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Siemens 3RU2116-1HB0 — Overload Relays

Siemens 3RU2116-1HB0 SIRIUS Thermal Overload Relay, Size S00

MPN3RU2116-1HB0
Active

Siemens SIRIUS thermal overload relay, 3RU2116-1HB0, Size S00, CLASS 10 trip, 690 V rated, contactor mounting.

$27.94Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RU2116-1HB0 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationthermal overload relay
Frame size (overload relay)S00
Combinable contactor sizesS00
Reference code (IEC 81346-2)F
3RU2116-1HB0 — Protection & Trip
ParameterValue
Overload current setting range5.5 ... 8 A
Trip classCLASS 10
Overload release typethermal
3RU2116-1HB0 — Electrical (main circuit)
ParameterValue
Rated operational current8 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
3RU2116-1HB0 — 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
3RU2116-1HB0 — 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)
3RU2116-1HB0 — 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
3RU2116-1HB0 — Mechanical
ParameterValue
Width45 mm
Height76 mm
Depth70 mm

Product details

It mounts directly onto a contactor, making it a compact, integrated solution for motor starter assemblies in control panels. The relay is rated for a maximum of 690 V and carries motor power ratings of 3 kW at 400 V, 4 kW at 500 V, and 5.5 kW at 690 V. For current-based sizing, it handles 8 A at both 480 V and 600 V. The auxiliary switch is integrated into the housing, providing a single-pole changeover contact for signaling the tripped state — the front-mounted flag and the electrical contact both indicate the condition.

No need to hunt for surplus or worry about a looming end-of-life notice.

The relay fastens directly to a contactor via the contactor mounting method — no DIN rail required, though the contactor itself may be DIN-rail mounted. This saves panel space and reduces wiring between the overload and the contactor coil. Mounting position is unrestricted, so it can be placed horizontally, vertically, or at an angle without derating. Main circuit connections use screw-type terminals, accepting solid or stranded wire: 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²). The screwdriver tip required is Pozidriv PZ2 with a shaft diameter of 5 to 6 mm.

The relay includes temperature compensation from -40 to +60 °C, so the trip curve stays accurate across the working range. The MTTF with high demand rate is 2,280 years, reflecting the reliability of the electromechanical design. The substance prohibition date of 10/01/2009 indicates compliance with RoHS-like substance restrictions from that date forward.

Frequently asked questions

What does the note 'for message Tripped' mean?

The note indicates that the integrated auxiliary switch is wired to signal a 'Tripped' condition — typically a normally-closed contact that opens when the relay trips, providing a fault signal to a PLC or indicator light.

Will the 3RU2116-1HB0 drop into a panel specified for a 3RV1011-1HA10?

No, the 3RV1011-1HA10 is a circuit breaker (motor protection switch), not a thermal overload relay. The 3RU2116-1HB0 is a relay that mounts on a contactor, so it has a different footprint and wiring scheme. They are not direct drop-in replacements.

What compliance documentation is available for the 3RU2116-1HB0?

The substance prohibition date of 10/01/2009 indicates RoHS-like compliance from that date. As a Siemens SIRIUS product, it typically carries CE, UL, and CSA certifications, though specific approval marks are not listed in this evidence.

MPN
3RU2116-1HB0