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Siemens 3RT2027-2XJ40-0LA2 — Contactors

Siemens 3RT2027-2XJ40-0LA2 SIRIUS Contactor, S0, 45mm

MPN3RT2027-2XJ40-0LA2
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Siemens SIRIUS 3RT2027-2XJ40-0LA2 contactor, size S0, 45 mm width, screw and snap-on DIN rail mounting, spring-type terminals.

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

3RT2027-2XJ40-0LA2 — Identification
ParameterValue
Contactor frame sizeS0
3RT2027-2XJ40-0LA2 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V22 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V5 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2027-2XJ40-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2027-2XJ40-0LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT2027-2XJ40-0LA2 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 125A (690V,100kA), aM: 50A (690V,100kA), BS88: 125A (415V,80kA)
Short-circuit coordination type 2, fusegG: 50A (690V,100kA), aM: 25A (690V, 100kA), BS88: 50A (415V, 80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2027-2XJ40-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (1 ... 10 mm²)
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2027-2XJ40-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2027-2XJ40-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2027-2XJ40-0LA2 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth107 mm

Product details

SIRIUS S0 contactor for panel integration

With a width of 45 mm, it fits standard DIN-rail panel layouts and leaves room for adjacent devices in the same row. The coil termination uses spring-type terminals, which speeds wiring compared to screw clamps. Main contact connections accept solid conductors from 1 to 10 mm² (2x) and stranded from 0.5 to 2.5 mm² (2x).

Mounting clearances and position

These spacings ensure adequate cooling and arc clearance for the S0 frame. This flexibility helps when orienting the contactor in tight enclosures.

The contactor is rated for DC coil voltage with a rated value of 72 V DC. Maximum switching frequency: 750 operations per hour for AC-1, AC-2, AC-3, and AC-3e duty; 250 operations per hour for AC-4. This suits moderate-speed cycling applications like conveyor controls or pump starters.

Auxiliary contacts and DC switching ratings

DC switching ratings for the auxiliary contacts at 24 V: 10 A; at 48 V: 2 A; at 60 V: 2 A; at 110 V: 1 A; at 125 V: 0.9 A; at 220 V: 0.3 A; at 400 V: 3 A. These values govern the DC load the auxiliary contacts can break.

This product carries a current lifecycle stage from the manufacturer.

Frequently asked questions

Where can I buy 3RT2027-2XJ40-0LA2?

This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing.

What is the width of 3RT2027-2XJ40-0LA2?

The width is 45 mm, fitting the S0 frame size.

What temperature range does this contactor support?

Operating temperature is -40 to +70 °C; storage temperature is -55 to +80 °C.

MPN
3RT2027-2XJ40-0LA2