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Siemens 3RT2027-2BB44-ZX95 — Contactors

Siemens SIRIUS 3RT2027-2BB44-ZX95 Power Contactor, 24 VDC Co

MPN3RT2027-2BB44-ZX95
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Siemens SIRIUS power contactor, 3RT2027-2BB44-ZX95, S0 frame, 24 VDC coil, spring-type terminals, screw and snap-on mounting for 35 mm DIN rail.

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

3RT2027-2BB44-ZX95 — Identification
ParameterValue
Contactor frame sizeS0
3RT2027-2BB44-ZX95 — 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 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2027-2BB44-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2027-2BB44-ZX95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2027-2BB44-ZX95 — 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)
3RT2027-2BB44-ZX95 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid1 ... 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
3RT2027-2BB44-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2027-2BB44-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2027-2BB44-ZX95 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth154 mm

Product details

Switching ratings and operating cycle

AC-4 duty (plugging/reversing) is limited to 250 ops/h — a real constraint if your application involves frequent inching or reversing. Coil pickup is 0.8 x rated voltage (19.2 VDC), dropout below that threshold.

Coil and auxiliary contact ratings

The 24 VDC coil draws 6 A at rated voltage, dropping to lower hold-in current. Auxiliary contact ratings are provided for DC switching at various voltages: 2 A at 48 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. No built-in auxiliary switch block is included — order separately if needed.

Environmental and mechanical specs

Depth is 154 mm, width 45 mm, height 102 mm.

Frequently asked questions

Where can I buy 3RT2027-2BB44-ZX95 and get a price?

This part is sourced through independent distribution and quoted to order against an RFQ. Contact us with your quantity and target delivery window for a current price and availability check.

What is the depth of 3RT2027-2BB44-ZX95?

The depth is 154 mm, with a width of 45 mm and height of 102 mm.

What wire sizes does the spring-type terminal accept?

The main contact terminals accept solid or stranded wire from 1 to 10 mm². The coil terminals accept 2x (0.5 to 2.5 mm²) solid or stranded.

MPN
3RT2027-2BB44-ZX95