PHOENIX CONTACT Surge Protective Device VAL-MS-T1/T2 335/12.5/1+1, Type 1+2, 1-Phase, 335 V AC, 12.5 kA

The PHOENIX CONTACT VAL-MS-T1/T2 335/12.5/1+1 is a high-performance surge protective device (SPD) designed for AC power systems. It combines Type 1 and Type 2 protection in a single compact unit, safeguarding electrical installations against direct lightning strikes and switching surges. Ideal for main distribution boards in residential, commercial, and industrial applications.

Advantages

This SPD offers reliable protection with a high impulse current rating of 12.5 kA (10/350 µs) and a nominal discharge current of 20 kA (8/20 µs). Its pluggable design allows for easy replacement of protection modules without rewiring. The device features a low voltage protection level (≤1.5 kV) and a fast response time (<25 ns), ensuring sensitive equipment remains safe.

Suitable for

• Main distribution boards in single-phase AC systems
• Protection against direct lightning strikes (Type 1) and switching surges (Type 2)
• Industrial, commercial, and residential installations

Key specifications

• SPD Type: Type 1+2 / Class I+II
• Nominal Voltage (Un): 230 V AC (50/60 Hz)
• Maximum Continuous Operating Voltage (Uc): 335 V AC
• Nominal Discharge Current (In): 20 kA (8/20 µs)
• Impulse Current (Iimp): 12.5 kA (10/350 µs)
• Voltage Protection Level (Up): ≤1.5 kV (L-N, N-PE)
• Protection Configuration: 1-phase (1+1 circuit)
• Number of Poles: 2
• Mounting Type: DIN rail
• Response Time (tA): <25 ns
• Operating Temperature Range: -40 °C to 80 °C
• Degree of Protection: IP20
• Standards Compliance: IEC 61643-11, EN 61643-11
• Technology: Varistor (MOV)
• Pluggable Design: Yes
• Max. Backup Fuse: 315 A (gG/gL)
• Short-circuit current rating (Isccr): 50 kA

Recommendations

For optimal protection, install this SPD at the main distribution board and ensure proper grounding. Regularly check the status indicator and replace the module if needed. Suitable for use with backup fuses up to 315 A.