Key facts
- Brand
- Changshu Switchgear
- Model
- CW2 series
- Category
- Other
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH
- Last added
- 2026-10-06
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Changshu Switchgear CW2 Series Intelligent Universal Circuit Breaker Product Manual
The CW2 series intelligent universal circuit breakers are designed for 50 Hz/60 Hz AC distribution networks with rated voltages of 400 V or 690 V and rated currents up to 6300 A. They offer high‑breaking capacity, zero‑arc operation, isolation functions and a range of intelligent controllers for enhanced protection and monitoring.
The document includes a detailed table of contents covering type definitions, structural synopsis, main technical indices, wiring diagrams, mounting dimensions, communication options (Modbus‑RTU, Profibus, DeviceNet, CAN, Ethernet) and ordering information, making it a comprehensive guide for engineers and installers. This manual is written in Chinese.
Changshu Switchgear CW2 series specifications
| Rated ultimate short‑circuit breaking capacity (Icu) | 400 V: 50‑120 kA; 690 V: 40‑85 kA; 1000 V: 36‑50 kA |
|---|---|
| Rated operating short‑circuit breaking capacity (Ics) | 400 V: 50‑120 kA; 690 V: 25‑85 kA; 1000 V: 36‑50 kA |
| Rated short‑time withstand current (Icw, 0.5 s) | 400 V: 42‑100 kA; 690 V: 25‑85 kA; 1000 V: 36‑50 kA |
| Rated working voltage | 400 V, 690 V, AC 1000 V |
| Rated current | Up to 6300 A |
Source: Changshu Switchgear CW2 Series Intelligent Universal Circuit Breaker User Manual
All Changshu Switchgear CW2 series documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What communication protocols does the CW2 series support?
The CW2 series supports Modbus‑RTU, Profibus, DeviceNet, CAN bus and Ethernet via the CN1DP and CN1EG adapters.
From: Changshu Switchgear CW2 Series Intelligent Universal Circuit Breaker User Manual
What functions does the under‑voltage release module provide?
It provides instantaneous or timed under‑voltage release with adjustable delay times from 0.5 s to 10 s, used for PV grid‑connected applications.
From: Changshu Switchgear CW2 Series Intelligent Universal Circuit Breaker User Manual
What are the rated working voltages of the CW2 series?
The CW2 series is rated for 400 V or 690 V AC.
From: Changshu Switchgear CW2 Series Intelligent Universal Circuit Breaker Product Manual
What is the maximum rated current for these breakers?
They are rated for up to 6300 A, or lower currents as required.
From: Changshu Switchgear CW2 Series Intelligent Universal Circuit Breaker Product Manual