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EPS1 Series

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# EPS1 Series

Surge Protective Device

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EPS1 Series Surge Protective Device

Standard IEC 61643-11

Protection Protect electric system and on-loading electrical apparatus from thunder and instanteous over-voltage

Ambient temperature(°C) -40℃~+70℃ Number of poles 2P,4P Maximum continuous Operating voltage Uc(V~) 275/320/385 Nominal discharge current In (kA) 20 Maximum discharge current lmax (kA) 40 Protection level Up(kV) 1.5/1.7/1.8 Response time t(ns) 25 On-Off indicating window Green: normalfunction Red: functionless,immediate replacement required Type of terminal Pin type Installation Mounting on 35mm DIN rail Ground system TN-S/TN-C,TT

EPS1/2 EPS1/4

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EPS1 Series Surge Protective Device Applicable grounding system Type

EPS1-C/2-275-40

EPS1-C/2-320-40 320 20 40

EPS1-C/2-385-40 385 <1.8 EPS1-C/2

EPS1-C/4-275-40

EPS1-C/4-320-40

EPS1-C/4-385-40 EPS1-C/4

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Discharge current Nominal (kA) Uc(V~ Poles

20 40 275 <1.5

20 40

20 40 275 <1.5

4 320 20 40

385 <1.8 20 40

Up (kV) Max. (kA)

<1.7

TT/TN

<1.7

EPS1 Series Surge Protective Device Mechnical characteristics Mechnical characteristics Type 2P 4P

Recommended Cable cross Section ≥6mm² ≥10mm²

Overall and mounting dimensions

Working Principle Diagram

Connection By screw terminals : 6-25 mm2 Terminal Screw Torque 2.0 Nm

Degree of Protection IP20 Housing PA Flame retardant grade UL94 V0 4.8VA Operating temperature -40℃~70℃

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