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Siemens 3RT1373-6AR36 — Contactors

Siemens SIRIUS 3RT1373-6AR36 Contactor, S12, 250-500V AC Coi

MPN3RT1373-6AR36
Active

Siemens SIRIUS contactor, size S12, 3RT1373-6AR36, 250-500 V AC coil, screw terminals, 180 mm depth, 184 mm width, 225 mm height.

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

3RT1373-6AR36 — Identification
ParameterValue
Contactor frame sizeS12
3RT1373-6AR36 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V2 A
Rated value @ 230 V4 A
Rated value @ 24 V3 A
Rated value @ 110 V0.55 A
Rated value @ 220 V0.3 A
3RT1373-6AR36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz21 VA
Rated value @ 50 Hz250 ... 500 V
3RT1373-6AR36 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
3RT1373-6AR36 — Protection & Coordination
ParameterValue
Short-circuit coordination type 2, fusegG: 630 A (500 V, 100 kA)
Aux. switch short-circuit protection, fusegG: 10 A (690 V, 1 kA)
3RT1373-6AR36 — Connection & Mounting
ParameterValue
Main circuit connectionConnection bar
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid1x (1 ... 4mm²), 2x (1 ... 4mm²)
Conductor cross-section, solid or stranded1x (1 ... 4mm²), 2x (1 ... 4mm²)
Conductor cross-section, finely stranded w/ ferrule1x (0.75 ... 2.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew fixing
Side-by-side mountingYes
3RT1373-6AR36 — Environmental
ParameterValue
Operating temperature range-40 ... +60 °C
Storage temperature range-40 ... +70 °C
Installation altitude, max.2 000 m
3RT1373-6AR36 — Mechanical
ParameterValue
Width184 mm
Height225 mm
Depth180 mm
3RT1373-6AR36 — Specifications
ParameterValue
At AC45 ... 80 ms

Product details

Siemens SIRIUS 3RT1373-6AR36 — S12 Contactor, 250–500 V AC Coil

The contactor measures 225 mm high, 184 mm wide, and 180 mm deep, with screw fixing for vertical mounting surfaces — rotatable ±180° and tiltable ±30° forward/backward when at 0° rotation.

Coil and Switching Ratings

Coil pickup is guaranteed at 0.8x rated voltage; dropout occurs at 1.1x rated. Operating time is 45–80 ms on both AC and DC supplies. Rated operational current varies with voltage: 3 A at 24 V, 1.5 A at 48 V, 0.55 A at 110 V and 125 V, 0.3 A at 220 V, 4 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 2 A at 690 V. The contactor carries two instantaneous auxiliary contacts.

Up to two attachable auxiliary switch blocks can be added. The screw-fixing mount and generous clearance specs make panel layout straightforward — keep the forward gap at 20 mm for airflow and wiring access.

Frequently asked questions

What are the key dimensions of 3RT1373-6AR36?

Height 225 mm, width 184 mm, depth 180 mm. Minimum clearances: 10 mm up/down/sides, 20 mm forward.

What wire sizes does 3RT1373-6AR36 accept?

It accepts 1x or 2x conductors from 1 to 4 mm², solid or stranded.

Where can I buy 3RT1373-6AR36 and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Will 3RT1373-6AR36 drop into a panel specified for 3RT1266-6AP36-0KA1?

Both are SIRIUS contactors, but the 3RT1373-6AR36 is a larger S12 frame versus the smaller frame of the 3RT1266-6AP36-0KA1. Panel cutouts, mounting hole patterns, and clearance requirements differ — verify physical fit before substituting.

MPN
3RT1373-6AR36