LT-15T T1+T2 PV Surge Protector 1000V 1500V DC Solar

LT-15T T1+T2 PV Surge Protector 1000V 1500V DC Solar

A solar surge protection device that safeguards photovoltaic strings, combiner boxes and inverter inputs against voltage surges due to lightning and power grid disturbances. Leitai Electric is a factory direct SPD manufacturer and provides solar protection devices with competitive factory prices for the sun power protective appliances, along with customized configurations and the necessary technical documents.

Applications & circuit protection

The LT-15T is used for solar power arrays, inverters, and DC systems for PV systems to provide protection against lightning strokes. It is now commonly ordered for the following locations where its application is useful.

• Solar farms: Protection of strings and junction box.
• Roof-mounted systems: Protection of inverters on the DC side.
• Hybrid systems: Lightning protection of batteries and DC bus.
• Commercial solar: Surge protection at 1000-1500V DC into inverter inputs.

Schematic Diagram

The layout of the structure shown in the figure describes the internal protection system and connection methods of the surge protective device LT-15T.

Construction & operating reliability

The LT-15T has a high-energy MOV part and comes equipped with a thermal disconnection part. The LT-15T surge protection device was assembled, went through aging processes, and was tested for impulse before being packed, and all tests being documented for traceability purposes.

• High-energy MOVs to ensure rapidity of response.
• Thermal disconnector with a signal indicator.
• IP20 enclosure and flame-retardant housing.

T1+T2 PV Surge Protector Technical Specification & Selection Guide

Where to Buy T1+T2 PV Surge Protector at Factory Sales Prices

The LT-15T price is taken from our factory price list according to the order placed. Our export team will provide you with a written price quote with minimum volume for distributors and project purchasers.

• Standard rates quoted from the factory price list
• Customized configurations and volume pricing quote per request
• Written quotation based on your needs.

T1+T2 PV Surge Protector Wiring, Installation & Connection Guide

Install the LT-15T SPD using the shortest possible lead length between the power conductors and the earth. Check the polarity and torque of the terminals according to the product datasheet, and shield the joint with the external disconnection unit according to the specifications provided.

• Connection in parallel form with short leads for the connection to the PE terminal
• Disconnection device is recommended according to the guidelines
• Wiring diagram is provided by the manufacturer along with the product documentation

Wiring Diagram

The illustration of the circuit configuration depicted above indicates normal lightning protection wiring for LT-15T in usual distribution panel with terminals L, N and PE marked according to official practice.

T1+T2 PV Surge Protector vs Other Options: Key Differences for Buyers

Identify SPD products according to the type, lightning discharge capacity and voltage rating. Class 3 SPD gadgets are enforced for protecting terminal equipment, Class 2 instrument for distribution equipment protection, and the Class 1 units discharges lightning current.

Export Markets & Country Compatibility

Our SPDS are shipped throughout the world to distribution partners depending on their power requirement, earthing system and specifications applicable to a given market.

SPD Dimensions, Weight & Packing

The LT-15T comes with a common modular casing characterized by DIN rail mounting and a 35mm size. The weight and overall size differ with pole design. Dimension drawing serves as the technical specification for the product.

• Compact panel mount configuration using DIN rail
• Terminals protected during transport issue
• Technical specification provided

Dimensional Drawing

The illustration above depicts the dimensional dimensions and footprint of the LT-15T regarding its DIN Rail installation and panel design.

Standards & certifications

The LT-15T surge protection device is compliant with the IEC 61643-31 and GB/T 18802.31 Standards in respect of photovoltaic systems. Type-testing and routine-testing documentation could be issued according to the project scope and target market needs.

• Compliance standard: IEC 61643-31 / GB/T 18802.31 (KPV).
• Certifications: CE (by the model).
• Terminal and polarity marking comply with the standards.
• Designed for DIN rail installation in switchgear cabinets.

OEM & B2B supply support

OEM, wholesale and distribution options for surge protection devices is available; there is also a possibility of ad hoc branding and packaging.

If the LT-15T type does not meet your specifications, let us know the type, voltage, discharge capacity, and quantity of SPDs required. You can contact our export sales team for further information and quotations based on your specifications, including lead time.

• Sample units for product evaluation.
• Buy quantities suitable for the project and business-to-business purchasing.
• Support for OEM and ODM products.
• Options for branding and packaging.
• Technical documentation available.

Request a Quote

Frequently Asked Questions About T1+T2 PV Surge Protector

What is a PV SPD?

A PV SPD is used for protecting the DC part of the solar power installation, constraining the direct and transient surge prior to causing harm to inverters and modules.

Where is the LT-15T installed?

On the DC side between the solar array (combiner box) and input of the inverter, fixed on the DIN profile in a casing.

Is it tested to PV standards?

Yes, PV SPDs are checked for compliance with IEC 61643-31 / GB/T 18802.31 standard for DC surge protection.

Can I order samples for testing?

Yes. Samples and wholesale prices are offered specifically for B2B clients.

Does the LT-15T include monitoring?

Remote signal versions are available by configuration, with a dry contact for alarm indication.