Rated operational current of 3.2 A sets the motor full-load current range this relay protects — match it to the motor nameplate FLA. Screw-type terminals on both main and auxiliary circuits accept 2× (0.5…1.5 mm²) solid/stranded or 2× (0.75…2.5 mm²) finely stranded with ferrules, so it fits standard control wiring without special tooling. The relay mounts directly onto a S00-size contactor (fastening method: contactor mounting), saving DIN-rail space and reducing wiring between the contactor and overload.
Siemens SIRIUS 3RU7116-1DB0 Thermal Overload Relay, 3.2 A, C
MPN3RU7116-1DB0
Siemens SIRIUS thermal overload relay, 3RU7116-1DB0, size S00, 3.2 A rated operational current, Trip Class 10, screw-type terminals, contactor mounting.
Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Product brand name | SIRIUS |
| Product designation | Thermal overload relay |
| Frame size (overload relay) | S00 |
| Combinable contactor sizes | S00 |
| Parameter | Value |
|---|---|
| Overload current setting range | 2.2 ... 3.2 A |
| Trip class | CLASS 10 |
| Overload release type | thermal |
| Parameter | Value |
|---|---|
| Rated operational current | 3.2 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) | 5.7 W |
| Per pole | 1.9 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 | 87 mm |
| Depth | 78 mm |
Product details
Frequently asked questions
What are the key ratings for this overload relay?
Rated operational current 3.2 A, rated voltage 690 V, Trip Class 10, size S00. It mounts directly onto a S00 contactor and uses screw-type terminals.
What compliance documentation is available for 3RU7116-1DB0?
The relay carries UL, CSA, and CE approvals as standard for the SIRIUS line. RoHS and REACH declarations are provided with the shipment.
MPN
3RU7116-1DB0