SPD T1+T1 Type 1 and Type 2 AC Surge Protection Device
This Class B+C Class I+II surge protection device with 5kA rating and 3+NPE 320V configuration provides comprehensive protection against lightning-induced voltage surges for industrial and commercial applications.
Product Overview
- Compliant with GB/T18802.1 and IEC/EN 61643-11 standards
- Rated voltage: 275V~, 320V~
- Maximum discharge current: 50kA
- High Energy Varistor technology for effective lightning protection
- Modular design for easy installation in LV switchboards
- End-of-life indicators for maintenance monitoring
- Protects electrical installations from lightning strikes by discharging surge currents
Technical Specifications
| SPD classification (EN 61643-11) |
Type 1 + Type 2 |
| SPD classification (IEC 61643-11) |
Class I + Class II |
| Max. continuous operating voltage (Uc) |
320V |
| Lightning impulse current (10/350μs) Iimp |
5kA |
| Nominal discharge current (8/20μs) (L-N / N-PE) |
20kA / 40kA |
| Max. discharge current (8/20μs) (L-N / N-PE) |
50kA / 70kA |
| Voltage protection level (L-N / N-PE) Up |
≤1.3kV / ≤1.5kV |
| Voltage protection level 5kA (L-N / N-PE) |
≤1.0kV / ≤1.5kV |
| Response time (L-N / N-PE) tA |
≤25ns / ≤100ns |
| Operating temperature range |
-40℃ to +80℃ |
| Operating state / fault indication |
Green / Red |
| Cross-section area (Min./Max.) |
4mm² / 35mm² |
| For mounting on |
35mm Din rail |
| Protection degree |
IP20 |
| Enclosure material |
Thermoplastic UL94-V0 |
Dimensions
Working Principle
Under normal operating conditions, the SPD maintains a high-impedance state that doesn't affect system performance. When transient voltages occur, the SPD transitions to a low-impedance state, diverting surge currents to ground or back to the source. This clamping action limits voltage to safe levels. After the transient event passes, the SPD automatically resets to its high-impedance state.
Why Install Surge Protection?
Lightning strikes occur daily worldwide, posing risks to any structure in their path. Though lasting only microseconds, lightning generates dangerous voltage surges capable of destroying electronic equipment. Installing surge protection devices significantly reduces or prevents damage to valuable electrical systems and devices.
Packaging & Delivery
| Inner Packing |
White box |
| Outer Packing |
Brown cartons |
| Shipping Port |
Ningbo / Shanghai |
| Shipping Method |
Sea shipment / Air shipment / Express |
Payment Methods
Company Profile
Wenzhou Britec Electric Co., Ltd., founded in 2003, is a specialized surge protection device manufacturer located in Yueqing, Zhejiang, China. With over 21 years of experience in low voltage surge arrester development and design, Britec products are widely utilized in electric power, communication, construction, and various industrial sectors, earning recognition from international customers.
Certifications
Frequently Asked Questions
Q1. Are you a trading company or manufacturer?
A1. We are a manufacturer.
Q2. Where is your factory located?
A2. Our factory is located in Yueqing City, Zhejiang, China.
Q3. Do you have any certificates?
A3. Yes, we hold TUV, CB, CE and other relevant certifications.
Q4. Can you produce products according to customers' design?
A4. Yes, OEM services are welcome. We can manufacture any type of SPD according to your design specifications.
Q5. How do we make a quick response to customer?
A5. Our professional team responds promptly via online chat, email, WhatsApp, and other communication channels.
