BTB MCCB Instruction Manual

INSTRUCTIONS MANUAL MCCB
Frames 125A to 1600A
Front Mounting Type
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Be sure to read the manual and safety precautions before use products.
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This manual should be given to the person who actually uses the products and is
responsible for their maintenance.

SAFETY PRECAUTIONS

Before installation, wiring, operation, maintenance and inspection of the device, be sure
to read the safety precautions carefully and follow the message to ensure proper operations.
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DANGER: Offending against the message will result in death or serious injury.
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CAUTION: Offending against the message will result in minor injury or physical
damage.
1. Turn off the upstream circuit breaker before installing or service to prevent electric
shocks and burns due to short circuit.
2. Do not touch any live naked terminals. It makes an electric shock.
3. Do not touch two live lines simultaneously. The circuit breaker does not operate
even if an electric shock occurs.
1. Before installation, be sure to read the manual carefully to ensure proper operation.
2. Installation, maintenance and inspection of the circuit breaker should be performed
by qualified engineers having special knowledge.
3. Do not install the circuit breaker in place of environment with shock, high
temperature, humidity, dust, corrosive gases, excessive vibration, etc. to prevent fire
accidents and malfunction of the device.
a)Ambient Temperature: -5~40°C
b)Relative Humidity: 45-95%
c)Altitude: less than 2000m
d)Do not install the circuit breaker in place of environment with shock, high
temperature, humidity, dust, conductive powder, corrosive gases, excessive vibration, etc.
4. Use the breaker in a range of the rated voltage and current shown on the name
plate. Or it may cause malfunction.
5. Set the breaker with correct direction, to prevent fire accidents and malfunction.
6. Please tighten the terminal screw in proper torque to prevent overheating
M10:240~300kgf.cm M12: 400-500kgf.cm
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DANGER

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CAUTION