Product Specifications
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
Product Description
1.Application
LR7 thermal relay is suitable for overload protection of AC motor operated on 8-hours duty oruninterupted duty. The overload protected AC motor with frequency 50Hz, voltage up to 660V,current up to 38A. Several functions provided by these relays are: phase-failure protection,temperature compensation. The product conforms to IEC60947-4-1 stardand.
2.Motion Characteristic: Three-phase Balance Motion Time
| No | Times of the setting current | Motion time | Start condition | Ambient temperature |
|---|
| 1 | 1.05 | >2h | Cold state | 20±5oC |
| 2 | 1.2 | <2h | Heat state (Following the No.1 test) |
| 3 | 1.5 | <4min |
| 4 | 7.2 | 10A | 2s < Tp ≤10s | ≤63A | Cold state |
| 10 | 4s < Tp ≤10s | >63A |
3.Specification
| Type | Setting range (A) |
|---|
| LR7-20 | 0.6~1.11 |
| 1.11~1.66 |
| 2.5~3.7 |
| 1.62~2.5 |
| 3.7~5.6 |
| 5.6~8.4 |
| 8.4~11.9 |
| 11.9~16 |
| 16~23 |
| 23~27 |
| 27~33 |
| 33~38 |
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Elecal Industrial Automation is Specializing in the manufacture and export of low-voltage and hight-voltage electrical products in China. Such as MCB, MCCB, ELCB, RCD, Contactor, Fuse, Relay, Switch, Distribution Box etc.
All the manufacturing process of the products is in strictly conformity to international IEC standard and we have established and perfected quality control procedures in accordance with ISO9001 international quality management system.
