Контактор,автоматический выключатель,солнечный инвертор,электрический счетчик,солнечные батареи
- Core Mounting Dimensions (Unit: мм)
The following dimensions are categorized by frame size (Frame I/Frame II) and mounting method (Fixed Type/Drawout Type), with weight references included for cabinet design and load-bearing calculation:
| Размер кадра | Model Series | Способ монтажа | Ширина (Вт) | Высота (ЧАС) | Глубина (Д) | Масса (кг) |
| Frame I | 3WL1116 | Фиксированный тип | 320 | 434 | 291 | Приблизительно. 45 |
| Frame I | 3WL1116 | Тип выдвижного ящика | 320 | 434 | Приблизительно. 450 | Приблизительно. 55 |
| Frame II | 3WL1216 | Фиксированный тип | 460 | 434 | 291 | Приблизительно. 56 |
| Frame II | 3WL1216 | Тип выдвижного ящика | 460 | 434 | Приблизительно. 450 | Приблизительно. 65 |
- Key Supplementary Instructions
- Dimension Consistency and Differences
Unified Height: The standard height of all 3WL series автоматические выключатели (Frame 0/I/II/III) is 434mm, which is the unified design standard of this series, facilitating the interchangeable installation of different frame sizes.
Depth Variation:
The basic depth of the fixed type is 291mm (universal for Frame I/II), excluding the protruding part of the operating mechanism.
The depth of the drawout type increases by approximately 160mm (thickness of the drawer base), with a total depth of about 450mm.
If equipped with an extended operating mechanism or other special accessories, the depth may increase further.
Impact of ETU45B-G-LCD: The type of electronic trip unit and display mode (ЖК-дисплей) have no significant impact on the overall dimensions, and only affect the layout of the front panel of the circuit breaker.
- Recommendations for Mounting Hole and Space Reservation
| Размер кадра | Recommended Mounting Hole Dimension (W×H) | Spacing Between Adjacent Circuit Breakers | Space Reservation for Top/Bottom |
| Frame I | 310mm × 424mm | ≥50mm (for heat dissipation) | ≥100mm (for wiring) |
| Frame II | 450mm × 424mm | ≥50mm (for heat dissipation) | ≥100mm (for wiring) |
- Explanation of Mounting Methods
Фиксированный тип: Small space occupation and low cost, suitable for occasions where frequent maintenance is not required.
Тип выдвижного ящика: Facilitates maintenance and replacement, ideal for key circuits. Однако, it occupies more space, and attention should be paid to the installation space of the drawer base and the operating distance (≥600mm is recommended).
- Dimension Compatibility for Replacement and Upgrade
The Siemens 3WL series has been gradually upgraded to the 3WA series (например, 3WA1116-3EG45-4GA4), which retains exactly the same mounting dimensions (ширина, высота, глубина) and can be directly replaced without cabinet modification.
III. Engineering Application Notes
- When designing the cabinet, consideration should be given to the operating space of the drawout circuit breaker to ensure that the drawer can be fully pulled out for maintenance.
- For fixed installation, cable connection space must be reserved, especially the bending radius requirements for vertical incoming/outgoing cables.
- For drawout circuit breakers weighing more than 50kg, it is recommended to design load-bearing reinforced structures for the cabinet.
- The installation environment must meet the requirements of protection class. The fixed type body has a protection class of IP30, which can be upgraded to IP40 with a protective cover installed.
