AC SPD – 40kA per phase surge protection devices  NKP-DY-II-40-3P+1 z
AC SPD – 40kA per phase surge protection devices  NKP-DY-II-40-4P zAC SPD – 40kA per phase surge protection devices  NKP-DY-II-40-3P zAC SPD – 40kA per phase surge protection devices  NKP-DY-II-40-2P zNKP-DY-IF

Pluggable AC Surge Protection Devices 40kA per phase 8/20µs NKP-DY-II-40

40,000 amp per phase surge suppressor (SPD) for AC power distribution system

  • Imax – 40kA/Phase (8/20μs waveform)
  • Uc – 385V for sub distribution board
  • Up –low protection level 1.8kV/phase
  • Short action response time, only 25ns
  • Advanced anti-surge components MOV/Gas Spark
  • State-of-the-art surge protection technology
  • Failure status indicator, green/red
  • Telesignailsation indicator for remote failure alerts
  • Simple installation, easy maintenance
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产品描述

 

NKP-DY-II-40(8/20µs)

NKP-40 Series SPDs are designed to protect electric and sensitive equipments against induced surge. This surge protective device spots its capacity to withstand impulse current with 8/20µs wave form and low voltage protection level. This SPDs are installed at the sub distribution board of this installation, like transformer room, distribution cabinet, and switch cabinet.

 

Main Features

  • Imax - 40kA/Phase (8/20μs waveform)
  • Uc - 385V for sub distribution board
  • Up –low protection level 1.8kV/phase
  • Short action response time, only 25ns
  • Advanced anti-surge components MOV/Gas Spark
  • State-of-the-art surge protection technology
  • Failure status indicator, green/red
  • Telesignailsation indicator for remote failure alerts
  • Simple installation, easy maintenance

 

Product Parameter

Model No.NKP-DY-IINKP-DY-IIRNKP-DY-IIF
ELECTRICAL CHARACTRISTICS
Power System220/380V sub distribution panel
Protection ModeTT-TN-ITPE
Nominal Discharge Current (In)[8/20us]20kA(8/20µs) 20kA(8/20µs)
Maximal Discharge Current (Imax)[8/20us]40kA(8/20µs)40kA(8/20µs)60kA(8/20µs)
Nominal Voltage(Un)AC 220V AC 220V
Maximal Continuous Operating a.c. Voltage(Uc)AC 385VAC 385V500V
Voltage Protection Level at In (Up)<1.8kV<1.8kV1.5kV
Response Time (tA)25ns
Status Indicator///
Telesignalisation Remote Indicator(TS)/1NC + 1NO/
Maximal Back-up Fuse32A gG
Follow Currentnone
MECHANICAL CHARACTERISTICS
Connection Cross-section (min.)4mm2 solid
Connection Cross-section (max.)16mm2 stranded
Place of Installationindoor
Mounting35mm2 DIN rails acc. to EN 60715
Enclosure Materialthermoplastic acc. to UL94 V-0
Enclosure Color white
Degree of ProtectionIP20
Test StandardGB 18802.1-2011 / IEC 61643-1
ENVIRONMENTAL CHARACTERISTICS
Stocking Temperature -40℃~+80℃ (-104℉-176℉)
Operating Temperature-40℃~+80℃ (-104℉-176℉)
Relative Humidity (RH)5% - 95% (non-condensing)
Operating Altitude<3000m (9843ft)
Dimension(L*W*H)72mm*63mm*91mm
Weight(G/W)

 

 

Electrical Diagram

NKP-40 electrical

 

Wiring Diagram

Class II SPD wiring

 

Class II SPD wiring(TT-TN-IT)

 

Dimension

nkp-ii-40  size

 

 *Installation Notes

1. For best performance, mount protector as close t service panel as possible, protector must be connected to a dedicated overcurrent devices sized for the protector's wires.

2. Must install SPD strictly according to the wiring diagram provided

“L1, L2, L3” – live line

“N” – null line

“PE” – Earth wire/Grounding line.

3. Must cut off the power before installation, no hot-line operation is allowed, and better to under the guidance of professional electrician.

4. Green tab, normal work status, Red tab, failure status, need to be replaced Rapidly. 5. Grounding wire should be as thick and short as possible, resistance<10Ω. The grounding line: BVR≥2.5 mm2.

 

00 Model Selection Table

Model Configuration
NKP-40/385/1P+1Pluggable SPD, 40kA/Phase, 8/20µs, for single-phase 2-line/3-line AC main power distribution system, better grounding, 35mm DIN Rail
NKP-40/385/2PPluggable SPD, 40kA/Phase, 8/20µs, for single-phase 2-line/3-line AC main power distribution system, 35mm DIN Rail
NKP-40/385/3PPluggable SPD, 40kA/Phase, 8/20µs, for TN-C three-phase 4-line AC main power distribution system, 35mm DIN Rail
NKP-40/385/3P+1Pluggable SPD, 40kA/Phase, 8/20µs, for TT three-phase 4-line AC main power distribution system, 35mm DIN Rail
NKP-40/385/4PPluggable SPD, 40kA/Phase, 8/20µs, for TN-S three-phase 5-line AC main power distribution system, 35mm DIN Rail
NKP-40R/385/2PPluggable SPD, 40kA/Phase, 8/20µs, telesignalisation indicator for remote failure alerts, for single-phase 2-line/3-line AC main power distribution system, 35mm DIN Rail

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