EDITORIAL
Articles & Guides
All selection guides, technical notes and brand news for DC Contactors.
- Genel
What is a Contactor Coil Economizer?
A contactor coil economizer is an electronic device that reduces power consumption by lowering the holding current once a contactor has closed. This technology minimizes heat dissipation and energy waste, extending component life in electric vehicles and industrial systems.
READ - Genel
GIGAVAC (Sensata) MXC/GXC Series DC Contactor with CAN bus Communication Protocol
The GIGAVAC MXC and GXC series by Sensata integrated CANBus technology to provide real-time telemetry and smart control for high-voltage DC systems. These hermetically sealed contactors offer predictive maintenance through data monitoring while reducing wiring complexity.
READ - BlogGenel
Precharge Calculation for Hybrid and EV Electric Vehicle Applications
Precharge circuits prevent inrush current damage in EVs by gradually charging capacitors through a resistor before main contactors close. This technical guide details how to calculate necessary resistance, peak current, and energy capacity based on capacitance and voltage.
READ - GenelGigavac
Partial or Full Contact Welding in DC Contactors
Contact welding in DC systems occurs through permanent fusion caused by overcurrents or temporary sticking due to contact bounce and low coil voltage. Maintaining proper pre-charge circuits and stable coil voltages is essential to prevent these critical hardware failures.
READ - KontaktörBlog
AC Vacuum Contactors: Operating Principles and Applications
AC vacuum contactors utilize hermetically sealed chambers to extinguish electrical arcs in high-voltage environments. These devices offer superior durability, compact designs, and enhanced safety for demanding industrial applications like motor control and heating systems.
READ - BlogGenel
DC Contactor with Current Sensing and Analog Output (MXSB Series)
The MXSB Series provides integrated Hall-effect current sensing and high-voltage power switching within a single hermetically sealed unit. This design streamlines system monitoring for electric vehicles and energy storage by providing real-time analog data without external shunts.
READ - BlogGenel
DC Overcurrent Protection Contactor (MXSA Series)
Sensata GIGAVAC introduces the MXSA Series, a high-performance DC contactor that integrates high-speed, resettable overcurrent protection to replace traditional fuses. Designed for 1000VDC systems, it reduces maintenance costs and system complexity in EV and energy storage apps.
READ - BlogGenel
DC Low Voltage Protection Contactor (MXSL15 Series)
The GIGAVAC MXSL15 is an autonomous low voltage disconnect contactor designed to protect 12V to 48V batteries from over-discharge through adjustable voltage settings. Featuring an IP67 rating and built-in control logic, it ensures high-performance switching in harsh environments.
READ - BlogGenel
Time-Delay Turn-Off DC Contactors (Gigavac MXST15/MXST16 Series 350A/600A)
GIGAVAC MXST15 and MXST16 series contactors feature an integrated opening delay to ensure controlled shutdowns in high-power DC systems. These hermetically sealed units support up to 600A and 1500VDC, protecting electronics by allowing for data saving and capacitive discharge.
READ - GenelHaber
Precharge Circuit Design for Electric Vehicles
Precharge circuits protect electric vehicle high-voltage systems by limiting inrush current to DC link capacitors via a resistor and secondary contactor. This prevents contactor welding and component damage, ensuring system longevity through a controlled power-up sequence.
READ - BlogGenel
GIGAVAC SMART CONTACTOR SERIES AND GIGAFUSE
Sensata GIGAVAC introduces Smart Contactors and GIGAFUSE technology to enhance safety and efficiency in high-voltage DC systems. These integrated solutions provide advanced thermal monitoring, programmable protection, and rapid circuit interruption for electric vehicle applications.
READ - evsarj
DC Contactor Use in EV Charging Stations
Contactor topology and recommended GIGAVAC series for EV DC fast charging stations.
READ - latchingmonostable
Latching vs Monostable DC Contactor Comparison
Energy, safety and application differences between latching and monostable DC contactors.
READ - secim-rehberidc
DC Contactor Selection Guide: Current, Voltage and Topology
Practical guide on selecting current, voltage and topology when choosing a DC contactor.
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