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Siemens 3RU1116-1FB0-ZW98 — Overload Relays

Siemens 3RU1116-1FB0-ZW98 SIRIUS Thermal Overload Relay, Siz

MPN3RU1116-1FB0-ZW98

Siemens SIRIUS thermal overload relay, 3RU1116-1FB0-ZW98, Size S00, CLASS 10 trip, 3-pole, screw terminals, IP20 front, 78 mm depth.

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

3RU1116-1FB0-ZW98 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationthermal overload relay
Frame size (overload relay)S00
Combinable contactor sizesS00
Reference code (IEC 81346-2)F
3RU1116-1FB0-ZW98 — Protection & Trip
ParameterValue
Overload current setting range3.5 ... 5 A
Trip classCLASS 10
3RU1116-1FB0-ZW98 — 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
3RU1116-1FB0-ZW98 — 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
3RU1116-1FB0-ZW98 — Connection & Mounting
ParameterValue
Mounting / fastening methodContactor mounting
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
Removable aux./control terminalNo
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 contacts2x (20 ... 16), 2x (18 ... 14), 2x 12
Conductor range (AWG), auxiliary contacts2x (20 ... 16), 2x (18 ... 14)
3RU1116-1FB0-ZW98 — 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
3RU1116-1FB0-ZW98 — Mechanical
ParameterValue
Width45 mm
Height87 mm
Depth78 mm
3RU1116-1FB0-ZW98 — Specifications
ParameterValue
Type Of ProtectionDMT 98 ATEX G 001

Product details

Product Identification and Compliance

It provides CLASS 10 trip protection, meaning it will trip within 10 seconds at 7.2× the set current, per IEC 60947-4-1. This is the standard trip class for standard-duty motor starting applications where the motor accelerates to full speed within a few seconds. For audit and compliance documentation, the relay carries a reference code per IEC 81346-2 (F) and a substance prohibitance date of 07/01/2006, indicating RoHS compliance per the EU directive.

This relay is designed for contactor mounting (direct attachment to a matching SIRIUS contactor), not standalone DIN-rail mounting. The fastening method is specified as contactor mounting, so it shares the contactor's panel footprint. Dimensions are 45 mm width, 87 mm height, and 78 mm depth — the depth is the critical dimension for enclosure depth clearance when mounted on a contactor. Mounting position allows a vertical mounting surface with ±135° rotation and ±45° tilt forward/backward. This tight clearance means the relay can be stacked or mounted adjacent to other devices without additional spacing in most directions, though the 6 mm side gap should be maintained for heat dissipation.

Electrical Ratings and Wiring

The auxiliary/control circuit contact ratings are specified across multiple voltages: 1 A at 24 V, 0.22 A at 110 V, 3 A at 120 V, 0.22 A at 125 V, 0.11 A at 220 V, 2 A at 230 V, and 1 A at 400 V. These are the switching capacities for the auxiliary contacts, not the main motor circuit — the main circuit is protected by the overload relay's bimetallic strip and trip mechanism, with the auxiliary contacts carrying the signal to the contactor coil or PLC input. Power dissipation per pole is 2.2 W, totaling 6.6 W for all three poles under full load. This heat must be considered in enclosure thermal calculations, especially in sealed panels without forced ventilation. Wiring capacity: solid conductors accept 2x (0.5...1.5 mm²) and 2x (0.75...2.5 mm²); finely stranded with core end processing accepts the same ranges. AWG equivalents for main contacts are 2x (20...16), 2x (18...14), and 2x 12. Auxiliary contacts accept 2x (20...16) and 2x (18...14) AWG. These ranges cover standard motor control wiring from signal-level to power circuits.

The relay withstands shock of 8g for 10 ms, per the specified shock resistance. These ratings confirm the relay is suitable for standard industrial environments, including unheated warehouses during storage, but not for extreme vibration applications without additional damping. The relay carries ATEX approval type DMT 98 ATEX G 001, indicating suitability for use in potentially explosive gas atmospheres when installed in an appropriate enclosure and with proper external protection. This is a significant compliance credential for tender responses in oil/gas, chemical, or mining applications where ATEX certification is mandatory.

Frequently asked questions

What is the trip class of this overload relay?

The relay is rated CLASS 10, meaning it will trip within 10 seconds at 7.2× the thermal current setting. This is the standard class for general-purpose motor starting where acceleration time is under 10 seconds.

What are the mounting dimensions and clearances?

Dimensions are 45 mm width, 87 mm height, 78 mm depth. Clearances: 0 mm upwards, forwards, backwards, and downwards; 6 mm at the side. The relay mounts directly onto a SIRIUS contactor, not on a DIN rail.

What compliance documentation is available for this relay?

The relay carries ATEX approval DMT 98 ATEX G 001 for explosive gas atmospheres, RoHS compliance per substance prohibitance date 07/01/2006, and IP20 front protection. It is rated for 100% relative humidity and 6 kV surge voltage resistance.

MPN
3RU1116-1FB0-ZW98