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AC SPD WPX-MPA20-275/3+N

Product introduction:AC surge protection WPX-MPA40-385/3+N power module surge protector is consisting of four MOV type power supply module, used for L-N, N-PE class C protection.

Product application:It is suitable for being used in TT, TN-S, and low voltage AC distribution system and provides C class surge protection for three phase power supplies.

Phone number:+86-731-88650578

Contact E-mail:[email protected]

Model NumberWPX-MPA20-275/3+N-FMWPX-MPA20-275/3+N
SPD according IEC61643-11/EN 61643-111 Class Ⅱ/Type 2Class Ⅱ/Type 2 
Applicable power supply systemTNC/TNS/TT/ITTNC/TNS/TT/IT
Modes of protectionL1/L2/L3-N,N-PEL1/L2/L3-N,N-PE
Rated Working Voltage Uo230V/400V~230V/400V~
Max Continuous Operating Voltage Uc(L-N)275V~275V~
Max Continuous Operating Voltage Uc(N-PE)260V~260V~
Nominal Discharge Current In(8/20μs) (L-N)20kA20kA
Μax Discharge Current In(8/20μs) (L-N)40kA40kA
Nominal Discharge Current In(8/20μs) (N-PE)20kA20kA
Μax Discharge Current In(8/20μs) (N-PE)40kA40kA
5kA, Voltage Protection Level Up(L-N)≤1.4kV≤1.4kV
10kA, Voltage Protection Level Up(L-N)≤1.5kV≤1.5kV
In Voltage Protection Level Up(L-N)≤1.8kV≤1.8kV
Voltage Protection Level Up(N-PE)≤1.5kV≤1.5kV
Response Time tA (L-N)≤25ns≤25ns
Response Time tA (N-PE)≤100ns≤100ns
Max. mains-side Overcurrent Protection(L)125A (gL/gG)125A (gL/gG)
Cross sectional area for wiring terminal connected to conductorStranded:4~25mm²Stranded:4~25mm²
Cross sectional area for wiring terminal connected to conductorSolid Wire:4~35mm²Solid Wire:4~35mm²
Operating Temperature Range-40℃...+80℃-40℃...+80℃
Relative Humidity≤95%(25℃)≤95%(25℃)
Atmospheric Pressure86kPa...106kPa86kPa...106kPa 
Working Frequency42Hz...68Hz42Hz...68Hz
Torque: wiring terminal/remote signaling interface2.5Nm/0.25Nm2.5Nm
Enclosure material合金塑料/UL V-0合金塑料/UL V-0
MountingDIN 35mm railDIN 35mm rail
Degree of protection(IP code)IP20--------
Max. Cross-sectional Area For Remote Signaling Interface1.5mm²--------
Intensity of Remote Signalling Alarm ContactAC:250V/ 0.75A 125V/ 3A--------
 DC: 30V/ 2A       
Diagram of dimensions




Intensity of Remote Signalling Alarm Contact

Failure indication and centralized remote signalling alarm dry contacts;

High discharge capacity and low residual voltage;

Over-temperature protection;

IP20, UL94 V0


Worktime:8:00 ~ 17:00


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