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I. Purpose and Scope of Application
The HYM1L Series Earth Leakage Circuit Breaker (hereinafter referred to as
“earth leakage circuit breaker”) is one of the new earth leakage circuit
breakers designed and developed by our company with international
advanced technology. This series of products is suitable for the circuits with
AC 50 Hz, rated isolation voltage of 800 V, rated working voltage of 400 V,
and rated current up to 630 A and below, which can provide indirect contact
protection for people with fatal electric shock, and can also be used to
prevent major fire hazard caused by grounding fault current caused by
equipment insulation damage. It can be used to protect the overload, short
circuit and undervoltage of the line, and can also be used for infrequent
transfer of lines. Furthermore, this series adds the A-type residual current
(with DC component) protection function.
The earth leakage circuit breaker is characterized by small size (equal to that
of the corresponding molded case circuit breaker), high breaking current,
short flashover and adjustable residual current operating time. It can be
equipped with alarm contact, shunt trip, undervoltage release, auxiliary
contact, handle rotation operating mechanism, electric operating mechanism
and other accessories, and can adopt the wiring in front of the plate, behind
the plate and of the plug-in type, which is an ideal product for users.
The product complies with GB/T 14048.2.
II. Normal Working Conditions
1. The altitude of the installation location shall not exceed 2,000 m.
2. The ambient air temperature shall be -5°C ~ +40°C. The average
temperature within 24 hours shall not 35°C.
3. The relative atmospheric humidity shall not exceed 50% when the
ambient air temperature is +40°C. The average maximum relative
humidity of the wettest month is 90%, and the average minimum
temperature of that month is +20°C.
4. Installation category: III.
5. Contamination grade: Grade 3.
6. The installation place shall have no significant shaking and impact
vibration.
7. The magnetic field near the installation site shall not exceed 5 times of
the geomagnetic field in any direction.
8. The earth leakage circuit breaker shall generally be installed vertically.
The "1, 3, 5 and N1" terminals of the circuit breaker are connected to
the power supply, and the "2, 4, 6 and N2" terminals are connected to
the load, which cannot be reversed. If special reverse connection is
required, please indicate when ordering.
