Relay>>JR56 Series Thermal Relay
1.Application
JR56 series thermal relay is used in the circuit of 50/60Hz, rated insulation voltage 660V,rated current 0.3-95A for protecting the phase break when the electric motor is overloaded. Therelay has different mechanism and temperature compensation. It can be plugged in CJX3 seriesAC contactor. 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 conidition | 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 | |
3.Phase-losing Motion Characteristic
| No | Times the setting current | Motion time | Start condition | Ambient temperature | |
|---|---|---|---|---|---|
| Any two phases | Another phase | ||||
| 1 | 1.0 | 0.9 | >2h | Cold state | 20±5oC |
| 2 | 1.15 | 0 | <2h | Heat state(Following the No.1 test) | |
4.Specification
| Type | Setting range (A) | For contactor |
|---|---|---|
| JR56-20 | 0.3~0.5 | CJX3-10 CJX3-11 CJX3-12 CJX3-16 CJX3-18 CJX3-19 CJX3-25 |
| 0.6~1 | ||
| 1~1.6 | ||
| 1.5~2.5 | ||
| 2~3 | ||
| 3~5 | ||
| 4~6 | ||
| 4.8~8 |
| Type | Setting range (A) | For contactor |
|---|---|---|
| JR56-20 | 7.5~12 | |
| 12~18 | ||
| 20~28 | ||
| JR56-63 | 24~34 | CJX3-35 CJX3-50 CJX3-65 CJX3-80 |
| 25~40 | ||
| 28~62 | ||
| 48~80 | ||
| 60~95 |