Ac SPD 40ka 60ka 220v 240V 275V 320V Ac Lightning Arrester Whole House Electrical Equipment 385v Surge Protector Industrial
Features
High lightning current discharge capability
Excellent voltage protection level
High reliability and safety
Thermal trip protection
Remote alarm function: Can be equipped with normally open/normally closed dry contacts for remote monitoring and real-time alarm.
Protection module operating status (normal/failure)
Visual status indication
Modular design
Wide temperature adaptability and high stability
Product Description
The 385V AC surge protector is a transient overvoltage protection device specifically designed for three-phase four-wire or three-phase five-wire AC power distribution systems with a rated operating voltage of 380V/400V. Its core nominal voltage "385V" refers to its maximum continuous operating voltage, ensuring long-term stable operation in low-voltage power grids.
Technical Parameters
Electrical Parameters
Model
CYD1-C40
SPD Type
Type 2
Technology
MOV (Metal Oxide Varistors)
Max. continuous operating voltage [Ucpv]
385Vac
Nominal discharge curent(8/20us) [ln]
20kA
Max.discharge current (8/20us) [lmax]
40KA
Voltage Protection level [Up]
≤1.8kV
Short-circuit current rating [Isccr]
25kA
Response time [tA]
≤25ns
Thermal Disconnection Device
Insertion
Max. Backup Fuse
63A gPV FUSE
Mechanical Data
SPD configuration
AC system
Plugable
Available
Mounting
35mm DIN rail
Enclosure Material
Thermoplastic, conform to UL94 V-0
Operating Temperature Range
-40°C...-80°C
Protection rating
IP20
Normal/fault Display
Green / Red
Remote Signal
Optional
Wiring for remote signaling
Max.1.5mm solid/flexible
Max.Voltage / Current for remote signaling
250V/0.1A;125V/0.2A;75V/0.5A
Certificate
CQC, CE, IEC, ISO9001
Product Introduction
Surge protectors are typically installed in the main distribution cabinets or sub-distribution cabinets of buildings or industrial equipment as the first or second level of surge protection. They are designed to discharge simulated lightning impulse currents of 10/350µs or 8/20µs generated by direct lightning strikes, induced lightning strikes, or internal power grid operations, clamping overvoltages below a safe level that the electrical equipment can withstand, thereby protecting the entire power distribution system and critical downstream loads from damage.
Application Scenarios
Industrial Manufacturing
Factory main power distribution room, production line control cabinets, large motor (such as pumps, fans) drive systems.
Infrastructure
Power distribution systems for sewage treatment plants, water supply pumping stations, airports, train stations, and subway stations.
New Energy Sector
AC combiner boxes and inverter output terminals for photovoltaic power plants; converter systems for wind turbines.
Commercial Buildings
Main power distribution rooms and floor-level power distribution rooms for large office buildings, shopping malls, and hotels.
Data Centers
Main input power distribution cabinets in computer rooms, providing primary power protection for servers and switches.
Public Facilities
Power distribution centers for important public buildings such as hospitals, schools, and stadiums.
Frequently Asked Questions
Q1 Do you offer samples?
We can provide free samples to customers, but only one piece, and customers need to bear the freight cost.
Q2 Can you customize products according to our requirements?
Of course, we can customize products according to customer requirements and provide corresponding design solutions. Customization is available from low MOQ with free sample adaptation.
Q3 When can I receive your quotation and detail information after sending an enquiry?
All your enquiries will be replied within 24 hours with details and pricing.
Q4 How long is the warranty period for your products?
We offer a two-year warranty for our customers.
Q5 What payment methods do you accept?
We accept T/T, PayPal, Western Union, L/C, and Trade Assurance.
Q6 How is the delivery handled for urgent orders?
Delivery time depends on the order volume. Generally, it takes 3 - 40 days: less than 300 pieces within 5 days, 300 - 2000 pieces within 7 - 15 days, and 2000 - 20000 pieces within 15 - 40 days.