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Siemens 3RU6116-0KB1 — Overload Relays

Siemens 3RU6116-0KB1 SIRIUS Overload Relay, 0.9-1.25 A

MPN3RU6116-0KB1

Siemens SIRIUS 3RU6116-0KB1 thermal overload relay, 0.9-1.25 A adjustable, Class 10, size S00, screw terminals, stand-alone installation.

Siemens 3RU6116-0KB1 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RU6116-0KB1 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationThermal overload relay
Combinable contactor sizesS00
3RU6116-0KB1 — Protection & Trip
ParameterValue
Overload current setting range0.9 ... 1.25 A
Trip classCLASS 10
Overload release typethermal
3RU6116-0KB1 — Electrical (main circuit)
ParameterValue
Rated operational current1.25 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
3RU6116-0KB1 — Auxiliary contacts
ParameterValue
Switching current at 24 V2 A
Switching current at 110 V0.22 A
Switching current at 230 V2 A
3RU6116-0KB1 — Connection & Mounting
ParameterValue
Mounting / fastening methodstand-alone installation
Mounting positionany
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)
Conductor range (AWG), main contacts2x (20 ... 16), 2x (20 ... 18), 2x 12
Conductor range (AWG), auxiliary contacts2x (20 ... 16), 2x (18 ... 14)
3RU6116-0KB1 — Environmental
ParameterValue
Operating temperature-40 ... +70 °C
Transport temperature-55 ... +80 °C
Relative humidity, operating0 ... 90 %
Max. installation altitude2 000 m
3RU6116-0KB1 — Mechanical
ParameterValue
Width45 mm
Height89 mm
Depth80 mm

Product details

Motor protection sizing and trip class

The 3RU6116-0KB1 is a SIRIUS thermal overload relay with an adjustable current response from 0.9 A to 1.25 A, covering small motor FLA in that band. Tightening torque for main contacts is 0.8-1.2 N·m.

Panel fit and contactor pairing

This relay is sized for the SIRIUS S00 contactor frame — it bolts directly to the matching S00 contactor without additional brackets. Dimensions are 45 mm wide, 89 mm high, 80 mm deep. Stand-alone installation is supported via the screw terminals on top and bottom. Required spacing to grounded parts at the side is 6 mm. Mounting position is any orientation. Per-pole loss is 1.9 W. The relay withstands 8g shock at 11 ms per IEC 60068-2-27. Maximum installation altitude is 2000 m above sea level. Ambient relative humidity during operation is 0-90%.

Frequently asked questions

How do I get current pricing and availability for 3RU6116-0KB1?

Submit an RFQ through this listing; the response will include current lead time and volume pricing from authorized distribution channels.

What compliance documentation does Siemens provide for 3RU6116-0KB1 (RoHS, REACH, UL, IEC)?

The relay has a substance prohibitance date of May 1, 2012, confirming RoHS compliance. It is designed to IEC 60947-4-1 standards for motor protection. The shock resistance rating follows IEC 60068-2-27. For specific UL/CSA certification files or REACH declarations, request them with your RFQ.

MPN
3RU6116-0KB1