TR-N2/3 thermal overload relay
Application
TR-N2/3 thermal overload relay are suitable for overload and phase-failure protection of AC motors with frequency of 50/60Hz, voltage up to 690V, current up to 0.15-45A under 8-hours duty or uninterrupted duty.
Functions provided by these relays, are phase-failure protection, temperature compensation, ON/OFF indication, Stop button, Test button and manual/automatic reset.
Applicable Standards
National Standard: GB 14048
International Standard: IEC 60947-4-1
The relays can be mounted onto contactors or installed as single units.
Operating Conditions
The altitude couldn t exceed 2000m.
Ambient temperature: -5 ~+55 degree centigrade and the average temperature no more than +35 degree centigrade in 24 hours.
Atmosphere: Comparative humidity no more than 50% at max +40 degree centigrade, and it may be higher at a lower temperature. The lowest average temperature no more than +20 degree centigrade in the wettest month.
The maximum average comparative humidity of this month could not exceed 90%, The change of temperature leading to dew on the product must be considered.
Class of pollution: Class 3.
The slope between installation surface and vertical surface could not exceed plus and minus 5 degree
Keeping away from explosive, corrosive and electric atomy.
Keeping dry.
The product should be used and installed at certain place without any shock, vibration etc.
Features
Three-phase thermal relays with release class 10.
With differential phase-failure protection.
With continuous current adjusting scale.
With temperature compensation.
With ON/OFF indicator.
With TEST (OFF) button.
With stop button.
With Manual/Auto reset button.
With Auxiliary contacts 1 NO+1 NC insulated each other.
Mounting: Plug in connection with contactor or install as a single unit.
|
Protection Characteristics |
|
Item |
NO. |
Times the
setting current |
|
Motion time |
Start condition |
Ambient temperature |
Three-phase
balance
motion time |
1 |
1.05 |
|
> 2h |
Cold state |
20 plus and minus 5 degree centigrade |
|
2 |
1.2 |
|
< 2h |
Heat state |
20 plus and minus 5 degree centigrade |
|
3 |
1.5 |
|
< 4min |
Cold state |
20 plus and minus 5 degree centigrade |
|
4 |
7.2 |
10A |
2s< Tp 10s 63 |
Cold state |
20 plus and minus 5 degree centigrade |
|
|
|
10A |
4s< Tp 10s > 63 |
Cold state |
20 plus and minus 5 degree centigrade |
Phase-losing
motion
characteristic |
|
Any two phases |
Another phase |
|
|
|
|
5 |
1.0 |
0.9 |
> 2h |
Cold state |
20 plus and minus 5 degree centigrade |
|
6 |
1.15 |
0 |
< 2h |
Heat state |
20 plus and minus 5 degree centigrade |
|
|
|
|
Fuse links A |
|
|
Number |
Select A |
Rated current A |
1 |
2 |
Aux contact structure |
|
TR-N2/3 |
5 |
4.0-6 |
25 |
16 |
Manual or
auto reset |
|
|
6.5 |
5.0-8 |
25 |
16 |
|
|
7.5 |
6.0-9 |
25 |
16 |
|
|
9 |
7.0-11 |
35 |
25 |
|
|
11 |
9.0-13 |
35 |
25 |
|
|
15 |
12-18 |
63 |
35 |
|
|
22 |
18-26 |
63 |
50 |
|
|
30 |
24-36 |
80 |
63 |
|
|
37 |
32-42 |
125 |
80 |
Zhejiang Huayang Electric Co., Ltd. Specializes in manufacturing the Electronic overload Relays, Thermal Overload Relays, Electronic Voltage Relays, Other Protection & Monitoring Devices, Current Transformers, Shunt and any other electrical equipments. After several years' development, Vaya has become a larger enterprise combining research, production, sales and after-sales service of electronic relay and is one of the famous manufacturers in China. All of our production procedures are strictly followed ISO 9001. We also get across safety certification such as CE, CB, UL, CCC, etc. We are sure that we can offer you the product with good quality as well as competitive price as we have advanced technology and prefect testing equipments, with Up-To-Date machines and production.
Thanks to the perfect character, good service, and high quality, our products are well sold both in domestic and oversea markets, and highly praised by the clients. With the principle of quality, technology and credit, we insist on "Talents Is Our Base, Technique is the Source of Enterprise Development". And always continually research and develop new products to meet the clients' need. Look forward to establishing a long term business relationship with you!
