ELS1 Series Surge Protective Device（AC SPD）
Product Details
Product Descriprion
The ELECO T2 is a Type 2/Class II AC Surge Protective Device designed for robust performance in demanding environments. Certified to IEC/EN 61643-11, it utilizes zinc oxide MOV technology to provide a maximum discharge capacity of 40kA (8/20µs), effectively safeguarding electrical systems against transient overvoltages. Its industrial design supports a wide operating temperature range from -40℃ to +80℃ and features a flame-retardant (UL94 V-0) thermoplastic housing with IP20 protection.
Designed with installers and system integrators in mind, this SPD offers versatile configurations (1P, 2P, 1P+N, 3P, 3P+N, 4P) to match various AC system voltages (275V, 320V, 385V, 440V). Its pluggable design allows for quick installation and replacement on a standard 35mm DIN rail, minimizing downtime. Clear green/red visual fault indication, coupled with an optional remote signaling contact (250V/0.1A), enables proactive system monitoring and maintenance planning.
We provide more than just components; we offer partnership. As a professional manufacturer, we support your projects with reliable products suitable for a wide range of applications, from data centers and industrial facilities to commercial buildings. We are committed to supporting OEM/ODM requests and bulk project orders, ensuring you receive tailored solutions, consistent quality, and dependable supply for your business needs.
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. continuousoperating voltage (d.c.) |
AC275V,AC320V,AC385V,AC440V,AC55V |
|
Response time |
≤25ns;≤100ns(AC 55V) |
|
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
1. Ultra-Fast Certified Safety
Stops surges super fast (<25ms), meets top safety rules to protect machines.
2. Level-by-Level Shielding
Special shields guard different areas from big surges to small spikes.
3. Health Check Lights
Green/red lights show if working fine or needs changing now.
4. One-Size-Fits-All Install
Snaps onto standard rails, works in any building’s wiring system.