Description
OBO V25-B+C1+NPE/280V – Combination Lightning and Surge Arrester
Product Overview
The OBO V25-B+C1+NPE/280V is a high-performance Type 1+2 combination lightning current and surge arrester designed to protect low-voltage electrical installations against transient overvoltages caused by lightning strikes and switching events.
This OBO Bettermann surge protection device combines lightning current discharge and surge voltage protection in a compact DIN-rail-mounted solution. The device is designed for single-phase power protection and incorporates an N-PE protection path, making it suitable for electrical installations requiring comprehensive protection between line, neutral, and protective earth.
The V25-B+C1+NPE/280V has a 25 kA lightning impulse current rating (10/350 μs), a 230 V AC nominal voltage, and a 280 V maximum continuous operating voltage. It provides a voltage protection level of up to 0.9 kV according to the available product specifications.
Key Features
- Manufacturer: OBO Bettermann
- Product: V25-B+C1+NPE/280V
- Product Number: 5094457
- Type: Combination Lightning Current and Surge Arrester
- Protection Class: Type 1 + Type 2
- Configuration: 1-pole + NPE
- Nominal AC Voltage: 230 V
- Maximum Continuous Operating Voltage: 280 V AC
- Lightning Impulse Current: 25 kA (10/350 μs)
- Voltage Protection Level: 0.9 kV
- Mounting: 35 mm DIN rail
- Protection Rating: IP20
- Visual Status Indication: Yes
- Remote Signaling: No
- Width: 3 DIN modules (3 TE)
Type 1 + Type 2 Surge Protection
The V25-B+C1+NPE/280V is designed as a combined Type 1+2 surge protection device, allowing it to address both high-energy lightning currents and downstream transient overvoltages.
Type 1 protection is particularly important for installations exposed to lightning currents, while Type 2 protection provides additional protection against induced and switching-related overvoltages within the electrical installation. The OBO V25 series is documented as a combination arrester for lightning and surge protection according to DIN EN 61643-11.
High Lightning Current Discharge Capacity
The device provides a 25 kA lightning impulse current capability with a 10/350 μs waveform, making it suitable for applications where protection against high-energy lightning impulses is required.
This makes the V25-B+C1+NPE/280V suitable for use at the incoming side of electrical installations and other locations where lightning-induced transient energy needs to be diverted safely toward the grounding system.
N-PE Protection
The +NPE configuration provides a dedicated neutral-to-protective-earth protection section.
This configuration is particularly useful in power distribution systems where protection of the neutral and PE path is required as part of the overall surge protection concept.
The V25-B+C1+NPE version is designed as a 1-pole + NPE combination arrester, providing compact protection for single-phase installations.
Low Voltage Protection Level
The V25-B+C1+NPE/280V features a specified voltage protection level of 0.9 kV, helping limit transient overvoltage reaching downstream electrical equipment.
This makes the device suitable for protecting sensitive electrical and electronic equipment installed downstream of the main distribution point.
DIN Rail Installation
The OBO V25-B+C1+NPE/280V is designed for straightforward installation on a standard 35 mm DIN rail.
Its compact 3 TE / 3 DIN-module width allows the surge protection device to be integrated into electrical distribution boards while conserving valuable panel space.
Visual Status Indication
The device incorporates an optical status indicator, allowing installers and maintenance personnel to visually check the operating condition of the surge protection device.
This provides a simple way to identify the operational status during routine inspection and maintenance.
Robust Electrical Protection
The V25-B+C1+NPE/280V is designed for use in electrical distribution systems where transient overvoltage protection is required. Its combination of lightning current and surge protection allows one compact device to provide protection against different types of transient electrical disturbances.
The device is rated for 230 V AC nominal operation with a 280 V AC maximum continuous operating voltage.
