N8UE1+2/7 Type 1+2 AC Surge Protection Device

Description

Engineered for extreme conditions, the N8UE1+27 delivers robust surge protection across –40℃to +85℃ and altitudes up to 5000m. As a combined Type 1+2 SPD, it effectively handles both direct lightning strikes and switching transients, featuring a 7kA impulse discharge current (10/350μs) and a 50kA maximum discharge current (8/20μs). With a low voltage protection level of 1.5kV and an ultra-fast response time ≤25ns, it safeguards sensitive equipment reliably. Available in 1P–4P configurations, it mounts on a standard 35mm DIN rail and supports backup fuses up to 125A. The flame-retardant UL 94 V-0 housing and wide terminal compatibility (1.5–35mm²) ensure secure and versatile installation. IP20 rated for indoor use.

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Technical Data

Operating Temperature Range	-40 ℃～85 ℃
Permissible Operating Humidity	5 %～95 %
Atmospheric pressure and altitude	-500 m ~ +5000 m
Model NO.	N8UE1+2/7
SPD Type	Type 1+2
Protection Mode	L1/2/3/N-PE
Maximum Continuous Operating Voltage (AC)Uc	275 V
Frequency	50/60 Hz
Nominal Discharge Current In (8/20 μs)	20 kA
Maximum Discharge Current Imax (8/20 μs)	50 kA
Impulse Discharge Current Iimp (10/350 μs)	7 kA
Voltage Protection Level Up	1.5 kV
Back-Up Fuse (max)	125 A gL/gG
Response Time tA	≤25 ns
Terminal Screw Torque	MC cable: 1.5 mm²～25 mm² SC cable: 1.5 mm²～35 mm²
Degree of Protection	IP 20
Dimensions	1P:82±1mm×18±1mm×66±1mm (L×W×H) 2P:82±1mm×36±1mm×66±1mm (L×W×H) 3P:82±1mm×54±1mm×66±1mm (L×W×H) 4P:82±1mm×72±1mm×66±1mm (L×W×H)
Mounting	35 mm guide rail
Housing material	UL 94 V-0