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General| Brand | Siemens |
|---|---|
| Model | 3VA2 400 A |
| Category | Power Tool |
| Language | English |
Details the ergonomic features of 3VA MCCBs, focusing on operation, status indication, and control elements.
Discusses rated ultimate short-circuit breaking capacity (Icu) and how MCCBs vary in classes based on size and current.
Describes ZSI for controlling total breaking time in series-connected MCCBs, minimizing clearance times.
Covers the 3VA connection system, including general information on cables/busbars and portfolio of connection components.
Explains plug-in and draw-out technologies for MCCBs, focusing on their benefits for maintenance and functional expansion.
Describes manual operators like rotary operators (front, door, side wall) and their mounting options and accessories.
Details the MO320 motor operator for remote control of MCCBs, covering its front panel, modes, and connection diagrams.
Covers locking and interlocking systems for MCCBs, including padlock devices, cylinder locks, and Bowden cable interlocks.
Introduces RCDs like Basic RCD310/510/320/520 and Advanced RCD820, detailing their features and applications.
Explains communication concepts (TIA, TBS, TIP) and protocols (PROFIBUS, PROFINET, Ethernet) for integrating MCCBs.
Details the EFB300 box for ETU upgrades, covering its functions, digital I/O, ZSI implementation, and test modes.
Describes TD300 and TD500 test devices for performing local tests on 3VA2 MCCBs with ETUs, including parameterization.
Provides circuit diagrams for basic units, switch disconnectors, trip units, accessories, and system integration.
Presents dimensional drawings for basic MCCB units, accessories like connection technology, manual operators, and mounting plates.
Explains derating and temperature compensation for MCCBs and trip units due to ambient temperature, frequency, and accessories.
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