Skip to main content
Log in
Siemens 3RU7116-1CB0 — Overload Relays

Siemens 3RU7116-1CB0 SIRIUS Thermal Overload Relay, 2.5 A, C

MPN3RU7116-1CB0

Siemens SIRIUS thermal overload relay, size S00, 3RU7116-1CB0, rated 2.5 A, trip class 10, IP20 front and terminal, screw terminals.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RU7116-1CB0 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationThermal overload relay
Frame size (overload relay)S00
Combinable contactor sizesS00
3RU7116-1CB0 — Protection & Trip
ParameterValue
Overload current setting range1.8 ... 2.5 A
Trip classCLASS 10
Overload release typethermal
3RU7116-1CB0 — Electrical (main circuit)
ParameterValue
Rated operational current2.5 A
Poles (main circuit)3
Rated operating frequency50 ... 60 Hz
Rated insulation voltage (AC, pollution degree 3)690 V
Rated surge withstand voltage6 kV
Main current circuitscrew-type terminals
Power loss at rated current (hot)5.7 W
Per pole1.9 W
3RU7116-1CB0 — Auxiliary contacts
ParameterValue
Switching current at 24 V3 A
Switching current at 230 V2 A
3RU7116-1CB0 — Connection & Mounting
ParameterValue
Mounting / fastening methodContactor mounting
Mounting positionwith vertical mounting surface +/-135° rotatable, with vertical mounting surface +/- 45° tiltable to the front and back
Main-circuit connector arrangementTop and bottom
Auxiliary/control circuit connection typescrew-type terminals
Conductor cross-section: solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section: finely stranded with ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
3RU7116-1CB0 — Environmental
ParameterValue
Operating temperature-20 ... +55 °C
Transport temperature-25 ... +70 °C
Relative humidity, operating0 ... 90 %
Max. installation altitude2 000 m
3RU7116-1CB0 — Mechanical
ParameterValue
Width45 mm
Height87 mm
Depth78 mm

Product details

The Siemens 3RU7116-1CB0 is a SIRIUS thermal overload relay in size S00, rated for a main circuit operational current of 2.5 A and a trip class 10. It mounts directly onto a contactor of matching size S00, saving DIN-rail space in the panel. The front and terminal areas carry IP20 protection, suitable for enclosed panel use.

Mounting is by contactor mounting — the relay fastens directly to a SIRIUS contactor of size S00, with no additional DIN-rail clip needed. The mounting position allows a vertical surface with ±135° rotation and ±45° tilt front-to-back. Screw-type terminals on both main and auxiliary circuits accept 2x (0.5 to 1.5 mm²) solid or stranded, or 2x (0.75 to 2.5 mm²). Dimensions are 45 mm wide, 87 mm tall, and 78 mm deep. Required spacing to grounded parts at the side is 6 mm.

Frequently asked questions

What are the key ratings of the 3RU7116-1CB0?

The relay is rated for a main circuit operational current of 2.5 A, trip class 10, maximum operating voltage 690 V AC/DC, and surge voltage resistance 6 kV. Power loss at rated current is 5.7 W total typical.

MPN
3RU7116-1CB0