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Siemens 3RU6116-1BB0 — Overload Relays

Siemens 3RU6116-1BB0 Thermal Overload Relay, 1.4-2 A, S00

MPN3RU6116-1BB0

Siemens SIRIUS 3RU6116-1BB0 thermal overload relay, size S00, adjustable 1.4-2.0 A, Class 10 trip, screw terminals for main and auxiliary circuits.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RU6116-1BB0 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationThermal overload relay
Combinable contactor sizesS00
3RU6116-1BB0 — Protection & Trip
ParameterValue
Overload current setting range1.4 ... 2 A
Trip classCLASS 10
Overload release typethermal
3RU6116-1BB0 — Electrical (main circuit)
ParameterValue
Rated operational current2 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
3RU6116-1BB0 — Auxiliary contacts
ParameterValue
Switching current at 24 V2 A
Switching current at 110 V0.22 A
Switching current at 230 V2 A
3RU6116-1BB0 — Connection & Mounting
ParameterValue
Mounting / fastening methodContactor mounting
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)
3RU6116-1BB0 — Environmental
ParameterValue
Operating temperature-40 ... +70 °C
Transport temperature-55 ... +80 °C
Relative humidity, operating0 ... 90 %
Max. installation altitude2 000 m
3RU6116-1BB0 — Mechanical
ParameterValue
Width45 mm
Height76 mm
Depth70 mm

Product details

It protects a motor by monitoring current through the main circuit and tripping if overload persists — the adjustable release is set between 1.4 A and 2 A, which is the current range that governs fit for your motor's FLA.

This relay fastens directly onto a S00 contactor — no separate DIN-rail foot needed, which saves a slot in a crowded panel. Screw-type terminals on both the main and auxiliary circuits; the main circuit accepts 2× (0.5 to 1.5 mm²) solid or 2× (0.75 to 2.5 mm²) stranded, with a tightening torque of 0.8 to 1.2 N·m. The auxiliary circuit takes 2× (20–16) or 2× (18–14) AWG.

Electrical ratings and environment

Rated operational voltage is 690 V AC at 50/60 Hz, with a surge voltage resistance of 6 kV and an insulation voltage of 690 V at pollution degree 3. The control circuit draws 2 A at 24 V, 0.22 A at 110 V, and 2 A at 230 V — these are the coil currents for the contactor it mounts on, not the overload trip itself. Operating temperature range is -40 to +70 °C, with 0 to 90 % relative humidity; storage range is -55 to +80 °C. Shock resistance is 8 g for 11 ms per IEC 60068-2-27, and installation altitude max is 2000 m without derating.

Frequently asked questions

What is the adjustable current range of this overload relay?

The adjustable current response value is 1.4 to 2.0 A, set via a dial on the front. This is the range that must match your motor's full-load amperage.

What size contactor does this relay mount onto?

It is designed for size S00 contactors (Siemens SIRIUS 3RT1 series in that frame). The fastening method is direct contactor mounting — no separate base required.

What compliance documentation is available for this part?

The substance prohibitance date of 05/01/2012 indicates RoHS and REACH compliance. The relay is rated for 690 V insulation at pollution degree 3 and carries surge voltage resistance of 6 kV, consistent with IEC 60947-4-1 requirements for motor protection.

MPN
3RU6116-1BB0