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Siemens 3RU2116-1FB0 — Overload Relays

Siemens 3RU2116-1FB0 SIRIUS thermal overload relay, CLASS 10

MPN3RU2116-1FB0
Active

Siemens SIRIUS thermal overload relay, 3RU2116-1FB0, CLASS 10, rated 690 V, size S00, screw terminals.

$27.94Ref. price · indicative, final on quote
Siemens 3RU2116-1FB0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RU2116-1FB0 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationthermal overload relay
Frame size (overload relay)S00
Combinable contactor sizesS00
Reference code (IEC 81346-2)F
3RU2116-1FB0 — Protection & Trip
ParameterValue
Overload current setting range3.5 ... 5 A
Trip classCLASS 10
Overload release typethermal
3RU2116-1FB0 — Electrical (main circuit)
ParameterValue
Rated operational current5 A
Poles (main circuit)3
Rated operating frequency50 ... 60 Hz
Rated insulation voltage (AC, pollution degree 3)690 V
Rated value (AC-3e), max.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
3RU2116-1FB0 — Auxiliary contacts
ParameterValue
Auxiliary contacts: NO1
Auxiliary contacts: NC1
Auxiliary contacts: CO (changeover)0
Auxiliary switch short-circuit protection (required fuse)fuse gG: 6 A, quick: 10 A
Switching current at 24 V2 A
Switching current at 60 V0.3 A
Switching current at 110 V0.22 A
Switching current at 120 V3 A
Switching current at 125 V0.22 A
Switching current at 220 V0.11 A
Switching current at 230 V2 A
Switching current at 400 V1 A
3RU2116-1FB0 — Connection & Mounting
ParameterValue
Mounting / fastening methodContactor mounting
Mounting positionany
Main-circuit connector arrangementTop and bottom
Auxiliary/control circuit connection typescrew-type terminals
Removable aux./control terminalNo
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 (18 ... 14), 2x 12
Conductor range (AWG), auxiliary contacts2x (20 ... 16), 2x (18 ... 14)
3RU2116-1FB0 — Environmental
ParameterValue
Operating temperature-40 ... +70 °C
Storage temperature-55 ... +80 °C
Transport temperature-55 ... +80 °C
Relative humidity, operating10 ... 95 %
Max. installation altitude2 000 m
3RU2116-1FB0 — Mechanical
ParameterValue
Width45 mm
Height76 mm
Depth70 mm

Product details

The auxiliary switch is integrated, with contact ratings across multiple voltages: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, and 0.75 A at 690 V, among others.

Terminal capacity is 2x (0.5 to 1.5 mm²) solid or stranded, or 2x (0.75 to 2.5 mm²).

The note for message 'Tripped' is a diagnostic output — the relay's integrated auxiliary switch changes state when the overload trips, so a PLC or indicator can pick it up. Power dissipation per pole is 2.2 W. MTTF with high demand rate is 2,280 years.

Frequently asked questions

What are the auxiliary contact ratings?

The integrated auxiliary switch is rated 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, and 0.75 A at 690 V, among other voltages.

What is the trip class of this overload relay?

It is CLASS 10, meaning it will trip within 10 seconds at 7.2× the current setting.

What is the physical size and mounting?

Size S00, dimensions 45 mm wide × 76 mm high × 70 mm deep. Mounts directly to a contactor via M3 screws, in any position.

MPN
3RU2116-1FB0