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FAMZ-3S-12
Fenarro
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When combined with control units produced by the company, it provides protection, control, measurement, and communication functions, making it the preferred equipment for achieving distribution network automation and system miniaturization.
35kV substations (10kV side switching applications)
10kV distribution lines in urban and rural power networks
Pole-mounted distribution switches for overhead networks
Smart grid automation systems requiring control, monitoring, and protection
Industrial and utility distribution systems demanding high reliability
Permanent Magnet Operating Mechanism – Ensures reliable performance and reduced mechanical wear.
Intelligent Functionality – Supports monitoring, measurement, protection, and communication.
Automation-Ready – Seamlessly integrates with distribution automation systems.
Compact and Lightweight – Pole-mounted design for easier installation and maintenance.
Stable Operation – Resistant to mechanical vibration, dust, salt spray, and environmental pollution.
Wide Environmental Adaptability – Operates in temperatures from -25℃ to +40℃, with high humidity tolerance.
Customizable Options – Can be tailored according to customer-specific technical requirements.
| Serial No. | Item | Unit | Numerical Value | |
|---|---|---|---|---|
| 1 | Rated Voltage | kV | 12 | |
| 2 | Rated Insulation Level | 1min Power Frequency Withstand Voltage (RMS Value) | kV | 42 |
| Lightning Impulse Withstand Voltage (Peak Value) | kV | 75 | ||
| 3 | Rated Frequency | Hz | 50 | |
| 4 | Rated Current | A | 630, 1250 | |
| 5 | Rated Short - circuit Breaking Current | kA | 20 | |
| 6 | Rated Short - circuit Making Current (Peak Value) | kA | 50 | |
| 7 | Rated Operating Sequence | - | O1t(0.3s)-COt2(3s)-COt2(3s)-CO- atresia | |
| 8 | Thermal Stability Current (4S) | kA | 20 | |
| 9 | Dynamic Stability Current (Peak Value) | kA | 50 | |
| 10 | Number of Rated Short - circuit Current Breaking Operations | times | 30 | |
| 11 | CT Ratio | - | 30~1250/1(5) | |
| 12 | Working Power Supply Voltage | V | -220(-110) | |
| 13 | Creepage Distance Ratio | - | ≥31 | |
| 14 | Mechanical Cycles | times | 10000 | |
| 15 | Weight | kg | 90 + 40 (Isolation) | |
Q1: What is the rated voltage of the FAMZ-3S-12 breaker?
A1: The breaker is designed for 12kV medium-voltage distribution systems.
Q2: Can this breaker be used in substations?
A2: Yes, it can be installed on the 10kV side of 35kV substations as well as in distribution lines.
Q3: Is the FAMZ-3S-12 breaker suitable for automation systems?
A3: Absolutely. It integrates protection, measurement, and communication functions, making it ideal for smart grids.
Q4: What environmental conditions can it withstand?
A4: It operates reliably at temperatures from -25℃ to +40℃, with humidity levels up to 95%, and altitudes up to 2000m.
Q5: Can the breaker be customized for special applications?
A5: Yes, customers can specify special requirements when ordering, and tailored solutions will be provided.
