LT-X Series Type 1 Surge Protector 50kA Iimp Lightning

LT-X Series Type 1 Surge Protector 50kA Iimp Lightning

Type 1 lightning arresters are designed for the fundamental phase of protection required at the entry points of buildings with outdoor lightning protection systems. Leitai Electric is based in China and produces SPDs of in-house production, testing, and quality control of Type 1, Type 2, and Type 3 SPDs.

Applications & circuit protection

The LT-X15 / X30 / X50 is used in places where Type 1 lightning current arresters with Iimp 15/30/50kA are needed for service entrances and building with LPS. Major application of this protection is given below.

• Service entrances: Lightning impulse (10/350us).
• LPS buildings: Lightning protection systems.
• Power distribution system: first stage with Type 1 protection.
• Telecommunication centers: Telecom facilities.

Schematic Diagram

The schematic presented above describes the internal protective circuitry and connection modes for a surge protection device, LT-X15 / X30 / X50.

Construction & operating reliability

The advanced development and use of graphite spark-gap components and durable enclosures in the LT-X15 and LT-X30 allow for high reliability and long life lightning current discharge operation. The SPD has to undergo assembly, aging, and impulse tests before packaging, with records of all tests kept for each order.

• Direct lightning current handling using the graphite spark-gap block.
• Reliable impulse discharge ensured by the arc extinguishing device.
• Housing rated IP20, flame resistant UL94 V0.
• Compliance with IEC 61643-11 / GB/T 18802.11 standards.

Type 1 Surge Protector Specifications & Technical Data

Where to Buy Type 1 Surge Protector at Factory Sales Prices

Pricing for LT-X15 / X30 / X50 is determined based on your specifications, type, discharge capacity, voltage and quantity ordered. Factory-direct pricing is available on wholesale, OEM and project orders.

• Standard price list from the manufacturer
• Custom configurations and pricing depending on the order
• Written cost of your order

Type 1 Surge Protector Connection & Installation Basics

The LT-X15/X30/X50 SPD must be connected between phase conductors and earthing system by means of shortest reasonable leads. Verify the polarity and terminal torque according to the datasheet. Connections shall be protected by the recommended external disconnector.

• Connection in parallel with short leads to PE terminal.
• External disconnector must be used.
• Wiring diagram is included in product documentation.

Wiring Diagram

Above is the connectivity diagram which represents the preferred connection of the LT-X15 / X30 / X50 in a standard distribution boards along with reference markings of L, N and PE terminals as per standard norms.

Type 1 Surge Protector vs Other Options: Key Differences for Buyers

When selecting a suitable SPD, one should consider its protection level (Up), discharge capacity (In/Imax or Iimp) and applicable standards. Our specialists can advise you about the right configuration for your network.

Export Markets & Country Compatibility

Our SPDs are supplied to partners all over the world according to transportation voltage and earthing system and standard norms of the country of supply.

SPD Dimensions, Weight & Packing

The dimensions are determined by the poles and the type. The LT-X15 / X30 / X50 has a compact profile of the DIN rail for the panel installation with terminals safe during transport. Dimension drawings are provided with the technical documentation.

• Compact profile of the DIN rail for panel installation
• Safe terminals during transportation
• Dimension drawings are provided per model

Dimensional Drawing

As shown in the above image, the mounting footprint of the LT-X15 / X30 / X50 will help you in planning installation on your DIN rail and panel layout.

Standards & certifications

The surge protection device LT-X15 / X30 / X50 is manufactured in compliance with the requirements of IEC 61643-11 / GB/T 18802.11. Type and routine-test reports may be delivered based on the needs of the project and the customer.

• Standard: IEC 61643-11 / GB/T 18802.11
• Certification: CE available for all models
• Markings of terminals and polarity according to established practices
• Manufactured for installation on DIN rails in distribution boards.

OEM & B2B supply support

Leitai offers OEM/ODM services, as well as wholesale and distribution to suppliers of surge surge protection devices from their factory based in China.

If the LT-X15 / X30 / X50 configuration is unsuitable, please communicate your specifications to our sales department, including type, discharge capacity, voltage and quantity.

• Samples available for product assessment.
• Flexible quantities possible for project or B2B order.
• OEM and ODM available for projects where applicable.
• Custom branding and packaging.
• Technical documentation and certification also included.

Request a Quote

Type 1 Surge Protector FAQs: Common Buyer Questions Answered

Where is the LT-X15 / X30 / X50 installed?

In general, it is the location of the distribution equipment, from the main distribution up to the direct point of supply connection.

Can I get a quotation for a project?

Yes please, provide the Iimp, Uc, number of poles and number of units to receive the official price quote.

What is a Type 1 SPD for?

The Type 1 SPD protects the electrical equipment from direct lightning strikes (10/350us) and should be installed at the service entrance for the buildings equipped with external lightning protection systems.

Does it also provide surge protection?

The Type 1 SPDs also limit the surge overvoltage. In fact, the Type 1+2 SPDs unit supports both Type 1 SPD function and nominal discharge current capability.

What is Iimp?

Iimp is the impulse current (10/350us) which a SPD is able to discharge, for example, such value exceeds 25 kA per pole for the LT-X15 / X30 / X50.