The thermal overload relays are suitable for overload protection of AC motor operated on 8-hours duty or uninterrupted duty.
◆Application
The thermal overload relays are suitable for overload protection of AC motor operated on 8-hours duty or uninterrupted duty.The overload protected AC motor with frequency 50Hz.,Voltage up to 660V, current up to 40A.Series functions provided by these relays are phase-failure protection,temperature compensation,ON/OFF indication and manual/automatic reset.The relays comply with IEC60292-1 standard.
◆Specifications
Type | Plug in | Rated Current of | Setting Current |
CER8-12 | CEC8-10,CEC8-11 | 0.24,0.35,0.50.7.0.9.1.3 | 0.2-0.28,0.28-0.42,0.4-0.6,0.55-0.85, |
CER8-20 | CEC8-20,CEC8-21 | 2.1,2.5,3.6,5,6,9,11, | 1.7-2.1,2-3,2.8-4.4,4-6, |
CER8-60 | CEC8-50.CEC8-65 | 42,54 | 34-50,43-65 |
Thermal Element | Rated Setting | Motor Rated Capacity(KW) | ||
220-240V | 380~440V | 500-550W | ||
3 | 2~3~4 | 0.75 | 1.5 | 2.2 |
6 | 4~6~8 | 1.5 | 3.7 | 4.5 |
12 | 8-12~16 | 3.7 | 7.5 | 9 |
Operation characteristics
Code | Motion Current | Motion | Start State | Ambient | |
Am | 1 | 1.05 | >2h | Cold state | +20℃ |
2 | 1.2 | <2h | Heat state | ||
3 | 1.5 | <2min | Heat state | ||
4 | 72 | 2S-10S | Cold state | ||
Only | 1 | Three pole 1.0 | >2h | Cold state | +40℃ |
2 | Two pole | <2h | Heat state | ||
