LT-10C Type 3 Surge Protector 10kA for Distribution Boards
B Type 3 surge protector working at the equipment side of the installation, ensuring effective surge protection for outlets, panels, and delicate terminal devices Leitai Electric is a renowned manufacturer of surge protective devices in China, where SPDs are produced at our Wenzhou factory in Zhejiang and tested before shipment.
Applications & circuit protection
The LT-10C is used for terminal equipment, plug-in connections, measuring instruments, and sensitive electronic devices in distribution panels. It is often recommended for the following installation purposes.
- Key distribution boards: Primary protection of the incoming supply.
- Sub-distribution boards: Local surge protection for branches of the circuit.
- Manufacturing plants: Protection of motor control and automation systems.
- Commercial buildings: Protection of lighting, HVAC, and data systems.
Schematic Diagram
The above diagram shows the internal protection circuit and connection method of LT-10C surge protective device.
Construction & operating reliability
The LT-10C surge protector consists of high-energy metal oxide varistors (MOV) and gas discharge tubes (GDT) to provide effective clamping and correct isolation for the rest of the device. Each SPD is manufactured, tested and aged before being packed, with compiled test data kept in line with the order.
- Fast response and low leakage with MOV + GDT hybrid protection.
- A thermal disconnector that notifies when it fails.
- An IP20 rated enclosure is made of flame retardant plastics that comply with UL94 V0.
- The device is tested according to IEC 61643-11 / GB/T 18802.11.
Type 3 Surge Protector Technical Specification & Selection Guide
| Technical Data | Value |
|---|---|
| Uc | 385V |
| Un | 220V |
| Uoc | 10kA |
| Up | 1.5kV |
| ta | 100ns |
Type 3 Surge Protector for Sale: Factory Pricing & Sales Support
The factory price list details the quote for the LT-10C depending on the configuration and quantity required. Kindly reach out to our export department for a written quote with the available discounts for bulk distribution and project purchasers.
- Factory price list standard pricing
- Tailored configurations and bulk discounts as per orders
- Written statement as per your requirements
Type 3 Surge Protector Connection & Installation Basics
Connect the LT-10C SPD by wiring it in between the live conductors and the ground, taking care that the lead lengths are as short as feasible. Check polarity and terminal torque according to the datasheets, and safeguard the connections with the external disconnector that is recommended.
- Parallel connection with short leads to PE terminal
- Recommended external disconnector as per specifications
- Wiring diagrams enclosed in product documentation
Wiring Diagram
The diagram above shows how the LT-10C should be connected in an ordinary distribution board with L, N, and PE terminals identified in the proper manner.
Type 3 Surge Protector vs Other Options: Key Differences for Buyers
For various types of distribution boards, the Type 2 SPD will be enough, while in the case of installations needing the handling of direct lightning current at the entrance, the more advanced Type 1+2 or Type 1 versions can be used.
| Feature | This SPD | Alternative |
| Type | Type 3 (T3) SPD | Other SPD types available |
| Discharge capacity | Per specification / Per model | Matched to network duty |
| Protection level | 1.5kV | Lower Up options available |
| Application | Distribution Boards | Other installation types |
Export Markets & Country Compatibility
Devices produced by Leitai company based in China have been shipped all across Europe, the Middle East, Southeast Asia, Latin America, and Africa, modified according to local types of electricity and standards of certification.
SPD Dimensions, Weight & Packing
The LT-10C employs a standard modular design for DIN rail mounting. The total weight and overall dimensions will vary depending on the number of poles in use, and dimension drawings can be found in the datasheet.
- Compact profile for DIN rail mounting
- Protection of terminal strips during transport
- Dimension drawing available for model
Dimensional Drawing
The dimensional abstract shown above illustrates the load table of the LT-10 for further planning the installation on the DIN rail and the wires on the terminal panel.
Standards & certifications
The LT-10 surge protective unit has been manufactured according to IEC 61643-11 and GB/T 18802.11 standards. Type tests and routine tests reports could be available upon request.
- Design standard: IEC 61643-11/GB/T 18802.11.
- Certification: TUV, CE, CQC (by model).
- Marking of terminals and polarity followed the standard practices.
- Suitable to use with DIN rails in distribution boards.
OEM & B2B supply support
Our manufacturing division provides assistance for distributors, original equipment manufacturers as well as buyers of projects, regardless of whether it is just a single sample or a bulk order.
In cases where the structure of the LT-10C qualifies does not meet your requirements, send us information about the specifications, the capacity of discharge, the required voltage and quantity. Provide all the necessary information to our sales department.
- Samples available for product checking and assessments.
- Flexible amounts of products available for B2B orders.
- Project assistance for the suppliers via OEM and ODM.
- Custom branding, marking and packaging available.
- Supply of documentation and certificates is provided.
Frequently Asked Questions About Type 3 Surge Protector
Where is the LT-10C installed?
The LT-10C device is installed on a 35mm DIN rail either beside the terminal apparatus or at least in the immediate vicinity. The wiring scheme for the installation is mentioned in the accompanying product guide.
How does Type 3 protection differ from Type 2?
Type 2 protection system protects against surges at the point of distribution while Type 3 device provides superior protection in close proximity so that residual surges can be managed more effectively.
What is a Type 3 SPD used for?
Type 3 SPD device is used for the protection of all kinds of sensitive equipment like terminal devices, outlets and electronic appliances against the hazards of residual transients at the terminal end.
What is the Uoc rating of the LT-10C?
The Uoc rating of the LT-10C protection device has been specified in the corresponding technical specification document for suitable compliance with Type 3 protection standards as per IEC 61643-11.
Does the LT-10C need an external disconnector?
The LT-10C device possesses an inbuilt thermal disconnect feature so that it works effectively. If an additional protection systems are prescribed, then an external disconnector can be integrated along with it for optimal performance.
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