K1-2PG275 Mersen Surge Protector Type 1+2 SPD 2 Pole 230 Volt 20KA TT

Why Choose the K1-2PG275 SPD, T1+2, 1+1, Uc 275Vac?

The K1-2PG275 is a robust Type 1+2 surge protective device designed for reliable protection of low-voltage power systems against direct lightning strikes and transient overvoltages. Its 1+1 configuration enables effective safeguarding of both phase and neutral conductors in TN and TT systems operating at up to 275Vac.

Engineered for demanding industrial environments, this SPD features high surge capacity, fast response times, and compact DIN-rail mounting for streamlined installation. Choose the K1-2PG275 for proven performance, enhanced safety, and compliance with stringent surge protection standards.

Technical Specifications

• Item number: 44120200
• Catalogue No: K1-2PG275
• Description: SPD, T1+2, 1+1, Uc 275Vac
• EAN/UPC Code: 8435297888055
• RoHS Compliant: Yes
• IEC SPD Type: Class I+II
• UL SPD Type: Type 1 Component Assembly
• Format: Pluggable
• Nominal Operating Volt Rating (Un): 230
• AC or DC: AC
• Nominal Discharge Current (In) (8/20): 20 kA
• Max Discharge Current : Imax (8/20): 50 kA
• Protection Modes: L-N / N-PE
• System Configuration: TT, TNS
• Lightning Impulse Current (10/350) (LIMP): 12.5 kA
• Following Current (Ifi): 100 A
• Short Circuit Withstand (ISCCR): 25 kA
• Indication System: Yes
• Indication System Type: Green (OK) / Not green (replace)
• Number of Poles: 2-Pole
• Torque Rating: 3 Nm
• Max. Back-Up Fuse: 315 A [gG]
• Housing Material: PA6 CT1 & PA66 CT1
• Installation Mounting: DIN rail
• Uc (L-N): 275 V
• Uc (N-PE): 255 V
• Up at In (N-PE): ≤1,5 kV
• Up at In (L-N): ≤1,5 kV
• Up at In (L-PE): ≤1,8 kV
• MCOV L-G: 275 V
• MCOV N-G: 305 V
• MCOV L-N: 275 V
• VPR L-G: 1500 V
• VPR N-G: 1000 V
• VPR L-N: 1200 V
• Replacement Plug N-PE: 44120000
• Replacement Plug L-N: 44120001
• Product Width: 36 mm
• Product Length: 90.4 mm
• Product Height: 90 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 0.26 kg
• Sell Pack Width: 38 mm
• Sell Pack Length: 97 mm
• Sell Pack Height: 118 mm
• Product group: Power Line SPDs
• Product Weight: 0.24 kg

Product Code: 44120200

Key Benefits

• High surge capacity with 20 kA nominal discharge current and 50 kA maximum discharge current for enhanced protection.
• Dual protection modes (L-N and N-PE) suitable for TT and TNS systems.
• Compact 2-pole design with DIN rail mounting for easy installation in industrial panels.
• Visual indication system with green (OK) and non-green (replace) status for quick maintenance checks.
• Robust housing materials (PA6 CT1 & PA66 CT1) ensure durability in harsh environments.
• Compliance with IEC Class I+II and UL Type 1 standards for reliable surge protection.

Compatibility

The K1-2PG275 SPD is compatible with low-voltage power systems operating at nominal voltages up to 275Vac, specifically designed for TT and TNS system configurations. It supports 2-pole installations protecting both phase and neutral conductors and is suitable for use with backup fuses up to 315 A [gG]. Replacement plugs 44120000 and 44120001 ensure easy maintenance and continued protection.

Applications

• Industrial power distribution panels requiring high-level surge protection.
• Commercial buildings with sensitive electrical and electronic equipment.
• Renewable energy installations needing reliable transient overvoltage protection.
• Infrastructure projects in lightning-prone areas.
• Manufacturing facilities with critical machinery and control systems.

Common Search Terms

Surge protective device, SPD 275Vac, Type 1+2 SPD, 2-pole surge protector, DIN rail SPD, lightning surge protection, industrial surge protector, power line SPD, K1-2PG275, transient voltage suppressor.