Key facts
- Brand
- Siemens
- Model
- 3WT
- Industry
- Industrial
- Documents
- 6
- Languages
- ZH · EN
- Last added
- 2026-10-14
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Siemens 3WT Air Circuit Breaker Product Brochure
The document presents the new generation of Siemens 3WT air circuit breakers, designed as a wise choice for general, safe, and intelligent power distribution. The product line covers ratings from 400A to 4000A (AC) in both fixed and withdrawable configurations. This manual is written in Chinese.
Read onlineSiemens 3WT specifications
| Rated Current In (50°C) | 400A to 1600A |
|---|---|
| Rated Working Voltage Ue | 690V AC and below |
| Rated Short-Circuit Breaking Capacity Icu (Option Z) | 66kA at 690V |
| Mechanical Life (No Maintenance) | 10,000 operations |
| Operating Frequency | 60 times per hour |
All Siemens 3WT documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the installation options for the 3WT circuit breaker?
The breakers are available in both fixed and withdrawable (draw-out) installation types.
Does the electronic trip unit have a display?
Yes, all electronic trip units come standard with a Chinese LCD display.
What is the current range of the Siemens 3WT air circuit breaker?
The product line includes frame sizes ranging from 400A to 4000A.
Does the 3WT air circuit breaker support both fixed and withdrawable installation?
Yes, it is available in both fixed and withdrawable installation types.
What is the maximum current rating for this circuit breaker?
The 3WT circuit breaker is rated for up to 4000A (AC).
What is the maximum short-circuit rating for this breaker?
The device has a short-circuit rating of 66kA at 500VAC.