ELS1 Surge Protective Device-DC SPD
Product Details
Product Descriprion
The device is a modular, orange-colored unit for DIN rail mounting. Its core features include compliance with Class II (8/20µs waveform) standards, construction based on Zinc Oxide Varistor (MOV) technology, and utilization of 34S MOVs to achieve a maximum discharge current (Imax) of 40kA. It offers a quick response, operates in a wide temperature range of -40℃ to +80℃, and has no power frequency continuous current flow. A notable feature is its optional remote signaling function. The product includes a clear status indicator window (green for normal operation, turning red upon failure), which can trigger a remote alarm if the signaling option is enabled.
The SPD is available in 2P, 3P, and 4P configurations. The technical data outlines several models with different Maximum Continuous Operating Voltages (Uc): DC 500V, 600V, 800V, and 1000V. Corresponding protection levels (Up) are ≤2.8kV, ≤3.2kV, ≤3.6kV, and ≤4.0kV, respectively. The nominal discharge current (In) is 20kA, with a maximum (Imax) of 40kA (both 8/20µs). It has an ultra-fast response time of ≤25ns, an admissible short-circuit current of 25kA, and requires a maximum backup fuse of 125A gL/gG. Protection modes include DC+/DC- and DC+DC-/PE.
Mechanically, it is designed as a pluggable unit for 35mm DIN rails, constructed from Thermoplastic material rated UL94 V-0. It maintains an IP20 protection rating. The remote signaling contacts support wiring up to 1.5mm² and are rated for 250V/0.1A. The product complies with the IEC/EN 61643-31 standard.
Application
|
Standard |
Confirming to IEC61643-1 |
|
Protection |
Protect electric system and on-loading electrical apparatus from thunder and instantaneous over-voltage |
|
Ambient temperature |
-40℃ to+80℃ |
|
Number of poles |
2P,3P,4P |
|
Max. continuous operating voltage (d.c.) |
DC500V,DC600V,DC800v,DC1000V |
|
Response time |
Less than 25ms |
|
On-Off indicating window |
Green normal function Red function-less, immediate replacement required |
|
Nominal discharge current (8/20us) |
20kA |
|
Max.discharge current (8/20us) |
40kA |
|
Type of terminal |
Pin type |
|
Terminal capacity |
Solid wire cross-section is 1-6mm² Stranded wire cross-section is 0.75-4mm² |
|
Installation |
Mounting on 35mm DIN rail |
|
Width |
17.5mm per pole |
|
Protection rating |
IP20 |
ELS1 Surge Protective Device
|
Type |
Poles |
Uc (V) |
In (kA) |
Imax (kA) |
Up (kV) |
Applicable grounding system |
|
ELS1-D/1-140-5 |
1 |
140 |
5 |
10 |
<0.8 |
Under AC110V and DC |
|
ELS1-D/1-275-5 |
1 |
275 |
5 |
10 |
<1.2 |
TN-C,IT,TN-S |
|
ELS1-D/1-320-5 |
1 |
320 |
5 |
10 |
<1.5 |
TN-C,IT,TN-S |
|
ELS1-D/1-385-5 |
1 |
385 |
5 |
10 |
<1.8 |
TT |
|
ELS1-D/1-420-5 |
1 |
420 |
5 |
10 |
<2.0 |
TT |
|
ELS1-D/2-140-5 |
2 |
140 |
5 |
10 |
<0.8 |
Under AC110V and DC |
|
ELS1-D/2-275-5 |
2 |
275 |
5 |
10 |
<1.2 |
TN-C,IT,TN-S |
|
ELS1-D/2-320-5 |
2 |
320 |
5 |
10 |
<1.5 |
TN-C,IT,TN-S |
|
ELS1-D/2-385-5 |
2 |
385 |
5 |
10 |
<1.8 |
TT |
|
ELS1-D/2-420-5 |
2 |
420 |
5 |
10 |
<2.0 |
TT |
|
ELS1-D/2Q-385-5 |
3 |
385 |
5 |
10 |
<2.0 |
|
|
ELS1-D/3N-275-5 |
3 |
275 |
5 |
10 |
<1.2 |
“3+1” Compage |
|
ELS1-D/3N-320-5 |
3 |
320 |
5 |
10 |
<1.5 |
“3+1” Compage |
|
ELS1-D/4-275-5 |
4 |
275 |
5 |
10 |
<1.2 |
TN-C,IT,TN-S |
|
ELS1-D/4-320-5 |
4 |
320 |
5 |
10 |
<1.5 |
TN-C,IT,TN-S |
|
ELS1-D/4-385-5 |
4 |
385 |
5 |
10 |
<1.8 |
TT |
|
ELS1-D/4-420-5 |
4 |
420 |
5 |
10 |
<2.0 |
TT |
|
Type |
Poles |
Uc (V) |
In (kA) |
Imax (kA) |
Up (kV) |
Applicable grounding system |
|
ELS1-C/1-140-5 |
1 |
140 |
15 |
40 |
<0.8 |
Under AC110V and DC |
|
ELS1-C/1-275-5 |
1 |
275 |
20 |
40 |
<1.2 |
TN-C,IT,TN-S |
|
ELS1-C/1-320-5 |
1 |
320 |
20 |
40 |
<1.5 |
TN-C,IT,TN-S |
|
ELS1-C/1-385-5 |
1 |
385 |
20 |
40 |
<1.8 |
TT |
|
ELS1-C/1-420-5 |
1 |
420 |
20 |
40 |
<2.0 |
TT |
|
ELS1-C/1-550-5 |
1 |
550 |
20 |
40 |
<2.8 |
AC380V |
|
ELS1-C/2-140-5 |
2 |
140 |
15 |
40 |
<0.8 |
Under AC110V and DC |
|
ELS1-C/2-275-5 |
2 |
275 |
20 |
40 |
<1.2 |
TN-C,IT,TN-S |
|
ELS1-C/2-320-5 |
2 |
320 |
20 |
40 |
<1.5 |
TN-C,IT,TN-S |
|
ELS1-C/2-385-5 |
2 |
385 |
20 |
40 |
<1.8 |
TT |
|
ELS1-C/2-420-5 |
2 |
420 |
20 |
40 |
<2.0 |
TT |
|
ELS1-C/2Q-320-20 |
3 |
320 |
20 |
40 |
<1.5 |
TN-C,IT,TN-S |
|
ELS1-C/2Q-385-20 |
3 |
385 |
20 |
40 |
<2.0 |
TN-C,IT,TN-S |
|
ELS1-D/3N-320-20 |
3 |
320 |
20 |
40 |
<1.5 |
“3+1” Compage |
|
ELS1-D/3N-385-20 |
3 |
385 |
20 |
40 |
<1.8 |
“3+1” Compage |
|
ELS1-D/3N-420-20 |
3 |
420 |
20 |
40 |
<2.0 |
“3+1” Compage |
|
ELS1-D/3-320-20 |
3 |
320 |
20 |
40 |
<1.5 |
TN-C,TN-C-S,TN-S |
|
ELS1-D/3-385-20 |
3 |
385 |
20 |
40 |
<1.8 |
TN-C,TN-C-S,TN-S |
|
ELS1-D/3-420-20 |
3 |
420 |
20 |
40 |
<2.0 |
TN-C,TN-C-S,TN-S |
|
ELS1-C/4-275-5 |
4 |
275 |
20 |
40 |
<1.2 |
TN-C,TN-C-S,TN-S |
|
ELS1-C/4-320-5 |
4 |
320 |
20 |
40 |
<1.5 |
TN-C,TN-C-S,TN-S |
|
ELS1-C/4-385-5 |
4 |
385 |
20 |
40 |
<1.8 |
TT |
|
ELS1-C/4-420-5 |
4 |
420 |
20 |
40 |
<2.0 |
TT |
|
Type |
Poles |
Uc (V) |
In (kA) |
Imax (kA) |
Up (kV) |
Applicable grounding system |
|
ELS1-B/3-320-3 |
3 |
320 |
30 |
60 |
<2.0 |
TN-C,TN-C-S,TN-S |
|
ELS1-B/4-320-4 |
4 |
320 |
30 |
60 |
<2.0 |
TN-C,TN-C-S,TN-S |
|
ELS1-B/3-385-3 |
3 |
385 |
30 |
60 |
<2.5 |
TT |
|
ELS1-B/4-385-4 |
4 |
385 |
30 |
60 |
<2.5 |
TT |
|
Type |
Poles |
Uc (V) |
In (kA) |
Imax (kA) |
Up (kV) |
Applicable grounding system |
|
ELS1-D/2+1 |
3 |
320 |
5 |
10 |
<1.5 |
Voltage limit TT |
|
ELS1-C/2+1 |
3 |
320 |
15 |
40 |
<1.5 |
Voltage limit TT |
|
ELS1-C/3+1 |
4 |
320 |
5 |
10 |
<1.5 |
Voltage limit TT |
|
ELS1-C/3+1 |
4 |
320 |
15 |
40 |
<1.5 |
Voltage limit TT |
|
ELS1-C/3+1G |
4 |
320 |
15 |
40 |
<1.5 |
Voltage limit TT |
|
ELS1-B/3+1G |
4 |
320 |
30 |
60 |
<1.8 |
Voltage limit TT |
|
Type |
Poles |
Uc (V) |
In (kA) |
Imax (kA) |
Iimp (kA) |
Up (kV) |
Applicable grounding system |
|
ELS1-D/2+1 |
3 |
255 |
20 |
40 |
- |
<1.5 |
Voltage switch TT |
|
ELS1-C/2+1 |
3 |
255 |
40 |
- |
12 |
<2.0 |
Voltage switch TT |
|
ELS1-D/3+1 |
4 |
255 |
20 |
40 |
- |
<1.5 |
Voltage switch TT |
|
ELS1-C/3+1 |
4 |
255 |
40 |
- |
12 |
<2.0 |
Voltage switch TT |
|
ELS1-C/3+1G |
4 |
255 |
100 |
- |
60 |
<2.5 |
Voltage switch TT |
|
ELS1-B/3+1G |
4 |
255 |
100 |
- |
60 |
<2.5 |
Voltage switch TT |
|
Type
Technic SG data |
ELS1-D |
ELS1-C |
ELS1-B |
|||||||||||
|
[]-140-5 |
[]-275-5 |
[]-320-5 |
[]-385-5 |
[]-420-5 |
[]-140-15 |
[]-275-20 |
[]-320-20 |
[]-385-20 |
[]-420-20 |
[]-550-20 |
[]-320-30 |
[]-385-30 |
||
|
Max.continuous operationSG vol.(Uc) |
140V |
275V |
320V |
385V |
420V |
140V |
275V |
320V |
385V |
420V |
550V |
320V |
385V |
|
|
Level of vol.protection(Up<) |
0.8kV |
1.2kV |
1.5kV |
1.8kV |
2.0kV |
0.8kV |
1.2kV |
1.5kV |
1.8kV |
2.0kV |
2.5kV |
2.0kV |
2.5kV |
|
|
NominSG discharge current In(8/20us)kA |
5 |
5 |
5 |
5 |
5 |
15 |
20 |
20 |
20 |
20 |
20 |
30 |
30 |
|
|
Max discharge current In(8/20us)kA |
10 |
10 |
10 |
10 |
10 |
40 |
40 |
40 |
40 |
40 |
40 |
60 |
60 |
|
|
ns |
<25 |
<25 |
<25 |
|||||||||||
|
Pole width(mm) |
|
18 |
|
|||||||||||
|
Colour |
yellow |
gray |
red |
|||||||||||
|
Protection degree |
IP20 |
IP20 |
IP20 |
|||||||||||
|
MetirSG of cover |
PBT |
PBT |
PBT |
|||||||||||
|
Circuit Breaker |
10~16A |
25~32A |
25~32A |
|||||||||||
|
Wiring |
L,N |
2.5~35mm² |
2.5~35mm² |
2.5~35mm² |
||||||||||
|
PE |
4.0~35mm² |
4.0~35mm² |
4.0~35mm² |
|||||||||||
How to select surge protectors
a. The voltage should be≤Uc;
b. Up<maximum impulse withstands;
c. Different protectors should be selected according to various grounding system and protection mode.
Allocation of surge protectors under TT system
|
ELS1-B series surge protector Lightening protection area the boundary between LPZ0 & LPZ1 Protection category: B Over-voltage mounting category: III Rated impulse withstand voltage: 4000V Parameters of discharge: Uimp and In Master power distribution cabinet |
ELS1-C series surge protector Lightening protection area the boundary between LPZ1 & LPZ2 Protection category: C Over-voltage mounting category: II Rated impulse withstand voltage: 2500V Parameters of discharge: lmax and In Branch power distribution cabinet |
ELS1-D series surge protector Lightening protection area the boundary between LPZ2 & LPZ3 Protection category: D Over-voltage mounting category: I Rated impulse withstand voltage: 1500V Parameters of discharge: Uoc and Isc Terminal of power distribution |
Overall and Mounting Dimensions
Product display
Features
Multi-Voltage Application
Available in key DC voltage ratings (500V/600V/800V/1000V) to match various system requirements.
2. Clear Value & Pricing
Transparent cost structure for easy budgeting, as shown in the provided material.
3. Easy Selection & Installation
Modular plug-in design for simple DIN rail mounting, reducing maintenance time and effort.