100V, 125V, 150V, 180V, 275V, 350V, 460V DC surge protective device SPD, Type 2, T2, Class C, Class II SLP40 DC series

For Photovoltaic PV solar and DC applications Type 2, T2, Class C, Class II, In/Imax (8/20μs): 20kA/40kA, with changeover contact.

  • Plug-in module design, easy replacement.
  • Visual Indication: Green=OK, Red=Replace.
  • Remote alarm contact to make status monitoring easy.
  • Quick thermal response for self-protection.
  • Voltage protection level (Up): 0.39kV/0.45kV/0.5kV/0.62kV/0.9kV/1.2kV/1.4kV.
  • Type 2, T2, Class C, Class II, In(8/20μs): 20kA, Imax(8/20μs): 40kA.
  • Ucdc: 100Vdc/125Vdc/150Vdc/180Vdc/275Vdc/350Vdc/460Vdc.

100V, 125V, 150V, 180V, 275V, 350V, 460V DC surge protective device SPD, Type 2, T2, Class C, Class II, SLP40 is suitable for photovoltaic applications. These SPDs are designed and tested according to DC T2 classification from IEC 61643-11 / EN 61643-11 / EN 50539-11 standard.

The indication front window helps users to know the status of the device and the remote-signal port is able to provide remote indication and alarm.
Plug-in module design makes it convenient to change modules without device disconnection.

IEC Electrical
Rated Operational DC Voltage Uo / Un75 V95 V115 V150 V210 V275 V350 V
Maximum Continuous Operating DC Voltage

(DC+) – PE, (DC-) – PE Uc

100 V

125 V150 V180 V275 V350 V

460 V

Nominal Discharge Current (8/20 μs) In20 kA
Total Discharge Current (810/20 μs) ITotal40 kA
Max. System Voltage Uoc100 V125 V150 V180 V275 V350 V460 V
Maximum Discharge Current (8/20 μs) IMaxl40 kA
Voltage Protection Level Up550 V600 V800 V900 V1000 V1500 V1800 V
Response Time tA< 25 ns
Number of Ports1
Mechanical & Environmental
Operating Temperature Range Ta-40 ºF to +158 ºF [-40 ºC to +70 ºC]
Permissible Operating Humidity RH5%…95%
Atmospheric pressure and altitude80k Pa … 106k Pa / -500 m … 2000 m
Terminal Screw Torque Mmax39.9 Ibf·in [4.5 Nm]
Conductor Cross Section (max)

2 AWG (Solid, Stranded) / 4 AWG (Flexible)

35 mm2 (Solid, Stranded) / 25 mm2 (Flexible)

Mounting35 mm DIN Rail, EN 60715
Degree Of ProtectionIP 20 (built-in)
Housing MaterialThermoplastic: Extinguishing Degree UL 94 V-0
Thermal ProtectionYes
Operating State / Fault IndicationGreen ok / Red defect
Remote Contacts (RC)Optional
RC Switching CapacityAC: 250V / 0.5 A; DC: 250V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
RC Conductor Cross Section (max)16 AWG (Solid) / 1.5 mm2 (Solid)
Order Information
Order Code100125150180275350460
SLP40 -DCXXX/24010021401252140150254018021402752540350214046021
SLP40 -DCXXX/2S (with remote contacts)4010022401252240150264018022402752640350224046022
SLP40 -DCXXX/0 (spare modules)4010002401250240150024018002402750240350024046002


Q1: Selection of surge protector

Al: The grading of the DC Surge Protector Device T2 (commonly known as lightning protection) Is assessed according to the IEC 61643-11 / EN 61643-11 / EN 50539 subdivision lightning protection theory, which is installed at the junction of the partition. Technical requirements and functions differ. The first-stage lightning protection device is installed between the 0-1 zone, high for the flow requirement, the minimum requirement of IEC 61643-11 / EN 61643-11 / EN 50539 is 40 ka (8/20), and the second and third levels are installed between the 1-2 and 2-3 zones, mainly to suppress the overvoltage.

Q2: Are you a lightning surge protectors factory or lightning surge protectors trading company?

A2: We are a lightning surge protectors manufacturer.

Q3: Warranty and services:

A3:1. Warranty 5 years

2. lightning surge protectors products and accessories have been tested 3 times before ship out.

3. We own the best after-sale service team, if any problem happens, our team will do our best to solve it for you.

Q4: How can I get some lightning surge protectors samples?

A4: We are honored to offer you lightning surge protectors samples, pis contact our staff, and leave detailed contact information, we promise to keep your information confidential.

Q5: Is the sample available and free?

AS: Sample is available, but the sample cost should be payable by you. The cost of the sample will be refunded after further order.

Q6: Do you accept customized order?

A6: Yes, we do.

Q7: What’s the delivery time?

A7: It usually takes 7-15days after confirming payment, but a specific time should be based on the order quantity.

Packaging & Shipping

Packaging & Shipping

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