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Siemens 3RU1136-4DB0-ZX95 — Overload Relays

Siemens 3RU1136-4DB0-ZX95 SIRIUS Thermal Overload Relay, Cla

MPN3RU1136-4DB0-ZX95

Siemens SIRIUS thermal overload relay, size S2, Class 10, 55 mm width, screw-type terminals, ATEX certified.

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

3RU1136-4DB0-ZX95 — Identification
ParameterValue
Product brand nameSIRIUS
Product designationthermal overload relay
Frame size (overload relay)S2
Combinable contactor sizesS2
Reference code (IEC 81346-2)F
3RU1136-4DB0-ZX95 — Protection & Trip
ParameterValue
Overload current setting range18 ... 25 A
Trip classCLASS 10
3RU1136-4DB0-ZX95 — 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
3RU1136-4DB0-ZX95 — 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
3RU1136-4DB0-ZX95 — 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 (18 ... 3), 1x (18 ... 1)
Conductor range (AWG), auxiliary contacts2x (20 ... 16), 2x (18 ... 14)
3RU1136-4DB0-ZX95 — 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
3RU1136-4DB0-ZX95 — Mechanical
ParameterValue
Width55 mm
Height105 mm
Depth118 mm
3RU1136-4DB0-ZX95 — Specifications
ParameterValue
Type Of ProtectionDMT 98 ATEX G 001

Product details

It mounts directly onto a contactor, using the contactor mounting method, which means it shares the same DIN-rail footprint as the matching contactor — no extra panel space needed beyond the contactor's own width of 55 mm.

The screw-type terminals on both the main and auxiliary/control circuits accept a wide range of conductors: stranded wire from 0.75 to 35 mm² on the main circuit, and solid wire from 0.5 to 2.5 mm² on the auxiliary side. That covers most motor power and control wiring you'd see in a standard panel. The auxiliary contact ratings are given for several control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V. These are the switching capacities for the N/O and N/C auxiliary contacts that signal the trip condition back to the PLC or starter circuit. The relay is ATEX certified (DMT 98 ATEX G 001), which qualifies it for use in potentially explosive atmospheres — a key differentiator for applications in chemical, oil and gas, or grain handling where standard overloads won't pass muster.

Mounting and Clearance Notes

The relay mounts directly onto the contactor — no separate DIN-rail clip needed. Clearance requirements are tight: 0 mm upwards, forwards, backwards, and downwards from the relay body, with only 6 mm needed at the side. That means it can be packed into a panel with minimal air gap around it, as long as the contactor itself has adequate ventilation. The mounting position allows rotation of ±135° and tilting of ±45° front-to-back on a vertical surface, giving flexibility in panel layout. Shock resistance is rated at 8g for 10 ms, which is adequate for most industrial machinery but not for high-vibration applications like crushers or reciprocating compressors — those may need a separate vibration-dampened mounting.

Frequently asked questions

What compliance documentation is available for this part?

The relay carries ATEX certification (DMT 98 ATEX G 001) for explosive atmospheres, and its RoHS compliance date is July 1, 2006. The IP20 front protection and 6 kV surge voltage rating are also documented.

What wire sizes does the screw terminal accept?

The main circuit terminals accept stranded wire from 0.75 to 35 mm² (or 2x 0.75 to 25 mm²). The auxiliary/control circuit terminals accept solid wire from 0.5 to 1.5 mm² (2x) or 0.75 to 2.5 mm² (2x).

What are the auxiliary contact ratings?

The auxiliary contacts are rated 1 A at 24 V, 3 A at 120 V, 0.22 A at 125 V, 2 A at 230 V, and 1 A at 400 V. These are the switching capacities for signaling the trip condition.

MPN
3RU1136-4DB0-ZX95