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Siemens 3RU2116-0BC0 — Overload Relays

Siemens 3RU2116-0BC0 SIRIUS Thermal Overload Relay, Trip Cla

MPN3RU2116-0BC0
Active

Siemens SIRIUS thermal overload relay, size S00, 3RU2116-0BC0, Trip Class 10, 690 V rated, auxiliary contact 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, spring-loaded terminals, contactor mounting.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RU2116-0BC0 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationthermal overload relay
Frame size (overload relay)S00
Combinable contactor sizesS00
Reference code (IEC 81346-2)F
3RU2116-0BC0 — Protection & Trip
ParameterValue
Overload current setting range0.14 ... 0.2 A
Trip classCLASS 10
Overload release typethermal
3RU2116-0BC0 — Electrical (main circuit)
ParameterValue
Rated operational current0.2 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 circuitspring-loaded terminals
Power loss at rated current (hot)4.8 W
Per pole1.6 W
3RU2116-0BC0 — 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
3RU2116-0BC0 — Connection & Mounting
ParameterValue
Mounting / fastening methodContactor mounting
Mounting positionany
Main-circuit connector arrangementTop and bottom
Auxiliary/control circuit connection typespring-loaded terminals
Removable aux./control terminalNo
Conductor cross-section: solid or stranded2x (0.5 ... 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 ... 12)
Conductor range (AWG), auxiliary contacts2x (20 ... 14)
3RU2116-0BC0 — 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
3RU2116-0BC0 — Mechanical
ParameterValue
Width45 mm
Height87 mm
Depth70 mm

Product details

It is Trip Class 10, meaning it will trip within 10 seconds at a 7.2× current overload — the standard for standard-duty induction motors on pumps, fans, and conveyors where starting time is under 10 seconds. The integrated auxiliary switch provides status feedback: normally-open contact rated 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V — enough to signal a PLC input or drop out a contactor coil directly. The relay mounts directly onto the contactor (fastening method: contactor mounting), saving panel space and wiring. Termination is via spring-loaded terminals accepting 2x (0.5... 2.5 mm²) solid or stranded wire — no screw torque to verify, which speeds panel assembly.

The auxiliary contact's 400 V rating at 1 A is the AC-15 inductive load figure; at 120 V it handles 3 A, enough for a 120 V contactor coil. The note 'for message Tripped' on the relay indicates that the auxiliary contact position changes only when the overload relay has tripped — it does not change on manual test or reset. This is important for the control logic designer: the PLC sees a trip signal, not a test signal. Dimensions: 87 mm high, 45 mm wide, 70 mm deep — the S00 footprint matches the Siemens 3RT2 contactor series. The 70 mm depth fits standard 80 mm deep enclosures with clearance for wiring.

Frequently asked questions

What is the note 'for message Tripped' on the 3RU2116-0BC0?

The auxiliary contact changes state only when the overload relay has tripped due to an overload or phase failure — it does not change on manual test or reset. This prevents false trip signals during commissioning testing.

What are the auxiliary contact ratings on the 3RU2116-0BC0?

The normally-open auxiliary contact is rated 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V. These cover both PLC input and contactor coil switching.

Where can I buy the 3RU2116-0BC0?

Sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
3RU2116-0BC0