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General| Rated current | Up to 4000 A |
|---|---|
| Short-circuit breaking current | Up to 63 kA |
| Type | Vacuum circuit breaker |
| Operating mechanism | Spring-operated mechanism |
| Standards | IEC 62271-100 |
| Electrical life | Up to 10, 000 operations at rated current |
Identifies circuit-breakers with a machine-readable product designation of figures and letters.
Contains service information: manufacturer, voltage, current, serial number.
Presents detailed electrical specifications for various circuit-breaker models.
Details closing, opening, arcing, and break times for circuit-breakers.
Details the external design and general construction of the 3AH47 circuit-breakers.
Illustrates and explains electrical and mechanical components within the operating mechanism housing.
Lists standard components in the basic model and optional equipment.
Explains packing procedures, handling markings, and securing units for transport.
Instructs on checking packing for damage upon arrival and reporting issues.
Details procedures for unpacking circuit-breakers from various packaging types.
Guides on installing circuit-breakers in cubicles or trucks, including pre-installation checks.
Explains connecting busbars to the circuit-breaker, including cleaning and tightening.
Details connecting control leads using the 64-pole plug connector and required tools.
Describes connecting the circuit-breaker to the high-voltage protective earth.
Outlines steps for checking circuit-breaker functional readiness before commissioning.
Describes the procedure for closing the circuit-breaker using pushbuttons or control devices.
Explains how to trip the circuit-breaker using pushbuttons or control devices.
Details essential safety precautions for maintenance, repair, and conversion work.
Provides a schedule for routine maintenance tasks based on time and operating cycles.
Describes checking vacuum integrity if leaks are suspected.
States maximum permissible operating cycles and when to replace interrupters.
