ODM SJKS1D Series Surge Protection Device 1P-4P 50Hz Manufacturers, Company

1 / 5

ODM SJKS1D Series Surge Protection Device 1P-4P 50Hz Manufacturers, Company

This SJKS1D series surge protection device (SPD) safeguards electrical systems against lightning and transient surges, with no need for power shutdown during unit replacement. Rated for 420V continuous operation, it handles up to 20kA (8/20μs) peak currents and responds in under 25ns for ultra-fast protection. A clear visual indicator shows green for normal operation and red for faults. Available in 1P–4P modular units, it fits standard 35mm DIN rails and works reliably from -40°C to +85°C, ideal for industrial, commercial, and residential applications.

Send Inquiry

Product Description

Type Designation

1	Surge Protective Device (SPD)
2	Class D Protection
3	Maximum Discharge Current Imax (kA)
4	Number Of Poles: 1P, 2P, 3P, 4P, N+PE
5	Maximum Continuous Operating Voltage Uc (V)

Product Features

✔

Protector unit can be replaced without power interruption.

✔

Withstands lightning current surges up to 20kA (8/20μs).

✔

Response time: < 25 ns.

✔

Visual indicator window shows protection status: Green = Normal, Red = Fault.

Product Display

Technical Parameters

Parameter	SJKS1-10	SJKS1-20
Maximum continuous operating voltage Uc (V~)	420V
Voltage protection level Up (V~, kV)	≤1.0	≤1.2
Nominal discharge current In (8/20μs, kA)	5kA	10kA
Maximum discharge current Imax (8/20μs, kA)	10kA	20kA
Response time (ns)	<25
Connection cross-section L/N (mm²)	6mm²
Connection cross-section PE (mm²)	10mm²
Recommended fuse / breaker rating (A)	10A, 16A
Operating temperature (°C)	-40°C ~ +85°C
Relative humidity (at 25°C)	≤95%
Mounting	Standard 35mm DIN rail
Housing material	Glass fiber reinforced plastic

Outline Dimensions and Installation Size

Here’s the standardized English version for your SJKS1D Series Surge Protection Device, including common dimensions based on DIN rail SPD form factors:

Poles	Width	Height	Total Depth	Mounted Depth	Housing Height	DIN Rail Width
1P	18	90	62	50	45	35
2P	36	90	62	50	45	35
3P	54	90	62	50	45	35
4P	72	90	62	50	45	35

Frequently Asked Questions

Can the protection module be replaced while the system is powered on?

Yes, the protector unit is designed with a pluggable architecture that allows for replacement without power interruption, ensuring continuous electrical operation and safety.

What does the visual indicator window indicate?

The status window provides clear visual monitoring: Green signifies normal operation, while Red indicates a fault state, signalling that the module needs to be replaced.

How quickly does the surge protective device react to electrical surges?

The device features an ultra-fast response time of less than 25 nanoseconds (<25 ns), delivering rapid suppression against lightning surges and transient overvoltages.

What mounting system is required for installation?

The SJKS1D series is engineered for tool-free, modular installation on standard 35mm DIN rails, making it compatible with standard distribution boards.

What is the difference between SJKS1-10 and SJKS1-20 models?

The SJKS1-10 handles a nominal discharge current of 5kA with a max rating of 10kA (Up ≤1.0 kV), whereas the SJKS1-20 offers higher protection capacity with a nominal current of 10kA and max current of 20kA (Up ≤1.2 kV).

ODM SJKS1D Series Surge Protection Device 1P-4P 50Hz Manufacturers, Company

Product Description

Type Designation

Product Features

Product Display

Technical Parameters

Outline Dimensions and Installation Size

Frequently Asked Questions

Related Products

High-Quality SJKS1-B Series Surge Protection Device 80KV 385V Factories, Companies

ODM SJKS1-C Series Surge Protection Device SPD 3/4P 25kA Suppliers, Company

ODM SJKS1D Series Surge Protection Device 1P-4P 50Hz Manufacturers, Company

China High-Performance HL30-100 Miniature Disconnect Switch 1-4P 6-100A from China Factory - Trusted Suppliers Manufacturers, Manufacturer

High-Quality China ZN63A(VS1)-12/24 Indoor High Voltage Vacuum Circuit Breaker - Reliable Suppliers & Factory Solutions Manufacturers, Factories

OEM Single Phase Current Limiting Protector - Fire-Resistant, Adjustable Overload, China Suppliers, Factory Direct Suppliers, Factory

ODM ZGS11-Z.T Integrated Photovoltaic Step-up Substation Manufacturer, Companies

ODM High Voltage Load Breaker Switch FK(R)N12-24D - 24kV Solutions from China Suppliers and Factory Suppliers, Factory

High-Quality JBK5 Series Machine Tool Control Transformers - Reliable China Suppliers and Factory Solutions Factory, Company

China GN30-12(D) Rotary Indoor High-Voltage Disconnector Manufacturer, Factory