Siemens 3RU1146-4JB0
MPN3RU1146-4JB0
Overload relay 45...63 A For motor protection Size S3, Class 10 Contactor mounting Main circuit: Screw terminal Auxiliary circuit: Screw terminal Manual-Automatic-Reset!!! Phased-out product!!! Successor is SIRIUS 3RU2 Preferred successor type is >>3RU2136-4JB0<<
$128.02Ref. 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 | thermal overload relay |
| Frame size (overload relay) | S3 |
| Combinable contactor sizes | S3 |
| Reference code (IEC 81346-2) | F |
Protection & Trip
| Parameter | Value |
|---|---|
| Overload current setting range | 45 ... 63 A |
| Trip class | CLASS 10 |
Electrical (main circuit)
| Parameter | Value |
|---|---|
| Poles (main circuit) | 3 |
| Rated insulation voltage (AC, pollution degree 3) | 1 000 V |
| Rated surge withstand voltage | 8 kV |
| Main current circuit | screw-type terminals |
| Power loss at rated current (hot) | 17.1 W |
| Per pole | 5.7 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 gL/gG: 6 A, quick: 10 A |
| Switching current at 24 V | 1 A |
| Switching current at 110 V | 0.22 A |
| Switching current at 120 V | 3 A |
| Switching current at 125 V | 0.22 A |
| Switching current at 220 V | 0.11 A |
| Switching current at 230 V | 2 A |
| Switching current at 400 V | 1 A |
Connection & Mounting
| 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 |
| Auxiliary/control circuit connection type | screw-type terminals |
| Removable aux./control terminal | No |
| Conductor cross-section: solid | 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) |
| Conductor range (AWG), auxiliary contacts | 2x (20 ... 16), 2x (18 ... 14) |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature | -20 ... +70 °C |
| Storage temperature | -55 ... +80 °C |
| Transport temperature | -55 ... +80 °C |
| Relative humidity, operating | 100 % |
| Max. installation altitude | 2 000 m |
| Shock resistance | 8g / 10 ms |
Mechanical
| Parameter | Value |
|---|---|
| Width | 70 mm |
| Height | 120 mm |
| Depth | 140 mm |
Specifications
| Parameter | Value |
|---|---|
| Type Of Protection | DMT 98 ATEX G 001 |
MPN
3RU1146-4JB0