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General| Rated current (In) | 20 A |
|---|---|
| Mounting type | DIN rail |
| Poles | 3 |
| Number of poles | 3 |
| Mechanical life | 20000 cycles |
| Electrical life | 10000 cycles |
Procedures for inspecting and storing the circuit breaker upon receipt.
Preliminary inspections and preparation before installing the circuit breaker into its compartment.
Inspecting the condition of vacuum interrupters and electrical connections before installation.
Examining vacuum interrupters for cracks and seal damage.
Checking barriers and insulated parts for damage and cleaning them.
Instructions for installing the front barrier assembly onto the breaker.
How to manually charge and operate the breaker for inspection.
Details on the padlock hasp for securing the breaker in specific positions.
Explanation of four mechanical interlocks for user and breaker protection.
Step-by-step guide for inserting the circuit breaker into its compartment.
Procedure to remove the breaker from the connected position.
Procedure to remove the breaker from the test position.
Procedure to remove the breaker from the disconnect position.
Recommendations for safe handling and maintenance procedures.
Instructions for cleaning insulation to maintain performance.
Performing tests to determine the condition of the breaker current circuit.
Measuring contact wipe to determine contact wear.
Defining and measuring the gap between vacuum interrupter contacts.
Step-by-step procedure to check the contact gap.
Checking and adjusting contact sequencing for proper pole synchronization.
Checking the time taken for closing and opening operations.
Measuring the speed of contact movement during closing and opening.
Details on the operating mechanism of the breaker.
Adjusting the trip latch engagement for proper tripping function.
Information on the control device and its adjustments.
Adjusting the overtravel of the close latch release rod.
Recommendations for lubricating mechanism parts.
Procedures for performing dielectric withstand tests.
Step-by-step sequence of DC and AC closing operations.
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