DC Contactors and Relays

ABOUT DC CONTACTORS AND RELAYS

DC Contactors and Relays - Contactor DEVR20
DC Contactors and Relays play a crucial role in protecting all types of electric vehicles. At Hill Tech, we are at the forefront of the latest technical innovations, focusing on the electrification of equipment and vehicles that are shaping and reshaping our world. Our expertise in developing cutting-edge electronics includes a comprehensive range of DC Contactors and Relays designed to meet diverse application needs.

Our products ensure reliable performance, safety, and efficiency in various applications. Trust Hill Tech to provide the advanced solutions necessary for your electrification projects. Contact us to learn more about how our DC Contactors and Relays can benefit your specific requirements.

 

What is a DC Contactor?

In basic terms, a DC contactor is an electrically controlled switch or relay. Depending on the region, the terms "contact" and "relay" might be used interchangeably. These devices are used to switch electrical power in a circuit, with power ranges varying from as low as 24 volts (often referred to as a relay) to several kilovolts (typically referred to as a contactor).

What is the difference between DC Contactors and Relays?

 
        • Relays: Lower voltage, lower power applications
        • Contactors: Higher voltage, higher power applications

What are the key considerations when selecting DC Contactors?

Polarization in DC Contactors
Polarization refers to the direction of current flow through the contactor. In polarized contactors, the magnetic field helps extinguish the arc during switching, optimizing the contactor's lifespan. Non-polarized contactors are designed for applications where current may flow in either direction, though they might have a slightly reduced lifespan compared to polarized contactors.
 
Applications of DC Contactors
 
          • Off-Highway Vehicles: Used in electric tractors, small excavators, and forklift trucks for main and auxiliary power circuits.
          • Heavy Trucks and Buses: High voltage and current applications require multiple contactors for various loads and a pre-charge contactor to manage inrush currents.
          • EV Charging Stations: High-power DC contactors in charging cabinets to handle large currents safely.

DC Contactor Product Portfolio

DC Contactors and Relays- Contactor CHV-601
Hill Tech, with a longstanding tradition in industrial power conversion, offers a comprehensive range of specialized contactors for DC power switching. Our contactors can handle voltages up to 1000VDC and currents up to 600A, ensuring robust performance for various applications. For battery storage solutions, we provide larger DC contactors capable of switching up to 2000A.

Additionally, our product line includes AC-switching solid-state contactors and definite purpose contactors designed for temperature and ventilation control. We are dedicated to delivering high-quality, reliable solutions tailored to your needs. Contact us today to select the optimal contactor for your specific application..

 

Types of DC Contactors

    • HVDC - High Voltage DC.
    • LVDC Low Voltage DC.
    • SSC - Solid State Contactors.
    • DPC -Definite Purpose.
High Voltage DC
HVDC contactors, spanning a range of voltages and currents from 10A/450VDC to 800A/1500VDC and beyond. These contactors are suitable for a variety of applications, including pre-charge, discharge, and main contactors for electric vehicles of all sizes. They are also ideal for energy storage and photovoltaic (solar) power systems. Our product line is continually updated to meet evolving market demands.
Low Voltage DC
LVDC contactors designed for DC voltage switching, which are capable of handling up to 2000A. Our selection includes fully sealed and latching contactors, ideal for automotive applications such as winch control, cranes, pumps, and battery disconnects. These contactors are also suitable for static applications like battery switching, uninterruptible power supplies, and controlling larger LVDC motors. Various series are available with Normally Open (NO), Normally Closed (NC), Changeover (CO), and Double Pole options.
Solid State Contactors
Solid State Contactors are durable, dependable devices equipped with integral heatsinks, ideal for high-power three-phase switching up to 480VAC and 660VAC, and currents exceeding 100A. They are typically used in applications requiring precise temperature control and motor drive systems where frequent high-current switching is necessary. We offer customization services and will collaborate with your team to ensure the successful completion of your project.
Definite Purpose Contactors
(DPCs) Contactors are durable, electrically operated switching devices engineered for the HVAC industry, including heating, ventilation, air conditioning, and refrigeration applications. They can be controlled via automatic thermostat systems or manual push buttons. Our Definite Purpose Contactors are compatible with industry-standard mounting and comply with RoHS regulations.

 

Relay Product Portfolio

DC Contactors and Relays- Relay 30FLA
With over half a century of expertise in switching technology, Hill Tech is proud to offer a superior range of power relays and contactors known for exceptional performance and reliability. Our industry-leading innovation ensures that our products meet the most demanding requirements, providing you with the best solutions for your applications.

We are committed to helping you succeed by delivering high-quality, dependable products. Connect with us today to discuss your specific needs and discover how our advanced solutions can benefit your projects. Let Hill Tech be your trusted partner in powering the future of electrification.

 

Types of Relays Offered

    • Green Energy/HVDC.
    • Standard.
    • Special Function.
    • Industrial.
    • Latching.
    • Signal.
    • PCB Mount.
    • Solid State Relays.
 
Green Energy/HVDC:
These include industry-leading relays specifically engineered for DC switching, particularly for voltages above 24VDC and up to 450VDC. This evolving range caters to the increasing demand for reliable switching solutions in various small battery-operated machinery. Applications span from floor sweepers to construction vehicles and forklift trucks. As the range grows, it continues to support diverse high-voltage requirements in compact battery-operated equipment.
Standard
We provide a comprehensive range of industry-leading plug-in automotive relays featuring standard “ISO” footprints. Designed for direct wiring or use with our automotive sockets, our relays can handle up to 100A at 12VDC in a Normally Open configuration or 80/60A in a Changeover style. These relays are integral to various vehicle functions, including headlights, horns, air conditioning, seat heaters, electric windows, and heated rear screens. Beyond automotive uses, plug-in relays excel in low-voltage DC switching applications such as marine environments, wheeled vehicles, and static systems like greenhouse window controls or gate motors, where DC motor control is essential.
Special Function:
Our automotive special function relays encompass Timer Relays, LED Indicator Flashers, and Controllers. Notable innovations include a Micro-ISO Timer Relay and a pioneering Mini-ISO Seat Belt Controller. Additional products feature Jumper Links for relay bypass and a DC Motor Reverser. Our timers are essential for ECU control, ensuring proper shutdown post-ignition..
Industrial:
These superior Industrial Relays include options for direct DIN rail, chassis, and socket mounting, adhering to widely recognized industry standards. These relays are ideal for diverse applications like HVAC systems, control panels, machine tools, heavy machinery, and various other industrial and domestic uses.
Latching:
Our selection of latching relays is tailored for electricity metering and energy conservation, capable of switching currents from 16A to 120A or higher while meeting industry standards. These relays offer extensive customization options, including various terminal arrangements to match specific customer requirements. Shunts and current coils can also be integrated upon request.
Signal:
We complement our range of power switching relays and contactors with a selection of industry-standard small SPDT and DPDT signal relays, including latching and surface mount variants. Suitable for signal and low-power switching, applications include audio intercoms, alarm output contacts, and model train controls.
PCB Mount:
Our PCB automotive relays feature ultra-miniature designs with robust high-current switching capabilities. They include dual relays and industry-standard styles with versatile options. These relays are crucial for powering seats, windows, rear screens, fog lights, indicators, and more in vehicles. They're also used in electric scooters, wheelchairs, remote controls, and garage door motors, favored by leading vehicle manufacturers.
Solid State Relays:
SSRs are durable devices designed for robust high-power switching, supporting up to 480VAC and 660VAC with currents exceeding 100A. Available in single-phase, dual-phase, and three-phase configurations, they feature integral finger protection and LED indication. SSRs are ideal for temperature control and motor drive systems requiring frequent switching operations.

DC Contactors and Relays- Contactor DEVR10
Hill Tech is dedicated to delivering high-quality, reliable relays and DC contactors, powering the future of electrifying traditional equipment and vehicles that once relied on diesel and gas engines. We pride ourselves on providing top-tier products that meet the rigorous demands these industries face in their shift towards electrification. By partnering with Hill Tech, you gain access to a team of professionals passionate about advancing electrification technology.

Our relays and DC contactors are engineered for superior performance, ensuring safety, efficiency, and durability in every application. We understand the unique challenges and opportunities in these markets and are committed to supporting your projects with cutting-edge solutions. Whether you are developing new systems or upgrading existing infrastructure, Hill Tech offers the reliability and performance you need to succeed.

Experience the Hill Tech difference. Our relentless focus on quality and customer satisfaction ensures that you receive products and services that exceed expectations. Partner with us for your next project and discover the innovation and expertise that define Hill Tech. Let us help you drive the future of electrification in your industry with our advanced relay and DC contactor solutions. Contact us today to learn more about how we can support your electrification initiatives.