TBS Type 2 - OBO BETTERMANN

TBS Type 2 surge arresters from OBO Bettermann are high-performance protective devices designed for safeguarding electrical installations against transient overvoltages caused by lightning strikes or switching operations. These Type 2 arresters, also known as surge protective devices (SPDs), are characterized by their robust construction, typically featuring a modular design with plug-in protection elements. Key technical specifications include a nominal discharge current (In) of 20 kA (8/20 µs) per pole, a maximum discharge current (Imax) of up to 40 kA, and a voltage protection level (Up) as low as 1.5 kV. They are available in configurations such as 1P, 2P, 3P, and 4P, with a rated voltage (Uc) of 275 V AC or 350 V AC, depending on the model. The devices incorporate thermal and dynamic disconnection mechanisms for safe end-of-life indication, and they comply with IEC 61643-11 and EN 61643-11 standards. The TBS series is known for its high energy absorption capacity and reliable performance in harsh environments.

These surge arresters are primarily installed in main distribution boards (MDBs) and sub-distribution boards (SDBs) within low-voltage power systems. They are essential in sectors such as industrial automation, commercial buildings, telecommunications, and renewable energy installations, including photovoltaic systems. Typical applications include protecting sensitive equipment like PLCs, variable frequency drives (VFDs), and control panels from voltage spikes. They are also used in building management systems (BMS) and data centers to ensure continuity of operations. The TBS Type 2 devices are suitable for TN, TT, and IT earthing systems, making them versatile for global installations.

The main subcategories within the TBS Type 2 range include the TBS 20, TBS 40, and TBS 60 series, each differentiated by their discharge capacity. Key article codes are structured as follows: TBS 20-275/4P (20 kA, 275 V, 4-pole), TBS 40-350/3P (40 kA, 350 V, 3-pole), and TBS 60-275/2P (60 kA, 275 V, 2-pole). The code format typically follows TBS [Imax]-[Uc]/[Poles], where Imax is the maximum discharge current in kA, Uc is the rated voltage, and Poles indicates the number of protected conductors. Additional variants include models with remote signaling contacts (e.g., TBS 20-275/4P FM) for integration into monitoring systems.

Partnering with Electric Automation Network ensures access to genuine OBO Bettermann TBS Type 2 surge arresters at competitive prices, with discounts up to 65% off list prices. Our engineering team provides personalized technical support for product selection and system design, including coordination with upstream Type 1 arresters. We offer express worldwide shipping, real-time pricing, and detailed technical documentation for each article. This combination of expertise and logistics minimizes downtime and ensures compliance with international surge protection standards.