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Siemens 3RU1116-1FB1 — Overload Relays

Siemens 3RU1116-1FB1 SIRIUS Thermal Overload Relay, Size S00

MPN3RU1116-1FB1

Siemens SIRIUS 3RU1116-1FB1 thermal overload relay, Size S00, Class 10 trip, screw terminals, 45 mm wide, IP20 front, ATEX certified.

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

3RU1116-1FB1 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationthermal overload relay
Frame size (overload relay)S00
Combinable contactor sizesS00
3RU1116-1FB1 — Protection & Trip
ParameterValue
Overload current setting range3.5 ... 5 A
Trip classCLASS 10
3RU1116-1FB1 — Electrical (main circuit)
ParameterValue
Poles (main circuit)3
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
3RU1116-1FB1 — Auxiliary contacts
ParameterValue
Auxiliary contacts: NO1
Auxiliary contacts: NC1
Auxiliary contacts: CO (changeover)0
Auxiliary switch short-circuit protection (required fuse)fuse gL/gG: 6 A, quick: 10 A
Switching current at 24 V1 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
3RU1116-1FB1 — Connection & Mounting
ParameterValue
Mounting / fastening methodstand-alone installation
Mounting positionwith vertical mounting surface +/-135° rotatable, with vertical mounting surface +/- 45° tiltable to the front and back
Auxiliary/control circuit connection typescrew-type terminals
Conductor cross-section: solid2x (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 contacts1x (20 ... 16), 1x (18 ... 14), 1x 12
Conductor range (AWG), auxiliary contacts2x (20 ... 16), 2x (18 ... 14)
3RU1116-1FB1 — Environmental
ParameterValue
Operating temperature-20 ... +70 °C
Storage temperature-55 ... +80 °C
Transport temperature-55 ... +80 °C
Relative humidity, operating100 %
Max. installation altitude2 000 m
Shock resistance8g / 10 ms
3RU1116-1FB1 — Mechanical
ParameterValue
Width45 mm
Height87 mm
Depth78 mm
3RU1116-1FB1 — Specifications
ParameterValue
Type Of ProtectionDMT 98 ATEX G 001

Product details

It mounts standalone on a vertical surface with ±135° rotation and ±45° tilt front/back, giving panel builders flexibility to fit it into tight enclosures or odd-angle subpanels. The front is IP20 — touch-safe for the operator side — but the relay itself is not sealed against washdown; keep it inside a cabinet. At 45 mm wide, three of these side-by-side consume 135 mm of DIN rail — plan your gutter space accordingly.

Main and auxiliary circuits use screw-type terminals. The main contacts accept 1× 20–16 AWG, 1× 18–14 AWG, or 1× 12 AWG solid/stranded. Auxiliary contacts accept 2× 20–16 AWG or 2× 18–14 AWG. For finely stranded wire with ferrules, the range is 2× (0.5–1.5 mm²) and 2× (0.75–2.5 mm²). The auxiliary contact ratings cover the common control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V AC. At 110 V and 125 V the contact is rated 0.22 A — likely a DC rating for those voltages, so verify the load type before wiring a DC solenoid or contactor coil through it.

This relay lives in the SIRIUS S00 family, the smallest frame size. It carries ATEX approval (DMT 98 ATEX G 001).

Frequently asked questions

What is the depth of this overload relay?

The depth is 78 mm from the mounting surface to the front of the device.

What wire sizes does the 3RU1116-1FB1 accept?

Main contacts accept 1× 20–16 AWG, 1× 18–14 AWG, or 1× 12 AWG. Auxiliary contacts accept 2× 20–16 AWG or 2× 18–14 AWG. Finely stranded with ferrules: 2× (0.5–1.5 mm²) and 2× (0.75–2.5 mm²).

MPN
3RU1116-1FB1