OBO MC 125-B/NPE B-grade lightning arrester

Product Introduction

Characteristic List MC 125-B/NPE	Advantages of use
Sealed structure design, no arc leakage during operation	Can be enclosed and installed in any standard distribution box
Passed security testing and obtained VDE, OVE, KEMA, KEUR, MEEI, EZU testing marks	A reliable protector suitable for all application scenarios, approved by multiple companies Testing by independent testing agencies.
High lightning current capacity, 125kA (10/350)	High safety in use
Each end provides two connection terminals	Easy to use Kevin wiring method
Provide tunnel type connection method	No need for grounding jumper, easier and safer installation

Function and application areas
Surge protector MC 125-B/NPE is a spark gap protector designed for use between neutral wire (N) and protective earth (PE), and can be used in TN-S, TT, and IT systems. The two spark gaps are located inside the device and consist of three high-energy graphite electrode disks. The highly heat-resistant PTFE spacer ring reliably ensures a precise safety distance within the spark gap.
This surge protector meets the requirements of DIN VDE 0675 Part 6 (Draft 11.89) A1 and A2 for Class B devices, as well as the requirements of IEC 61643-1 (02.98) for Class I lightning surge protectors. This device is designed for use between Zone 0 and Zone 1 (according to the definition of lightning protection zone in IEC 61312-1).
For lightning protection installation projects in buildings or other places where power is introduced through overhead lines, MC 125-B/NPE is used in conjunction with lightning surge protector MC 50-B VDE to provide equipotential connection for lightning protection.

install
The shell size of the lightning surge protector MC 125-B/NPE meets the requirement of a space saving 17.5mm width modulus, making the device easy to install. The easy installation of this SPD is achieved by clamping the surge protector itself onto a 35mm rail. MC 125-B/NPE provides two terminals for the N line and PE line respectively. Facilitating the Kevin connection between SPD and the circuit.

Technical Specifications

Lightning protection controller model	MC 125-B/NPE
Nominal voltage UN	230 V/50-60 HZ
Maximum continuous operating voltage UC	255 V
Requirement level - According to DIN VDE 0675 Part 6 (Draft 11.89) A1, A2 - According to IEC 61643-1	B Grade I
Lightning protection zone	0→1
Insulation resistance Rins	>100 MΩ
Voltage protection level Up	<2 kV
Response time TA	<100 ns
Surge current test (10/350) - Lightning current parameters according to IEC 61312-1 (02.95) Peak current Iimp Electricity Q Unit energy W/R	125 kA 62.5 As 3.9 MJ/Ω
The ability of the protector to interrupt the subsequent current of the mains under UC	100 Arms
Temperature range υ	-40 ℃ to+85 ℃
air humidity	≤95%
IP rating	IP 20
Connecting body cross-sectional area single/multi/multi strand flexible wire Tightening torque (MA) of at least 4Nm	10-50/ 10-25/ 10-35mm2 AWG 8-2
install	Clamp onto a 35mm2 guide rail (According to DIN EN 50022)
Reserved technical change rights