Surge voltage arrester consisting of base element with protective plug - PHOENIX CONTACT - VAL-MS 350VF - 2856582 View larger
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Surge voltage arrester consisting of base element with protective plug - PHOENIX CONTACT - VAL-MS 350VF - 2856582





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Surge voltage arrester consisting of base element with protective plug with a connection in series with a varistor and a gas-filled spark gap, for mounting on NS 35/7.5, nominal voltage: 230 V AC, 1-channel

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Overvoltage Protection Over Voltage

TRABTECH Power and Signal Quality - PHOENIX CONTACT

Surge protection - PHOENIX CONTACT

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Height90 mm
Width17.6 mm
Depth58 mm
Horizontal pitch1 Div.

Ambient conditions

Degree of protectionIP20 (only when all terminal points are used)
Ambient temperature (operation)-40 °C ... 80 °C
Ambient temperature (storage/transport)-40 °C ... 80 °C
Altitude≤ 2000 m (amsl (above mean sea level))
Permissible humidity (operation)5 % ... 95 %
Shock (operation)25g
Vibration (operation)5g


Standards/specificationsIEC 61643-11 2011
EN 61643-11 2012
IEC test classificationII
EN typeT2
IEC power supply systemTN
Number of portsOne
SPD designCombination type
Mode of protectionL-PEN
Mounting typeDIN rail: 35 mm
Housing materialPA 6.6
Pollution degree2
Flammability rating according to UL 94V-0
TypeDIN rail module, two-section, divisible
Number of positions1
Surge protection fault messageoptical

Additional descriptions

NoteUsable in all low-voltage systems between L-N or L-PEN.Only usable in IT Systems between L-PE, if the exposed-conductive-parts (bodies) of the equipment of the low-voltage installation is connected to the earthing arrangement of the transformer substation. (interconnected earthing arrangement of the HV-transformer substation with the bodies of the LV-installation. RE = RA accordance to IEC 60364-4-442 / VDE 0100-442 Fig. 44D / Example a)

Protective circuit

Nominal voltage UN240/415 V AC (TN)
240/415 V AC (TT)
230 V AC (IT)
Nominal frequency fN50 Hz (60 Hz)
Maximum continuous voltage UC350 V AC
Rated load current IL80 A
Residual current IPE≤ 5 µA
Standby power consumption PC≤ 2 mVA
Nominal discharge current In (8/20) µs10 kA
Maximum discharge current Imax (8/20) µs20 kA
Short-circuit current rating ISCCR25 kA
Voltage protection level Up≤ 1.5 kV
Residual voltage Ures≤ 1.2 kV (at In)
≤ 1.2 kV (at 10 kA)
≤ 1.1 kV (at 5 kA)
Front of wave sparkover voltage at 6 kV (1.2/50) µs≤ 1.5 kV
TOV behavior at UT415 V AC (5 s / withstand mode)
440 V AC (120 min / withstand mode)
Response time tA≤ 100 ns
Max. backup fuse with branch wiring125 A AC (gG)
Max. backup fuse with V-type through wiring80 A AC (gG)

Connection data

Connection methodScrew connection
Conductor cross section flexible min.1.5 mm²
Conductor cross section flexible max.25 mm²
Conductor cross section solid min.1.5 mm²
Conductor cross section solid max.35 mm²
Conductor cross section AWG15 ... 2
10 ... 2 (UL)
Screw threadM5
Tightening torque4.5 Nm
30 lbf-in. (UL)
Stripping length16 mm

UL specifications

SPD Type4 (for Type 2 applications)
Maximum continuous operating voltage MCOV (L-N)350 V AC
Nom. voltage350 V AC
Mode of protectionL-N
Power distribution system1
Nominal frequency50/60 Hz
Voltage protection rating VPR (L-N)1.2 kV
Nominal discharge current In (L-N)10 kA

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