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© Siemens AG 2007<br />
BD2 <strong>System</strong> — <strong>160</strong> ... 1250 A<br />
Introduction<br />
Version<br />
Type-tested low-voltage controlgear assembly (TTA)<br />
according to<br />
• IEC/EN 60439-1<br />
• IEC/EN 60439-2<br />
Degree of protection<br />
• Trunking units IP52 (standard),<br />
feeder units and tap-off units IP54<br />
• Increased protection IP54 or IP55 with accessories for<br />
operation in harsh industrial environments<br />
Components<br />
Straight trunking units<br />
• Without or with fire protection<br />
• 5-wire system<br />
• Busbars made of copper or aluminum<br />
• Standard lengths of 3.25 m, 2.25 m and 1.25 m<br />
• Selectable lengths from 0.5 m to 3.24 m<br />
•Tap-off points<br />
-None<br />
- On two sides offset every 0.25 m or 0.5 m<br />
• Fire protection: fire resistance class S90 and S120<br />
according to DIN 4102, Sheet 2 to 4<br />
Junction units<br />
• Edgewise or flat<br />
• Without or with fire protection<br />
• L-enclosure without or with configurable angle<br />
•Z-enclosure<br />
•T-enclosure<br />
•K-enclosure<br />
• Flexible junction units<br />
Feeder units<br />
• Entry/end feeder unit<br />
• Center feeder unit<br />
• Bolt terminal<br />
• Cable entry from 1, 2 or 3 sides<br />
• Distribution board feeder unit<br />
Tap-off units<br />
• Up to 25 A<br />
- Molded-plastic enclosure<br />
- Double anti-rotation feature<br />
• Up to 63 A<br />
- Sheet steel, hot-galvanized, cover with powder-spray paint<br />
finish<br />
- Double anti-rotation feature<br />
• Up to 125 A<br />
- Sheet steel, hot-galvanized, cover with powder-spray paint<br />
finish<br />
- Compulsory order of operation<br />
- Double anti-rotation feature<br />
• Up to 630 A<br />
- Sheet steel, hot-galvanized, cover with powder-spray paint<br />
finish<br />
- Tap-off unit partitioned according to function<br />
- Enclosure for protective devices<br />
- Enclosure for power pick-up<br />
- Double anti-rotation feature<br />
Ancillary equipment units<br />
• For 8 modular widths (MW)<br />
• Without or with mounting unit, cover powder-coated<br />
Accessories<br />
• End flange<br />
• For degree of protection IP54 or IP55<br />
- Flange for edgewise mounting position<br />
- Flange for flat mounting position<br />
- Flange for vertical mounting position<br />
- Additional components for tap-off units<br />
• For fixing<br />
- Universal mounting bracket for edgewise or flat arrangement<br />
- Fastening elements for vertical bars, for wall or ceiling<br />
mounting<br />
• Clamp terminal<br />
■ Benefits<br />
7 Easy and quick planning<br />
7 Time-saving and economical mounting<br />
7 Reliable and safe operation<br />
7 Flexible modular system with simple solutions for every<br />
application<br />
7 Early planning of the power distribution system without exact<br />
knowledge of load locations<br />
7 Early readiness for operation thanks to fast and simple<br />
mounting<br />
7 Innovative design: no more compensation boxes to compensate<br />
elongation<br />
7 Codable tap-off units and tap-off points<br />
7 Sealable throughout<br />
7 Accessories for increasing the degree of protection to IP55 for<br />
extreme environmental conditions<br />
5<br />
Siemens LV 70 · 2006<br />
5/3
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