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The FXB2 series hydraulic magnetic circuit breaker represents advanced circuit protection technology with hydraulic magnetic trip mechanism. Unlike thermal-magnetic breakers, hydraulic magnetic breakers are not affected by ambient temperature, providing consistent and reliable performance across varying environmental conditions. Supporting rated currents from 0.5A to 400A and voltages up to 1000V DC and 480V AC, this series offers versatile protection for photovoltaic systems, energy storage applications, telecom equipment, and industrial DC power distribution. The hydraulic magnetic technology ensures precise trip characteristics with multiple time delay options (short, medium, long) and high inrush protection for motor applications. Available in 1 to 4 pole configurations with optional auxiliary switches and shunt trip accessories, the FXB2 series provides flexible solutions for demanding protection requirements.
FXB2 Series Hydraulic Magnetic Circuit Breaker
Key Advantages
- Hydraulic magnetic trip technology: Temperature-independent operation ensures consistent performance from -40°C to +85°C
- Wide current range: 0.5A to 400A covering various application requirements
- High voltage support: Up to 1000V DC and 480V AC for diverse applications
- Multiple time delay characteristics: Short (D3/A3/AD3), medium (D4/A4/AD4), and long (D5/A5/AD5) delays available
- High inrush protection: H3/H4/H5 options for motor and transformer applications
- Parallel/series configurations: Support parallel connection for high current and series for high voltage
- High breaking capacity: Up to 22kA interrupting rating (UL Listed)
- Multiple pole options: 1, 2, 3, and 4 pole configurations with guard options
- Optional accessories: Auxiliary switch (S) and shunt trip (T) available
- Compact design: Lightweight construction (118g per pole) for easy installation
- Wide operating temperature: -40°C to +85°C for harsh environments
- Multiple certifications: UL 489 Listed, CE, CCC, IEC 60947-2, GB 14048.2 compliant
Basic Specifications
| Parameter | Specification | Details |
|---|---|---|
| Product Series | FXB2 | Hydraulic Magnetic Circuit Breaker |
| Pole Configurations | 1P, 2P, 3P, 4P | Available with guard options (2G, 3G, 4G) |
| Rated Current | 0.5A ~ 400A | Wide range covering various applications |
| AC Voltage | 120V, 240V, 277V, 400V, 277/480V | AC 50/60Hz |
| DC Voltage | 80V, 125V, 250V, 500V, 750V, 1000V | Support series connection for high voltage |
| Breaking Capacity (UL) | 10kA – 22kA | Depending on voltage and configuration |
| Breaking Capacity (IEC) | Ics: 6-10kA, Icu: 6-10kA | IEC 60947-2 standard |
| Protection Degree | IP 20 | Finger-safe protection |
| Operating Temperature | -40°C to +85°C | Wide temperature range |
| Storage Temperature | -40°C to +75°C | With derating above +40°C |
| Mounting | 35mm DIN rail | Standard DIN rail mounting |
| Wire Range | 1 to 50mm² | #16 to 1/0 AWG |
| Altitude | ≤2000m (6561ft) | Requires derating above 2000m |
Time Delay Characteristics
The FXB2 series offers multiple time delay characteristics to suit various applications:
AC Time Delays:
- A3 (Short Delay): Fast trip for sensitive equipment
- A4 (Medium Delay): Standard protection for general applications
- A5 (Long Delay): Slow trip for equipment with high inrush current
- H3/H4/H5 (High Inrush): Designed for motor and transformer applications with high starting currents
DC Time Delays:
- D3 (Short Delay): Fast DC protection
- D4 (Medium Delay): Standard DC protection
- D5 (Long Delay): Slow DC protection for capacitive loads
- AD3/AD4/AD5: Universal delays for both DC and AC applications
Accessories
SPDT, 10A @ 250VAC
Remote trip control
Multiple connection
High voltage/current
Applications
- ☀️ Photovoltaic Systems
- 🔋 Energy Storage Systems
- 📡 Telecom Equipment
- 🏭 Industrial DC Power
- 🚂 Transportation
- ⚡ UPS Systems
- 🎮 Marine Applications
- 🔧 General DC Protection
Contact Information
Hangzhou Weltrus New Energy Technology Co., Ltd.
Block D, Ocean International Center
333 Yuanjian Street, Hangzhou
Zhejiang, China
Tel/WhatsApp: +86 13735502672
Email: [email protected]
Contact UsTechnical Features
- ✔ Temperature independent operation
- ✔ High mechanical life: 10,000 operations
- ✔ High electrical life: 6,000 operations
- ✔ Insulation resistance: ≥100MΩ @ 500V
- ✔ Dielectric strength: 1500V AC / 1 min
- ✔ Terminal torque: 3.5Nm (IEC)
- ✔ Relative humidity: ≤95%
CONTACT
+86-13735502672
Adhering to the development philosophy of market-oriented, customer-centric, and supply based, we continuously promote technological innovation and product upgrades, and provide global users with higher quality, efficient, and environmentally friendly clean energy solutions.