TVSS Surge Protection Device -BT 3L-WF MBC 150 1+1
TVSS Surge Protection Device BT 3L-WF MBC 150 1+1 (840842) is designed for installation at the LPZ 0A-2 boundary or higher, providing robust protection for low-voltage equipment against surge damage. It is a combined SPD Class I+II (Type 1+2 / Class B+C) device, suitable for single-phase power supply systems. This device complies with IEC 61643-11 and UL 1449 4th Edition standards, classified as a Type 4-1 combined SPD.
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Type
BT 3L-WF MBC 150 1+1
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Art.-No.
840842
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Features
1. Adopting plug-in PCB SPD class I+II single phase surge protection module.
2. Visual protection status indication, and failure indication function.
3. IP65 waterproof protection, suitable for outdoor application.
4. Built-in wiring terminal, easy for connection.
5. Total lightning impulse current up to 20kA 10/350 μs.
6. High discharge capacity,quick response.
Inquiry
Download Datasheet
Location of Use: Main Distribution Boards
System Type:
Single Phase
Single Phase
Modules:
1P+NPE
1P+NPE
Protection Elements:
High Energy MOV+ High Energy GDT
High Energy MOV+ High Energy GDT
High Surge Currents:
limp=8/20 kA (10/350μs), Imax=50/65kA(8/20μs)
limp=8/20 kA (10/350μs), Imax=50/65kA(8/20μs)
The TVSS surge protection device is designed to protect electrical systems and sensitive equipment from damaging voltage spikes caused by lightning, power grid switching, or other transient events. Suitable for residential, commercial, and industrial applications, it offers fast response time and high surge handling capacity. With features like thermal disconnection, LED status indicators, and remote signaling options, it ensures reliable, continuous protection. Compliant with international standards such as IEC 61643 and UL 1449, the TVSS device enhances safety, reduces maintenance costs, and prolongs equipment lifespan by mitigating surge-related risks. Ideal for critical power systems.
Features
1. High Surge Capacity – Capable of withstanding and diverting large transient voltages from lightning and switching events.2. Multi-Stage Protection – Combines various components (MOVs, gas discharge tubes, etc.) for layered defense.
3. Class I+II (Type 1+2) Protection – Suitable for both direct lightning strikes and secondary surges.
4. LED Status Indicators – Provides clear visual feedback on device status and protection function.
5. Remote Signaling Capability – Optional terminals allow integration with building monitoring or alarm systems.
6. Thermal Disconnector – Automatically isolates the device in case of overload or failure for added safety.
7. Modular Design – Allows for easy maintenance and quick module replacement without system shutdown.
8. Standards Compliance – Meets international surge protection standards such as IEC 61643 and UL 1449.
Advantages
1. Prevents Equipment Damage – Shields sensitive electronics and systems from harmful voltage transients and spikes.2. Increases System Uptime – Reduces unexpected shutdowns caused by surge events, improving operational reliability.
3. Lowers Maintenance Costs – Decreases the frequency of repairs and replacements due to surge-related failures.
4. Enhances Safety – Helps prevent electrical fires and system malfunctions caused by overvoltage conditions.
5. Prolongs Equipment Lifespan – Minimizes wear on electronic components, extending service life and performance.
6. Quick Response Time – Provides immediate protection against voltage transients with nanosecond-level response.
Applications
1. Electrical Distribution Panels – Installed at main and sub-panels to protect entire electrical systems from surges.2. Industrial Automation Systems – Safeguards PLCs, sensors, and motor controls from voltage transients.
3. Commercial Buildings – Protects lighting, HVAC, elevators, and communication systems.
4. Data Centers – Ensures continuous operation of servers and networking equipment by preventing surge-induced failures.
5. Telecommunications Networks – Protects switches, base stations, and routers from lightning and switching surges.
6. Renewable Energy Systems – Applied in solar and wind installations to protect inverters and controllers.
7. Hospitals and Healthcare Facilities – Secures sensitive medical equipment from harmful power disturbances.
8. Transportation Systems – Used in traffic control, railway signal systems, and airport infrastructure.
9. Residential Properties – Protects home electronics, appliances, and smart home systems from grid disturbances.
Installation
1. Determine Installation Location – Install the device close to the main or sub-distribution panel for optimal protection.2. Identify the System Type – Confirm if the system is single-phase, three-phase, TT, TN, or IT to select the appropriate TVSS model.
3. Follow Wiring Configuration – Connect the device according to the wiring diagram (e.g., L-N, N-PE, or L-L for 3-phase systems).
4. Use Short Cable Lengths – Keep connection wires as short and straight as possible to minimize impedance and ensure fast response.
5. Ensure Proper Grounding – Connect to a low-impedance grounding system; improper grounding reduces surge suppression effectiveness.
6. Mount Securely – Install in a dry, ventilated enclosure or panel with secure mounting to withstand environmental and electrical conditions.
7. Verify Indicators – Check LED or visual indicators to confirm operational status after installation.
8. Optional Remote Signaling – Connect remote signaling terminals to monitoring systems if supported.
9. Follow Safety Standards – Adhere to IEC, UL, and local electrical codes during installation.
Technical Data
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