3-phase thermal overload relay for AC motors, overcurrent and phase failure protection functions. Optional current setting range 55-70 Amp or 60-80 Amp, rated current 93A, working voltage rating 220V~690V, matched with 40A contactor, 100/125A gG or 63/80A aM fuse breaker.
Specification
| Model | CHN-JR28-93 |
| Current Setting Range (A) | 48-65 | 55-70 | 60-80 |
| Matching Fuse Breaker (A) | 100 gG | 125 gG | 125 gG |
| 63 aM | 80 aM | 80 aM |
| Matching Contactor | 40A |
| Rated Working Current (A) | 93A |
| Rated Working Voltage (V) | 3-phase 220V~690V |
| Rated Insulation Voltage (V) | 690V |
| Number of Contacts | 1NO + 1NC |
| Phase Failure Protection Function | yes |
| Automatic & Manual Reset | yes |
| Temperature Compensation | yes |
| Tripping Indicator | yes |
| Test Pushbutton | yes |
| Mounting Mode | Plug-in, independent |
| AC-15 220V Current Rating (A) | 2.73 |
| AC-15 220V Current Rating (A) | 1.58 |
| DC-13 220V Current Rating (A) | 0.2 |
| Cross Section Area of Conductor (mm2) | Main Circuit | Single core or standard wire | 4~35 |
| Wiring screw | M4 |
| Auxiliary Circuit | Single core or standard wire | 0.5~2.5 |
| Wiring screw | M3.5 |
Thermal Overload Relay Applications
- Thermal overload relays are often used in circuit protection, overload, phase failure, overtime start and locked-rotor for AC motors.
- Thermal overload relay has functions of phase failure protection, temperature compensation, adjustable setting current, automatic or manual reset, operation indicator, NP and NO auxiliary contacts separate insulation.
- The thermal overload relay has small installation area and various mounting methods. It has test button and stop button, which is convenient for checking the flexibility of operation.
- The protective cover of thermal overload relay can protect fingers from electric shock. The locking device can prevent misoperation.
- Thermal overload relay comes with remote operation, complete functions and excellent quality.
60/70/80 Amp Thermal Overload Relay Dimension Diagram (Unit: mm)

Good price 3-phase thermal overload relay for sale, features overcurrent and phase failure protection functions. Current setting range 55-70 Amp/ 60-80 Amp for selection, current rating 93A, working voltage 220V~690V, insulation voltage 690V, matched with 40A contactor and 100/125A gG fuse breaker.