FX1-C40 Series AC Surge Protector | WELTRUS
FX1-C40 Series AC Surge Protector
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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
IEC 61643-11
EN 61643-11
Class II / Type 2

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

120V
Single-Phase 120V
230V
Single-Phase 230V
277V
Single-Phase 277V
400V
Three-Phase 400V
440V
Three-Phase 440V
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

IEC 61643-11

Low-voltage surge protective devices

EN 61643-11

European Standard

Class II / Type 2

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]

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