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Siemens 3RU7116-1HB0 — Overload Relays

Siemens 3RU7116-1HB0 SIRIUS Thermal Overload Relay, 8 A, Cla

MPN3RU7116-1HB0

Siemens SIRIUS 3RU7116-1HB0, Size S00 thermal overload relay, 8 A rated current, Class 10 trip, screw terminals, IP20.

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

3RU7116-1HB0 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationThermal overload relay
Frame size (overload relay)S00
Combinable contactor sizesS00
3RU7116-1HB0 — Protection & Trip
ParameterValue
Overload current setting range5.5 ... 8 A
Trip classCLASS 10
Overload release typethermal
3RU7116-1HB0 — Electrical (main circuit)
ParameterValue
Rated operational current8 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)6.6 W
Per pole2.2 W
3RU7116-1HB0 — Auxiliary contacts
ParameterValue
Switching current at 24 V3 A
Switching current at 230 V2 A
3RU7116-1HB0 — 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)
3RU7116-1HB0 — Environmental
ParameterValue
Operating temperature-20 ... +55 °C
Transport temperature-25 ... +70 °C
Relative humidity, operating0 ... 90 %
Max. installation altitude2 000 m
3RU7116-1HB0 — Mechanical
ParameterValue
Width45 mm
Height87 mm
Depth78 mm

Product details

It mounts directly onto a S00 contactor (contactor mounting per) and protects a 3-phase motor circuit from sustained overcurrent.

At 8 A rated current, this relay covers the lower end of the S00 frame. It is rated for a 690 V main circuit, 50/60 Hz, and handles auxiliary contacts rated at 3 A at 24 V and 2 A at 230 V. The total typical power loss is 6.6 W — a figure to check against your enclosure's thermal budget. The relay is IP20 at the front and terminals, so it is suitable for enclosed panels only, not washdown areas.

Frequently asked questions

What are the key ratings for this overload relay?

Rated operational current 8 A, trip Class 10, rated voltage 690 V, frequency 50/60 Hz, auxiliary contact ratings 3 A at 24 V and 2 A at 230 V.

What is the physical size of the 3RU7116-1HB0?

Width 45 mm, height 87 mm, depth 78 mm. It is a Size S00 frame.

Does it drop into a panel designed for a 3RV1011-1HA10?

No — the 3RV1011-1HA10 is a motor-protective circuit breaker with a different footprint and function (overcurrent + short-circuit protection). The 3RU7116-1HB0 is a thermal overload relay that requires a contactor (S00 size) upstream for short-circuit protection. They are not direct drop-in replacements without rewiring.

MPN
3RU7116-1HB0