Power Relay

Power relays are designed for switching high currents and high voltages and are often used in power equipment and industrial systems that require high power transmission. They have strong breaking capacity and high reliability, and can effectively cope with switching operations under high load environments. Power relays are suitable for power management, electromechanical equipment, industrial control systems and other applications to ensure the safe operation of high-power equipment.

More Product Questions And Answers

What is a power relay and how does it differ from other relays?

A power relay is a heavy-duty relay designed to switch high voltage and current loads. Compared to general purpose and intermediate relays, power relays have larger contact sizes, higher ratings and greater contact gaps to prevent arcing. They are used to directly control motors, heaters, lamps and other power equipment.

  • Coil voltage and power consumption
  • Rated voltage and current for main contacts
  • Maximum switching voltage and breaking capacity
  • Contact arrangement (NO, NC, CO, multi-pole)
  • Expected mechanical and electrical endurance
  • Operating time and contact bounce
  • Mounting style and terminal type
  • Approvals and standards compliance (UL, CSA, VDE etc.)
  • Motor starters and controllers
  • Lighting contactors and panel boards
  • HVAC and refrigeration systems
  • Renewable energy inverters and battery chargers
  • Uninterruptible and backup power supplies
  • Welding and electroplating equipment
  • Elevator and crane controls
  • Automotive and transportation systems

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