Weidmüller VPU AC II 3+1 300/50 Surge Protection Device Type 2, 3-Phase + Neutral, 300 V AC, 20 kA/40 kA, DIN Rail

The Weidmüller VPU AC II 3+1 300/50 is a high-performance Type 2 surge protection device (SPD) designed for three-phase AC power systems with neutral. It provides reliable protection against transient overvoltages in industrial and commercial installations, ensuring the safety and longevity of connected equipment.

Advantages

Robust Type 2 protection with high discharge capacity (Imax 40 kA) for demanding environments. Compact 4 TE modular design saves space on DIN rails. Visual status indication (green/red) allows quick inspection. Wide operating temperature range (-40 °C to 80 °C) ensures performance in extreme conditions.

Suitable for

• Three-phase AC power distribution panels
• Industrial control systems
• Commercial building electrical infrastructure
• Telecommunications and data center power feeds

Key specifications

• SPD Type: Type 2 (Class II)
• Network Configuration: 3-Phase + Neutral (3+1)
• Max. Continuous Operating Voltage (Uc): 300 V AC
• Nominal Discharge Current (In): 20 kA (8/20 µs)
• Max. Discharge Current (Imax): 40 kA (8/20 µs)
• Voltage Protection Level (Up) L-N: ≤ 1.4 kV
• Voltage Protection Level (Up) N-PE: ≤ 1.4 kV
• Response Time: < 25 ns
• Mounting: DIN Rail 35 mm
• Protection Degree: IP20
• Housing Material: Thermoplastic, flame retardant
• Number of Poles: 4
• Modular Width: 4 TE (72 mm)

Recommendations

For optimal protection, install this SPD at the main distribution board. Ensure proper grounding and coordination with downstream surge protectors. Regularly check the status indicator; replace if red.