Siemens 3RB3036-1UB0
MPN3RB3036-1UB0
Active
Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 10E Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset
$88.90Ref. price · indicative, final on quote
StockContact for availability
Lead timeCall for availability wk
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Product brand name | SIRIUS |
| Product designation | solid-state overload relay |
| Frame size (overload relay) | S2 |
| Combinable contactor sizes | S2 |
| Reference code (IEC 81346-2) | F |
Protection & Trip
| Parameter | Value |
|---|---|
| Overload current setting range | 12.5 ... 50 A |
| Trip class | CLASS 10E |
| Overload release type | electronic |
Electrical (main circuit)
| Parameter | Value |
|---|---|
| Rated operational current | 50 A |
| Poles (main circuit) | 3 |
| Rated operating frequency | 50 ... 60 Hz |
| Rated insulation voltage (AC, pollution degree 3) | 690 V |
| Rated value (AC-3e), max. | 690 V |
| Rated surge withstand voltage | 6 kV |
| Main current circuit | screw-type terminals |
| Power loss at rated current (hot) | 1.8 W |
| Per pole | 0.6 W |
Auxiliary contacts
| Parameter | Value |
|---|---|
| Auxiliary contacts: NO | 1 |
| Auxiliary contacts: NC | 1 |
| Auxiliary contacts: CO (changeover) | 0 |
| Auxiliary switch short-circuit protection (required fuse) | fuse gG: 6 A |
| Switching current at 24 V | 2 A |
| Switching current at 60 V | 0.55 A |
| Switching current at 110 V | 0.3 A |
| Switching current at 120 V | 4 A |
| Switching current at 125 V | 0.3 A |
| Switching current at 220 V | 0.11 A |
| Switching current at 230 V | 3 A |
Connection & Mounting
| Parameter | Value |
|---|---|
| Mounting / fastening method | Contactor mounting |
| Mounting position | any |
| Main-circuit connector arrangement | Top and bottom |
| Auxiliary/control circuit connection type | screw-type terminals |
| Removable aux./control terminal | Yes |
| Conductor cross-section: solid | 1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²) |
| Conductor cross-section: solid or stranded | 1x (0,5 ... 4 mm²), 2x (0,5 ... 2,5 mm²) |
| Conductor cross-section: finely stranded with ferrule | 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²) |
| Conductor range (AWG), auxiliary contacts | 1x (20 ... 14), 2x (20 ... 14) |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature | -25 ... +60 °C |
| Storage temperature | -40 ... +80 °C |
| Transport temperature | -40 ... +80 °C |
| Relative humidity, operating | 10 ... 95 % |
| Max. installation altitude | 2 000 m |
| Shock resistance | 15g / 11 ms |
Mechanical
| Parameter | Value |
|---|---|
| Width | 55 mm |
| Height | 99 mm |
| Depth | 104 mm |
MPN
3RB3036-1UB0