Scope of Application

The HSLM8-63 high breaking capacity miniature circuit breaker is designed for AC 50/60 Hz circuits. It provides overload and short-circuit protection for circuits with a rated current up to 63 A, featuring a rated voltage of 230 V for single-pole models and 400 V for two-pole, three-pole and four-pole variants. Under normal operating conditions, it can also be used for infrequent switching operations of circuits.

This circuit breaker is widely applied in various settings including industrial facilities, commercial high-rise buildings and residential premises. It complies with GB 10963 and IEC 60898 standards.

Model Designation & Its Definition

Product Features

1.High breaking capacity: all rated current ratings achieve a breaking capacity of 6 kA or above.

2.Dual wiring design, enabling convenient connection with standard busbars as well as solid and flexible wires.

3.Equipped with an energy-stored operating mechanism for rapid contact closure. It eliminates adverse impacts caused by inconsistent manual handle operation speeds and significantly extends the service life of the product.

4.Fitted with finger-safe integrated terminal blocks for enhanced safety.

5.A wide range of optional accessories available with modular and flexible assembly, facilitating user installation.

6.The housing and several functional components are manufactured from imported plastic featuring superior flame retardancy, high temperature resistance and impact resistance.

Main Specifications

Classification by rated current In 1A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A Classification by number of poles：

a. Single-pole circuit breaker

b. Circuit breaker with two protected poles

c. Circuit breaker with three protected poles

d. Circuit breaker with four protected poles

Classification by type of instantaneous tripping unit：Type B (3In ~ 5In), Type C (5In ~ 10In), Type D (10In ~ 14In)

Technical Parameters

Overall Dimensions & Mounting Dimensions