HG4-DC48V 48V 20A 4PDT High Power Plug-In Relay 14 Pin Relay

The HG4-DC48V is a high-power industrial plug-in relay designed for reliable multi-pole switching, high electrical durability, and safe operation in demanding control systems. Featuring a Form 4C (4PDT / four pole double throw) contact configuration, this relay enables simultaneous control of multiple independent circuits, making it ideal for complex automation, control panels, and industrial power distribution systems.

Operating with a 48VDC coil voltage, the HG4-DC48V is optimized for industrial control environments where higher control voltages are used for improved noise immunity and system stability. The coil resistance of 1.05k ensures efficient energization and stable switching performance, even in continuous-duty applications.

The relay supports a maximum switching capacity of 20A at 250VAC, making it suitable for controlling a wide range of electrical loads such as motors, pumps, industrial lighting, HVAC systems, control transformers, and automation equipment. Its robust contact system ensures reliable current handling and long service life under repetitive switching conditions.

Built with Ag (silver) contact material, the HG4-DC48V provides excellent electrical conductivity, low contact resistance, and reliable arc resistance, ensuring stable performance in high-demand industrial environments. This helps reduce wear and extends operational lifespan even under frequent load switching.

The relay features a plug-in terminal design with 14 pins, allowing for easy installation, replacement, and maintenance in industrial relay sockets and control panels. Its large form factor (68 × 36 × 56 mm) provides mechanical stability and supports multi-circuit switching in compact control cabinet layouts.

With 2kV isolation voltage, the HG4-DC48V ensures strong electrical separation between coil and contact circuits, enhancing system safety and protecting sensitive control electronics from voltage spikes and interference.

The relay is also UL/CSA approved, confirming compliance with international safety and performance standards, making it suitable for use in certified industrial and commercial equipment.

Key Features

Form 4C (4PDT) multi-pole contact configuration

48VDC coil voltage for industrial control systems

High switching capacity: 20A at 250VAC

Silver (Ag) contact material for reliable conductivity

Plug-in design for easy installation and replacement

14-pin configuration for multi-circuit control

2kV coil-to-contact isolation

UL/CSA certified for safety compliance

Durable large-frame industrial construction

Typical Applications

Industrial automation and control panels

Multi-circuit switching systems

Motor and pump control

HVAC and building management systems

Power distribution and control cabinets

Machinery and process control systems

The HG4-DC48V delivers robust multi-pole switching capability, high electrical reliability, and industry-certified safety performance, making it an excellent solution for engineers and system designers working with complex industrial control and automation systems requiring dependable high-power relay switching.

What's in the box
1 x HG4-DC48V 48V 20A 4PDT High Power Plug-In Relay 14 Pin Relay