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Siemens 3RU1136-4BD0 — Overload Relays

Siemens 3RU1136-4BD0 SIRIUS Thermal Overload Relay, CLASS 10

MPN3RU1136-4BD0

Siemens SIRIUS thermal overload relay, Size S2, 3-pole, CLASS 10, screw-type main terminals, Cage Clamp aux terminals, 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

3RU1136-4BD0 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationthermal overload relay
Frame size (overload relay)S2
Combinable contactor sizesS2
Reference code (IEC 81346-2)F
3RU1136-4BD0 — Protection & Trip
ParameterValue
Overload current setting range14 ... 20 A
Trip classCLASS 10
3RU1136-4BD0 — 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)10.5 W
Per pole3.5 W
3RU1136-4BD0 — 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
3RU1136-4BD0 — 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 typeCage Clamp terminals
Removable aux./control terminalNo
Conductor cross-section: solid2x (0.5 ... 2.5 mm²)
Conductor cross-section: finely stranded with ferrule2x (0.5 ... 1.5 mm²)
3RU1136-4BD0 — 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
3RU1136-4BD0 — Mechanical
ParameterValue
Width55 mm
Height105 mm
Depth118 mm
3RU1136-4BD0 — Specifications
ParameterValue
Type Of ProtectionDMT 98 ATEX G 001

Product details

The 3-pole main circuit uses screw-type terminals; the auxiliary and control circuit uses Cage Clamp terminals for tool-less wiring.

Trip Class 10 governs the thermal curve — this relay opens within 10 seconds on a locked-rotor condition, fast enough to protect most IEC frame motors without nuisance tripping on normal starting inrush. Shock resistance of 8g for 10 ms covers normal contactor switching vibration but not repeated hammering. The mounting position allows ±135° rotation and ±45° tilt from vertical, so it adapts to tight enclosures as long as the surface is vertical. 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 — enough to drive a PLC input or a small contactor coil. The 6 kV surge voltage resistance (rated value) ensures the auxiliary circuit holds up against switching transients from the main contactor. Power dissipation is 3.5 W per pole, so in a multi-relay cabinet, account for roughly 10.5 W total heat to avoid derating adjacent components. Wire ranges: solid conductors accept 2x (0.5 … 2.5 mm²); stranded accepts 2x (0.75 … 25 mm²) or single 0.75 … 35 mm². This covers most motor-circuit power wiring up to about 35 mm². The auxiliary circuit uses Cage Clamp terminals accepting 2x (0.5 … 1.5 mm²) finely stranded with ferrules, or 2x (20 … 14) AWG. Relative humidity up to 100% is allowed during operation — no derating for condensation as long as the IP20 front is respected.

The relay carries ATEX protection type DMT 98 ATEX G 001, certifying it for use in potentially explosive atmospheres (Group II, Category 2G). The substance prohibition date of 07/01/2006 aligns with RoHS compliance. These markings on the nameplate match what a quality doc control check expects for panel certification packs.

Frequently asked questions

Where can I buy the 3RU1136-4BD0 and get a price?

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.

What is the 3RU1136-4BD0's depth?

The depth is 118 mm. Combined with a width of 55 mm and height of 105 mm, it fits the standard SIRIUS S2 footprint for contactor-mounting.

What compliance documentation does the 3RU1136-4BD0 carry?

It carries ATEX certification DMT 98 ATEX G 001 for explosive atmospheres, and the substance prohibition date of 07/01/2006 indicates RoHS compliance. The reference code per IEC 81346-2 is F.

MPN
3RU1136-4BD0