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Siemens 3RU2116-1AC1 — Overload Relays

Siemens 3RU2116-1AC1 SIRIUS Thermal Overload Relay, Class 10

MPN3RU2116-1AC1
Active

Siemens SIRIUS thermal overload relay, 3RU2116-1AC1, size S00, Class 10, 690 V rated, spring-loaded terminals, 79 mm depth.

Siemens 3RU2116-1AC1 datasheet (PDF)
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

3RU2116-1AC1 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationthermal overload relay
Frame size (overload relay)S00
Combinable contactor sizesS00
Reference code (IEC 81346-2)F
3RU2116-1AC1 — Protection & Trip
ParameterValue
Overload current setting range1.1 ... 1.6 A
Trip classCLASS 10
Overload release typethermal
3RU2116-1AC1 — Electrical (main circuit)
ParameterValue
Rated operational current1.6 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)5.7 W
Per pole1.9 W
3RU2116-1AC1 — 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
3RU2116-1AC1 — Connection & Mounting
ParameterValue
Mounting / fastening methodstand-alone installation
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)
3RU2116-1AC1 — 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
3RU2116-1AC1 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth79 mm

Product details

Siemens 3RU2116-1AC1 SIRIUS Thermal Overload Relay

The Siemens 3RU2116-1AC1 is a SIRIUS-brand thermal overload relay, size S00, designed for motor protection in control panels. The relay mounts in any position and uses spring-loaded terminals for the main circuit, accepting 2x (0.5... 2.5 mm²) solid or stranded wire.

Rated insulation voltage is 690 V, with AC-3e rated maximum at the same 690 V — this relay is suitable for 400 V, 480 V, 500 V, and 690 V motor circuits. Motor power ratings are given at several voltages: 0.55 kW at 400 V, 0.75 kW at 500 V, and 1.1 kW at 690 V. The integrated auxiliary switch (one N/O + one N/C) carries 2 A at 24 V, 2 A at 230 V, 1 A at 400 V, and 3 A at 120 V — enough to signal a trip to a PLC input or drop out a contactor coil. Power loss per pole is 1.9 W, which matters for thermal buildup in a crowded panel.

Deployment Context

This relay is designed for stand-alone installation — it does not require a separate base or contactor mounting. Temperature compensation is active from -40 to +60 °C, so the trip curve stays accurate across the operating range of most industrial enclosures.

Frequently asked questions

What is the note 'for message Tripped' on this relay?

The note 'for message Tripped' indicates that the auxiliary switch integrated into the relay provides a signal contact that changes state when the overload relay trips, allowing a PLC or indicator to read the trip condition.

What is the depth of the 3RU2116-1AC1?

The depth is 79 mm.

Will 3RU2116-1AC1 drop into a panel specified around 3RU2116-1FC1 without rewiring?

Both relays share the same S00 frame size, mounting footprint, and main-circuit terminal layout, so the mechanical fit is identical. However, the auxiliary contact configuration may differ — verify the control wiring before swapping.

What compliance documentation does Siemens provide for 3RU2116-1AC1?

The part carries a substance prohibitance date of 10/01/2009, indicating RoHS compliance. Standard Siemens documentation includes the declaration of conformity for the applicable EU directives (Low Voltage, EMC) and the CE mark.

Where can I buy 3RU2116-1AC1 and get current pricing?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

MPN
3RU2116-1AC1