NOARK Stopper Type 1+2 SPD, 275 V AC, 12.5 kA, Replaceable Cartridge, 1+N-PE, DIN Rail

The NOARK Stopper Type 1+2 surge protective device (SPD) provides comprehensive protection against both direct lightning strikes (Type 1) and switching surges (Type 2). Designed for 1+N-PE systems, it features a replaceable cartridge for easy maintenance and a compact DIN rail mount design. With a maximum continuous operating voltage of 275 V AC and a nominal discharge current of 12.5 kA, it ensures reliable protection for electrical installations in residential, commercial, and industrial applications.

Advantages

Combined Type 1+2 protection in a single device saves space and installation costs. The replaceable cartridge allows quick replacement without removing the base unit, reducing downtime. Visual status indication (green/red) provides immediate operational status. High short-circuit withstand capability (50 kA) ensures safety under fault conditions.

Suitable for

• Main distribution boards in buildings with external lightning protection systems
• Sub-distribution boards requiring coordinated surge protection
• Industrial control panels and machinery
• Telecommunications and data centers
• Residential and commercial electrical installations

Key specifications

• SPD Type: Type 1+2 (T1+T2)
• Configuration: 1+N-PE
• Number of Poles: 2
• Maximum Continuous Operating Voltage (Uc): 275 V AC
• Nominal Discharge Current (In) (8/20 µs): 12.5 kA
• Impulse Current (Iimp) (10/350 µs): 12.5 kA
• Voltage Protection Level (Up): < 1.5 kV
• Response Time (tA): < 25 ns
• Max. Backup Fuse (gG): 125 A
• Short-circuit Withstand Capability (Isccr): 50 kA
• Replaceable Cartridge: Yes
• Status Indication: Visual (Green/Red)
• Mounting Type: DIN Rail 35 mm
• Protection Degree: IP20
• Operating Temperature Range: -40 to +80 °C
• Standards: IEC/EN 61643-11

Recommendations

For optimal protection, install this SPD at the main distribution board as close as possible to the service entrance. Ensure proper coordination with downstream Type 2 or Type 3 SPDs. Always follow local electrical codes and manufacturer instructions.