Type 1 + 2 three-phase surge protection device for electrical panels

TOPBAS Type 1 + 2 Surge Protection Device (TB7K320T12L)

The TOPBAS TB7K320T12L is a Type 1 + 2 (Class B + C) three-phase surge protection device, 3 pole + N, that protects electrical panels and sensitive equipment from partial lightning currents and induced surges in a single unit.

Technical Specifications

TOPBAS Type 1 + 2 Surge Protection Device (TB7K320T12L)

ModelTB7K320T12L
Protection TypeType 1 + 2 (Class B + C)
PhaseThree Phase
Rated Voltage (Uc)320 VAC
Voltage Protection Level (Up)1.6 kV
Impulse Current (Iimp)7 kA
Nominal Discharge Current (In)30 kA
IP RatingIP20
Poles Number3 Pole + N

Consult a qualified engineer for project-specific design decisions.

Typical applications

  • Main incoming electrical panels
  • Industrial and commercial installations
  • Buildings with external lightning protection
  • Sensitive equipment and data systems

Supply & installation

Henel Engineers supplies this product and installs it as part of a complete lightning protection and earthing system across India — from site assessment and design to installation.

Surge Protection Devices (SPD) — Supply & Installation

TOPBAS Type 1 + 2 Surge Protection Device (TB7K320T12L) — FAQs

What type of SPD is the TB7K320T12L?

It is a Type 1 + 2 (Class B + C) three-phase surge protection device with 3 pole + N configuration.

What are the ratings of the TB7K320T12L?

Rated voltage (Uc) 320 VAC, voltage protection level (Up) 1.6 kV, impulse current (Iimp) 7 kA, nominal discharge current (In) 30 kA, IP20.

Where is a Type 1 + 2 SPD installed?

A Type 1 + 2 SPD is typically installed at the main incoming electrical panel, especially in buildings with external lightning protection.

How do I buy this SPD?

Call +91 94432 82312 or +91 94436 92711, chat on WhatsApp at +91 94432 82312, email henelkkla@gmail.com, or use the quote request form on the contact page.

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