12V 24V 48V DC Surge Protective Device SPD Type 2 T2 Class C Class II SLP20-DC series
For Photovoltaic PV solar and DC applications Type 2 T2 Class C, In/Imax (8/20μs): 10kA/20kA, 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): 0.25kV/0.3kV.
- Type 2, T2, Class C, Class II, In(8/20μs): 10kA, Imax(8/20μs): 20kA.
- Undc: 12Vdc/24Vdc/48Vdc.
- Ucdc: 24Vdc/38Vdc/65Vdc.
DC Surge Protective Device SPD Type 2 T2 Class C SLP20 series is suitable for photovoltaic applications. These SPDs are designed and tested according to DC Type 2 classification from IEC 61643-11 / EN 61643-11 / EN 50539-11 standard.
Plug-in module design makes it convenient to change modules without device disconnection.
SLP20-DCXXX/2(S) | 24 | 38 | 65 |
IEC Electrical | |||
Rated Operational DC Voltage Uo / Un | 12 V | 24 V | 48 V |
Maximum Continuous Operating DC Voltage (DC+) – PE, (DC-) – PE Uc | 24 V | 38 V | 65 V |
Nominal Discharge Current (8/20 μs) In | 10 kA | 10 kA | 15 kA |
Total Discharge Current (810/20 μs) ITotal | 20 kA | ||
Max. System Voltage Uoc | 24 V | 38 V | 65 V |
Maximum Discharge Current (8/20 μs) IMaxl | 20 kA | ||
Voltage Protection Level Up | 250 V | 250 V | 300 V |
Response Time tA | < 25 ns | ||
Number of Ports | 1 |
Mechanical & Environmental | |
Operating Temperature Range Ta | -40 ºF to +158 ºF [-40 ºC to +70 ºC] |
Permissible Operating Humidity RH | 5%…95% |
Atmospheric pressure and altitude | 80k Pa … 106k Pa / -500 m … 2000 m |
Terminal Screw Torque Mmax | 39.9 Ibf·in [4.5 Nm] |
Conductor Cross Section (max) | 2 AWG (Solid, Stranded) / 4 AWG (Flexible) 35 mm2 (Solid, Stranded) / 25 mm2 (Flexible) |
Mounting | 35 mm DIN Rail, EN 60715 |
Degree Of Protection | IP 20 (built-in) |
Housing Material | Thermoplastic: Extinguishing Degree UL 94 V-0 |
Thermal Protection | Yes |
Operating State / Fault Indication | Green ok / Red defect |
Remote Contacts (RC) | Optional |
RC Switching Capacity | AC: 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 Code | 24 | 38 | 65 |
SLP20 -DCXXX/2 | 2002421 | 2003821 | 2006521 |
SLP20 -DCXXX/2S (with remote contacts) | 2002422 | 2003822 | 2006522 |
SLP20 -DCXXX/0 (spare modules) | 2002402 | 2003802 | 2006502 |
FAQ
Q1: Selection of surge protector
Al: The grading of the surge protector (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 20 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

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