



FX1-C40 Series AC Surge Protector
Key Features
- Type 2 surge protection device (Class II)
- 20kA nominal discharge current
- 40kA maximum discharge current
- IEC 61643-11 and EN 61643-11 compliant
- High energy MOV and GDT technology
- Pluggable design for easy maintenance
- Thermal protection with status indication
- Fast response time (< 25ns)
- Multi-pole configurations available
- DIN rail mounting for easy installation
The FX1-C40 Series AC Surge Protector is a Type 2 surge protection device designed to protect electrical installations from transient overvoltages and surge currents. With a nominal discharge current of 20kA and maximum discharge current of 40kA, this SPD provides robust protection for sub-distribution boards and sensitive electrical equipment. The device utilizes high-energy MOV (Metal Oxide Varistor) and GDT (Gas Discharge Tube) technologies to effectively suppress voltage surges from lightning strikes and switching transients. The pluggable design allows for quick and easy module replacement without disconnecting the wiring, ensuring minimal downtime during maintenance. Built-in thermal protection with clear status indication (Green for OK, Red for fault) provides immediate visual feedback on the device’s operational status. The FX1-C40 series is suitable for TN-S, TN-C, and other network systems, offering comprehensive protection for both single-phase and three-phase applications.
Product Overview
The FX1-C40 Series AC Surge Protector is designed to provide reliable protection against voltage surges and transient overvoltages in electrical distribution systems. As a Type 2 SPD (Surge Protection Device), it is specifically engineered for installation in sub-distribution boards to protect downstream equipment from the damaging effects of lightning strikes and switching surges. The device complies with IEC 61643-11 and EN 61643-11 standards, ensuring quality and reliability in various applications.
The pluggable modular design of the FX1-C40 series allows for easy installation and replacement, reducing maintenance time and costs. The thermal protection feature continuously monitors the MOV modules and automatically disconnects them in the event of thermal runaway, preventing fire hazards. Visual status indicators (Green for normal operation, Red for fault) provide immediate feedback on the device’s condition. With a fast response time of less than 25ns, the FX1-C40 provides rapid protection against even the fastest transient overvoltages.
Surge Ratings
| Parameter | Value |
|---|---|
| Standard | IEC 61643-11, EN 61643-11 |
| Type | Class II / Type 2 |
| Location of Use | Sub-Distribution Boards |
| Network Systems | TN-S, TN-C, TN-C-S |
| Nominal Discharge Current (In) | 20 kA (8/20 µs) |
| Maximum Discharge Current (Imax) | 40 kA (8/20 µs) |
| Voltage Protection Level (Up) | ≤ 1500 V |
| Response Time | < 25 ns |
| Protection Mode | L-N, N-PE, L-PE, L-PEN |
| Back-Up Fuse (max) | 125 A gL/gG |
| Protective Elements | High Energy MOV and GDT |
Voltage Ratings
Available Voltages
| System Voltage (Uo/Un) | Max Continuous Operating Voltage (Uc) | Voltage Protection Level (Up) |
|---|---|---|
| 120V | 150V | ≤ 650V |
| 230V | 275V / 320V | ≤ 1500V |
| 400V | 385V | ≤ 1500V |
| 440V | 440V | ≤ 1800V |
Technical Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | -40°C to +70°C |
| Permissible Humidity | RH 5%…95% |
| Mounting | 35 mm DIN Rail (EN 60715) |
| Degree of Protection | IP20 (built-in) |
| Housing Material | Thermoplastic (UL 94 V-0) |
| Conductor Cross Section (max) | 35 mm² (Solid, Stranded) / 25 mm² (Flexible) |
| Terminal Screw Torque | 4.5 Nm |
| Thermal Protection | Green (OK) / Red (Defect) indication |
| Remote Contacts (RC) | Optional |
| RC Switching Capacity | AC: 250V / 0.5 A |
| RC Conductor Cross Section | 1.5 mm² (Solid) |
| Number of Ports | 1 |
| Short-Circuit Current Rating | 25 kA / 50 kA |
Applications
Sub-Distribution Boards
Protection for electrical distribution panels and secondary distribution boards in commercial and industrial buildings
TN-S/TN-C Systems
Suitable for TN-S (separate neutral and earth) and TN-C (combined neutral and earth) network systems
Sensitive Equipment
Protection of computers, communication equipment, and other sensitive electronic devices
Commercial Buildings
Surge protection for offices, retail spaces, and commercial facilities
Quick Specifications
- Series: FX1-C40
- Type: Type 2 SPD
- In: 20 kA
- Imax: 40 kA
- Class: Class II / Type 2
- Voltage: 120V-440V
- Response Time: < 25ns
- Mounting: DIN Rail
Protection Modes
- • L-N (Line-Neutral)
- • N-PE (Neutral-Protective Earth)
- • L-PE (Line-Protective Earth)
- • L-PEN (Line-Combined)
Network Systems
- • TN-S System
- • TN-C System
- • TN-C-S System
Certifications
Low-voltage surge protective devices
European Standard
Secondary 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 UsCONTACT
+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.
