DC SPD – D48, 20kA per phase surge protection devices  KDY-40-D48 y
DC SPD – D48, 20kA per phase surge protection devices  KDY-40-D48 zDC SPD – D48, 20kA per phase surge protection devices  KDY-40-D48 y

Pluggable DC Surge Protection Devices 40kA per pole 8/20μs 48Vdc KDY-40-D48

40,000 amp, DC 48V surge arrester(SPD) for DC power system

  • Type 2 surge protector for DC power system
  • Imax – 40kA/pole (8/20 waveform)
  • Un – 48Vdc
  • Up – 500V @ In
  • Fast clamp response, under 25ns
  • No leakage, no operating currents
  • High energy anti-surge components MOV
  • State-of-the-art surge protection technology
  • Failure status indicator, green/red
  • Telesignailsation indicator for remote failure alerts (optional)
  • DIN rail mounting, pluggable module, convenient replacement
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产品描述


 

KDY-40-D48(8/20µs)

KDY-40-D48 type 2 DC surge arresters/SPD is designed to protect DC load current, installs at or within equipment such as DC servo mechanisms, fire alarm monitoring systems, security system controls, telecom and datacom systems, microwave communication system, etc. to provide compact, heavy duty surge suppression. It utilizes high energy metal oxide varistors/MOV, providing a protection in CM/DM(L-PE, N-PE, L-N). These SPD are DIN rail compatible and is connected in parallel on the line to be protected.

 

Main Features

  • Type 2 surge protector for DC power system
  • Imax - 40kA/pole (8/20 waveform)
  • Un – 48Vdc
  • Up – 500V @ In
  • Fast clamp response, under 25ns
  • No leakage, no operating currents
  • High energy anti-surge components MOV
  • State-of-the-art surge protection technology
  • Failure status indicator, green/red
  • Telesignailsation indicator for remote failure alerts (optional)
  • DIN rail mounting, pluggable module, convenient replacement

 

Product Parameter

Model No. KDY-40-D48
ELECTRICAL CHARACTERISTICS
NetworkDC or PV network 48V DC
Protection ModeDM/CM
Nominal PV Operating Voltage(Un)48V DC
Maximal PV Operating Voltage(Uc)85V DC
Nominal Discharge Current (In)[8/20us]20kA(8/20µs)
Maximal Discharge Current (Imax)[8/20us] 40kA(8/20µs)
Voltage Protection Level at In (Up)≤500V
Response Time (tA)25ns
Status IndicatorGreen/Red tabs
Telesignalisation Remote Indicator(TS)optional(1NO+1NC)
Maximal Back-up Fuse16-25A gG
Follow Currentnone
MECHANICAL CHARACTERISTICS
Connection Cross-section (min.)4mm2 solid
Connection Cross-section (max.)25mm2 stranded
Connection to Networkterminals
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 CHARACATERISTICS
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)36mm*63mm*91mm
Weight(G/W)

 

 

Electrical Diagram

 PV & DC electrical

 

Wiring Diagram

DC wiring

 

Dimension

PV & DC size

 

 *Installation Notes

  1. Installation must be performed only by electrically skilled operator.
  2. Disconnect power before installing, no hot-line operation is allowed, and better to under the guidance of professional electrician.
  3. For best performance, mount protector in parallel with the equipment it is protecting as close as possible. (*Note: If protector is to be located outdoors and exposed to elements, mount protector inside a suitable weatherproof enclosure.)
  4. Use a circuit breaker in series with the protector.(*Note: if a breaker is not available, use a fused disconnect switch or a fuse block. Fuses should be time-delay type.)
  5. Green tab, normal work status, Red tab, failure status, need to be replaced rapidly.

 

00 Model Selection Table

Model Configuration
KDY-40-D12/2Ppluggable SPD, 40kA/pole, 8/20µs, for DC12V DC power system, 35mm DIN Rail
KDY-40-D24/2Ppluggable SPD, 40kA/pole, 8/20µs, for DC24V DC power system, 35mm DIN Rail
KDY-40-D48/2Ppluggable SPD, 40kA/pole, 8/20µs, for DC48V DC power system, 35mm DIN Rail
KDY-40-D110/2Ppluggable SPD, 40kA/pole, 8/20µs, for DC110V DC power system, 35mm DIN Rail
KDY-40-D220/2Ppluggable SPD, 40kA/pole, 8/20µs, for DC220V DC power system, 35mm DIN Rail

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