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Siemens 3RT1336-3XF40-0LA2 — Contactors

Siemens 3RT1336-3XF40-0LA2 SIRIUS Power Contactor, S2, 110 V

MPN3RT1336-3XF40-0LA2

Siemens SIRIUS power contactor, size S2, 3RT1336-3XF40-0LA2, 110 VDC coil with varistor surge suppression, screw-type main terminals, spring-loaded auxiliary terminals, 11 kW at AC-2 400 V.

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

3RT1336-3XF40-0LA2 — Identification
ParameterValue
Contactor frame sizeS2
3RT1336-3XF40-0LA2 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1336-3XF40-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1336-3XF40-0LA2 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
3RT1336-3XF40-0LA2 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 160 A
Short-circuit coordination type 2, fusefuse gL/gG: 63 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1336-3XF40-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0.75 ... 16 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1336-3XF40-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1336-3XF40-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1336-3XF40-0LA2 — Mechanical
ParameterValue
Width73 mm
Height142 mm
Depth130 mm

Product details

It carries an 11 kW rating at AC-2 duty on 400 V, which means it handles slip-ring motor starting and reversing loads up to that power level — the AC-2 category covers wound-rotor motors where the inrush is moderate but the switching frequency can be higher than a standard AC-3 contactor. The 110 VDC coil includes a built-in varistor surge suppressor, so you don't need an external RC snubber for coil suppression on DC control circuits.

Side-by-side mounting is supported, so multiple contactors pack tightly in a row without derating. Overall dimensions: 142 mm high, 73 mm wide, 130 mm deep — the S2 frame fits standard 200 mm deep enclosures with headroom for wiring ducts.

Main current circuit uses screw-type terminals accepting 2x (0.75 … 16 mm²) solid or stranded, or AWG 2x (18 … 2). The auxiliary and control circuit uses spring-loaded terminals — no screw tightening needed for the signal wiring, which speeds up panel assembly. Solid wire range for auxiliaries: 2x (0.25 … 2.5 mm²); stranded: 2x (0.75 … 25 mm²). The dual-conductor capacity on each terminal is useful when daisy-chaining control power through multiple contactors.

Auxiliary contact switching capacity

The built-in auxiliary contacts (instantaneous, 0 delayed) handle: 10 A at 24 VDC, 2 A at 60 VDC, 1 A at 110 VDC, 0.3 A at 220 VDC, 6 A at 230 VAC, 3 A at 400 VAC. These are the make/break ratings for the contact block — stay within these curves for reliable DC switching, especially at the higher voltages where arc extinction is harder. The arcing time runs 10 … 15 ms; the DC break time is 15 … 30 ms depending on the circuit time constant.

Operating temperature range: -40 … +70 °C; storage range: -55 … +80 °C. The substance prohibition date of 05/01/2012 aligns with RoHS compliance for the European directive. The varistor design of the surge suppressor means the coil suppression is built in — no separate suppressor module to order.

Frequently asked questions

Where can I buy 3RT1336-3XF40-0LA2 and get a price?

This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — both are confirmed at quote time.

What compliance documentation does Siemens provide for this contactor?

The part carries a substance prohibition date of 05/01/2012, indicating RoHS compliance. The SIRIUS series typically provides CE, UL, CSA, and IEC declarations — verify specific certifications against your project requirements at quote time.

MPN
3RT1336-3XF40-0LA2