$ 76.13
Protect AC power systems with Weidmueller VPU AC II 1+1 R 300/50. Type II surge protection with remote signaling for reliable industrial operation.
The Weidmueller VPU AC II 1+1 R 300/50 Type II surge protection device with remote signaling is designed to protect low-voltage AC power systems from transient overvoltages caused by lightning effects and switching surges. Suitable for single-phase TN, TT, and IT networks, it provides coordinated protection between line and neutral paths while maintaining system stability. The compact DIN-rail design integrates easily into distribution boards, while the built-in remote signaling contact allows continuous status monitoring. This makes it an ideal solution for industrial and commercial installations where electrical reliability and operational continuity are essential.
The Weidmueller VPU AC II 1+1 R 300/50 Type II surge protection device with remote signaling helps reduce equipment failures by rapidly diverting surge energy away from sensitive electronics. Its controlled protection level limits stress on downstream components such as controllers, power supplies, and automation systems. The clear visual status indicator combined with a remote alarm contact supports preventive maintenance, enabling timely replacement before protection is lost. With high discharge capability and stable performance across wide temperature ranges, it is well suited for factories, infrastructure facilities, and building power distribution systems where uptime and safety are critical.
Why Weidmueller VPU AC II 1+1 R 300/50?
The Weidmueller VPU AC II 1+1 R 300/50 stands out by combining strong surge-handling capability with intelligent monitoring in a compact form factor. Its coordinated 1+1 protection design shields both line and neutral paths, while the remote signaling contact provides early warning before protection is lost. This balance of performance, visibility, and easy panel integration makes it a dependable choice for engineers who prioritize uptime, safety, and long-term system resilience.
What problem does it solve?
The Weidmueller VPU AC II 1+1 R 300/50 addresses the hidden risk of transient overvoltages that can silently degrade or instantly damage sensitive electrical and automation equipment. By safely diverting surge energy away from critical components, it prevents unexpected shutdowns, data loss, and costly repairs. At the same time, its clear status indication helps maintenance teams detect failures early, avoiding unprotected operation and ensuring continuous electrical reliability.
| Feature | Details | Benefit |
|---|---|---|
| Surge Protection Type | Type II / Type III coordinated SPD | Protects equipment from both switching surges and residual lightning effects |
| Protection Configuration | 1+1 circuit (L-PE and N-PE) | Ensures comprehensive protection for line and neutral paths |
| Rated System Voltage | 230 V AC (single-phase) | Compatible with standard low-voltage power distribution systems |
| Maximum Continuous Operating Voltage (Uc) | 300 V (L-PE), 305 V (N-PE) | Maintains stable protection without nuisance tripping |
| Nominal Discharge Current (In) | Up to 40 kA (N-PE), 20 kA (L-PE) | Safely dissipates high-energy surge currents |
| Maximum Discharge Current (Imax) | Up to 65 kA (N-PE), 50 kA (L-PE) | Handles severe transient events with high reliability |
| Protection Level (Up) | ≤ 1.5 kV | Reduces electrical stress on sensitive downstream devices |
| Response Time | ≤ 25 ns | Provides rapid surge diversion before damage occurs |
| Remote Signaling Contact | Integrated changeover contact | Enables remote monitoring and predictive maintenance |
| Visual Status Indicator | Green = OK, Red = Replace | Allows quick on-site inspection of protection status |
| Network Compatibility | TN, TT, IT systems | Flexible use across multiple grounding concepts |
| Mounting Method | DIN rail TS 35 | Fast and standardized panel installation |
| Housing Design | Compact 2 TE module, IP20 | Saves space in crowded distribution cabinets |
| Operating Temperature Range | -40 °C to +85 °C | Reliable operation in harsh industrial environments |
| Compliance & Standards | IEC 61643-11, EN 61643-11, UL 1449 | Meets international safety and performance requirements |
Download Weidmueller VPU AC II 1+1 R 300/50 (2591070000) Datasheet
| Commercial Data | Details |
|---|---|
| EAN (GTIN) | 4050118599862 |
| Net Weight | 257 g |
In automated manufacturing environments, even brief voltage spikes can disrupt PLCs, sensors, and industrial power supplies. The Weidmueller VPU AC II 1+1 R 300/50 is typically installed at the main or sub-distribution level to manage surges generated by motor switching, contactors, and nearby lightning activity. Its fast response time helps clamp transient voltages before they propagate into control circuits, reducing unplanned downtime. The remote signaling function allows maintenance teams to supervise protection status centrally, ensuring the system remains protected without constant physical inspection.
Commercial buildings such as offices, hospitals, and technical facilities experience frequent electrical disturbances from elevators, HVAC systems, and grid-side switching. By integrating the Weidmueller VPU AC II 1+1 R 300/50 into low-voltage distribution panels, critical systems such as access control, fire safety equipment, and IT infrastructure gain an added layer of protection. The 1+1 protection architecture safeguards both phase and neutral conductors, helping to preserve insulation integrity and extend equipment lifespan. Its compact DIN-rail design supports easy retrofitting in existing electrical cabinets.
Water and wastewater facilities operate with large pumps, long cable routes, and distributed control systems, all of which increase susceptibility to transient overvoltages. The Weidmueller VPU AC II 1+1 R 300/50 is applied at control panels supplying instrumentation and automation equipment to reduce surge-related failures. High discharge capability enables it to withstand repeated surge events without performance loss. Stable operation across wide temperature ranges makes it suitable for control rooms and outdoor enclosures where environmental conditions can vary significantly.
Renewable energy installations often rely on auxiliary AC power to support monitoring, communication, and control equipment. These sites are commonly located in open areas with higher exposure to lightning-induced surges. Installing the Weidmueller VPU AC II 1+1 R 300/50 on auxiliary power feeds helps protect inverters’ control electronics, data acquisition systems, and remote communication units. The clear visual indicator and remote alarm contact support condition-based maintenance, ensuring protection is maintained even at remote or difficult-to-access locations.
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