Siemens SIRIUS 3RU7126-1HB0 thermal overload relay, S0 size, CLASS 10 trip class, rated operational current 8 A, operating voltage 690 V, 50/60 Hz, screw terminals, IP20 front and terminal.
| Parameter | Value |
|---|---|
| Product brand name | SIRIUS |
| Product designation | Thermal overload relay |
| Frame size (overload relay) | S0 |
| Combinable contactor sizes | S0 |
| Parameter | Value |
|---|---|
| Overload current setting range | 5.5 ... 8 A |
| Trip class | CLASS 10 |
| Overload release type | thermal |
| Parameter | Value |
|---|---|
| Rated operational current | 8 A |
| Poles (main circuit) | 3 |
| Rated operating frequency | 50 ... 60 Hz |
| Rated insulation voltage (AC, pollution degree 3) | 690 V |
| Rated surge withstand voltage | 6 kV |
| Main current circuit | screw-type terminals |
| Power loss at rated current (hot) | 6.6 W |
| Per pole | 2.2 W |
| Parameter | Value |
|---|---|
| Switching current at 24 V | 3 A |
| Switching current at 230 V | 2 A |
| Parameter | Value |
|---|---|
| Mounting / fastening method | Contactor mounting |
| Mounting position | with vertical mounting surface +/-135° rotatable, with vertical mounting surface +/- 45° tiltable to the front and back |
| Main-circuit connector arrangement | Top and bottom |
| Auxiliary/control circuit connection type | screw-type terminals |
| Conductor cross-section: solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Conductor cross-section: finely stranded with ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Parameter | Value |
|---|---|
| Operating temperature | -20 ... +55 °C |
| Transport temperature | -25 ... +70 °C |
| Relative humidity, operating | 0 ... 90 % |
| Max. installation altitude | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 97 mm |
| Depth | 96 mm |
The 3RU7126-1HB0: SIRIUS thermal overload relay, S0 frame, rated 8 A at 690 V AC/DC, 50/60 Hz. Trip class is CLASS 10.
Depth 96 mm, width 45 mm, height 97 mm. Side clearance to grounded parts: 6 mm minimum. Terminal accepts 2x (0.5…1.5 mm²) solid/stranded or 2x (0.75…2.5 mm²) with ferrule. Screw torque for main circuit: 2…2.5 N·m; auxiliary contacts: 0.8…1.2 N·m. Mounting position allows ±135° rotation and ±45° tilt on a vertical surface.
Current production.
CLASS 10, suitable for standard induction motor starting.
Depth 96 mm, width 45 mm, height 97 mm.
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