Power relays

High-current contactors are critical components in the electrical systems of military and special-purpose vehicles, enabling safe switching and isolation of high-current power circuits.

They are used in starting systems, power distribution networks, battery systems and energy management applications where high durability, operational reliability and environmental resistance are required.

POLSTERTEC is an Austrian manufacturer specializing in high-current contactors for military, industrial and special vehicle applications, covering current ranges from 50 A to 500 A with 12 V, 24 V and 48 V control voltages.

The product portfolio includes monostable and bistable contactors, variants with integrated control electronics, and CAN-enabled solutions. Products offer IP67 / IP6K9K ingress protection and selected military VG certifications.

GIGAVAC (Sensata Technologies) provides high-voltage contactors engineered for operation in 48–1500 V DC electrical systems, including HV applications, energy storage systems (ESS) and DC fast charging infrastructure.

The portfolio incorporates hermetically sealed designs together with ceramic-to-metal and glass-to-metal sealing technologies, meeting UL, CE, IEC 60664-1 and ISO 26262 compliance requirements.

KISSLING (TE Connectivity) provides high-performance contactors and power relays engineered for demanding military, industrial and special-purpose vehicle applications.

The product range includes monostable and bistable contactors, intelligent electronically controlled variants, current sensing solutions and high-voltage switching devices up to 1000 V DC. Products offer IP67 / IP6K9K ingress protection, high mechanical endurance and compliance with military and industrial requirements.