YFY1-C Series Surge Protector Device
YFY1 surge protector (hereinafter referred to as "protector ") is suitable for AC 50/60 Hz.420V and below TT, IT, TN-S, TN-C, TN-C-S and other power supply systems, to protect thepower grid due to lightning or surge overvoltage.
Specification Parameter
Specificationand model | Rated operating voltage | Maximum continuous operating voltage Uc(V) | Voltage protection level Up(kV) | Maximum discharge current lmax(kA) | Nominal discharge current In(kA) | Response time (ns) | Working environment(°C) |
| YFY1-D10 | 420V/440V 220V/385V | 420/480 | 1.5 | 10 | 5 | <25 | -40~+85°C |
| YFY1-D20 | 20 | 10 | |||||
| YFY1-C40 | 2 | 40 | 20 | ||||
| YFY1-B60 | 2.5 | 60 | 30 | ||||
| YFY1-B80 | 80 | 40 | |||||
| YFY1-100 | 100 | 60 | |||||
| YFY1-150 | 150 | 100 | |||||
| N-PE | / | 20/40 | <100 | ||||
| YFY1-1-15 | 230V/400V | 480 | 15 | 15/40 | <25 | ||
| YFY1-1-25 | 25 | 25/50 | <100 |
*N-PE module series parameters
| Code name | N-PE/20 | N-PE/40 |
| Voltage protection level(kV) | ≤2 | ≤2 |
| Nominal discharge current In(8/20μs)kA | 20 | 40 |
| Maximum allowable continuous flow under Uc conditions(A) | 20 | 30 |
| Response time(ns) | <100 | <100 |
| Width | 18 | 18 |
| Color | white | white |
Product Advantage
Surge protectors (also known as Surge Protective Devices, SPDs) are essential for safeguarding electronic equipment from transient overvoltage events, such as lightning strikes, power grid fluctuations, or electrical switching surges.
1. Primary Protection Functions
Voltage Clamping: Limits excess voltage by diverting surge currents to the ground, preventing damage to connected devices.
Energy Dissipation: Absorbs and dissipates surge energy (measured in joules) through components like Metal Oxide Varistors (MOVs) or Gas Discharge Tubes (GDTs).
Multi-Level Defense: Adopts tiered protection (e.g., Class I for primary distribution, Class II for secondary circuits) to handle surges of varying magnitudes.
2. Technical Strengths
Fast Response Time: Reacts within nanoseconds to clamp voltage spikes, outpacing potential damage to equipment.
High Current Handling: Withstands kA-level surge currents (e.g., 20 kA–100 kA) depending on the model, ensuring robust protection.
Low Residual Voltage: Minimizes the voltage passed to devices during a surge (typically <1.5 kV), reducing stress on sensitive components.
3. Enhanced Safety and Reliability
Fire Prevention: Prevents overheating or arcing caused by surges, lowering fire risks in buildings and industrial settings.
Equipment Longevity: Reduces wear from voltage fluctuations, extending the lifespan of servers, PLCs, and other critical systems.
Data Integrity: Shields storage devices (e.g., SSDs, HDDs) from corruption due to power irregularities, ensuring business continuity.
4. Application-Specific Benefits
Industrial Automation: Protects PLCs, DCS, and robotics from surges induced by motor startups or grid switching.
Telecommunications: Secures base stations, routers, and data centers against lightning-induced surges in remote areas.
Smart Buildings: Integrates with BMS (Building Management Systems) to safeguard lighting, HVAC, and security systems.
5. Advanced Features for Modern Systems
Remote Monitoring: Smart SPDs with IoT connectivity enable real-time status tracking and predictive maintenance alerts.
Thermal Fuse Protection: Disconnects the SPD from the circuit if overheating occurs, preventing secondary failures.
Modular Design: Allows easy replacement of individual protection modules, reducing downtime and costs.
Outline And Mounting Dimensions
