Product Category


HY-R3 Wifi MCB Smart Circuit Breaker

About this product

  • AC Frequency: 50/60Hz
  • Rated Operating Voltage: 230/400V
  • Rated Operating Current: 16A, 25A, 32A, 40A, 63A
  • Residual Current (RCD only): Leakage Protection 30mA
    Volume optimized.
  • MCB (Miniature Circuit Breaker) Compatibility

WiFi MCB Circuit Breaker HY-R3 : Unmatched Versatility and Protection


The HY-R3 series circuit breakers, tailored for AC 50/60Hz, a rated operating voltage of 230/400V, and rated operating current options of 16A, 25A, 32A, 40A, and 63A, redefine adaptability and protection. This WiFi MCB circuit breaker seamlessly integrates with the EKM3 miniature circuit breaker, providing an all-encompassing solution for diverse electrical needs.


  • Residential Flexibility:
    The HY-R3 WiFi MCB Circuit Breaker is perfect for modern homes, providing advanced protection, control, and leakage prevention. It seamlessly integrates into residential electrical systems, ensuring a secure and efficient living environment.
  • Commercial Adaptability:
    Offering adaptability, advanced protection, and modular assembly options, the HY-R3 is ideal for commercial settings. Its compatibility with MCB adds precision to electrical control, optimizing safety and performance.
  • Industrial Dependability:
    With a high breaking capacity, modular assembly options, and advanced protocols, the HY-R3 is a dependable choice for industrial installations. It ensures robust protection against electrical faults, contributing to overall system reliability.


  • Advanced Functionality:
    With over/under voltage safeguards and remote control capabilities, the HY-R3 WiFi MCB Circuit Breaker ensures comprehensive protection. The integration of MCB adds an extra layer of precision, allowing for tailored solutions in various electrical applications.
  • Modular Assembly and Protocols:
    Assemble the HY-R3 with the EKM3 miniature circuit breaker for a modular approach to protection. Supporting versatile protocols such as 485+Dry contact, Dry and wet contact+Reclosing, Automatic reclosing, and WiFi (TUYA), this circuit breaker adapts to a myriad of electrical systems.
  • Aesthetic Appeal and Reliability:
    Combining a visually pleasing design with excellent and reliable performance, the HY-R3 stands out in the electrical landscape. Its high breaking capacity, quick disconnection, and compatibility with MCB make it a reliable and adaptable choice.

The HY-R3 WiFi MCB Circuit Breaker redefines adaptability and protection with its modular design, advanced features, and compatibility with MCB. Resilient in residential, commercial, and industrial settings, it combines aesthetics with functionality for a secure and efficient electrical infrastructure.

Project Parameter
Electrical parameters Rated operating voltage AC 230V/400V
Frame rated current 63A
Breaking capacity 1cs: 6000A
Rated current 16A/25A/32A/40A/50A/63A
Accuracy level No metering
Power consumption Standby power consumption: ≤5W
Trip power consumption: ≤15W
Closing power consumption: ≤15W
Minimum operating voltage ≧ 70VAC
Communication Communication interface 485
Communication protocol Modbus-RTU (optional)
Operating Environmental
Operating temperature -25℃~+ 70℃
Pollution degree Level 2
Installation Wiring Adopts clamp terminal (wire cross-sectional area up to 35 square millimeters)
Guide rail Installed on 35.5×7.5mm standard rail
Service life Mechanical life ≥5 years
Electrical life ≥5 years
Specifications (C, D) Number of Poles Residual Current (RCD only) Communication
16A MCB 1P Leakage protection 30mA 485+Dry contact
25A MCB 2P Leakage protection 30mA Dry and wet contact+Reclosing
32A MCB 3P Leakage protection 30mA Automatic reclosing
63A RCD 1P+N / /

Product Drawings


HY-R3 Wifi MCB Smart Circuit Breaker-heyi

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