HS Code for Medium voltage circuit breakers

Medium voltage circuit breakers are classified under HS code 8535.21, a designation within Chapter 85 which covers electrical machinery and equipment. Heading 8535 is reserved for electrical apparatus used for switching or protecting electrical circuits, or for making connections to or in electrical circuits, for a voltage exceeding 1,000 volts. The subheading 8535.21 specifically identifies automatic circuit breakers designed for a voltage exceeding 1,000 volts but less than 72.5 kV. This range encompasses what is industrially defined as "medium voltage," typically used in power distribution networks, industrial plants, and large commercial buildings. The classification is determined by the device's ability to automatically interrupt current flow after a fault is detected, distinguishing it from manual switches or fuses. Technical parameters such as the rated voltage and the breaking capacity are critical for this classification. By using 8535.21, trade officials can distinguish these industrial-grade components from high-voltage transmission equipment (above 72.5 kV) and low-voltage residential equipment (under 1,000 V). The construction of the breaker, whether vacuum, SF6 gas, or oil-insulated, does not change this primary classification as long as the voltage limits are met.

Products Included

• Vacuum circuit breakers (VCB) for 1kV to 72.5kV
• SF6 gas circuit breakers for medium voltage distribution
• Oil circuit breakers within the 1kV-72.5kV range
• Air blast circuit breakers for medium voltage applications
• Reclosers for medium voltage overhead lines

Common Misclassification

The most frequent misclassification is with HS code 8536.20, which covers automatic circuit breakers for voltages not exceeding 1,000 volts (low voltage). Another common error is using 8535.29, which is reserved for high-voltage circuit breakers exceeding 72.5 kV. Furthermore, simple disconnect switches or isolators that do not have automatic breaking capabilities should be classified under 8535.30 rather than 8535.21.

FAQ

What is the HS code for medium voltage circuit breakers?

The HS code is 8535.21, covering automatic circuit breakers for voltages between 1,000 volts and 72.5 kV.

Are fuses included in this HS code?

No, fuses for voltages exceeding 1,000 volts are classified under HS code 8535.10.