover contacts internally)

Typical Applications

• Industrial power distribution systems
• HVAC control panels
• Motor and compressor switching
• Heavy-duty automation equipment
• Industrial heating systems
• Mains-voltage control circuits

This relay is specifically suited for designs where a direct 240VAC coil control simplifies system architecture, eliminating the need for low-voltage driver circuitry while still maintaining high-current switching capability and industrial reliability.

What's in the box
1 x HF92F-240A-2C21S High Power Flange Mounted Sealed Relay 240VAC Coil DPDT 30A Industrial Relay