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Siemens 3RT2027-1NB30-ZX95 — Contactors

Siemens 3RT2027-1NB30-ZX95 SIRIUS Power Contactor, S0 Size

MPN3RT2027-1NB30-ZX95
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Siemens SIRIUS power contactor, S0 size, 24 VDC coil, screw-type terminals, 3RT2027-1NB30-ZX95.

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

3RT2027-1NB30-ZX95 — Identification
ParameterValue
Contactor frame sizeS0
3RT2027-1NB30-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 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2027-1NB30-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.86
Rated value @ 50 Hz21 ... 28 V
3RT2027-1NB30-ZX95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2027-1NB30-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)
3RT2027-1NB30-ZX95 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2027-1NB30-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2027-1NB30-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2027-1NB30-ZX95 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth107 mm
3RT2027-1NB30-ZX95 — Specifications
ParameterValue
At AC30 ... 50 ms

Product details

It carries a 24 VDC coil (rated value 21...28 V) with screw-type terminals on both coil and main contacts — field-serviceable with standard tools, no special crimper needed. Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward — handy when you're wedging this into a crowded panel on site.

Coil draw and switching cycles

Inrush current peak at 24 V rated value is 10 A, holding at 1.3 A full-scale — that's the sealed current. The coil power factor sits at 0.86 at 50 Hz, 0.82 at 60 Hz. Arcing time is tight at 10 ms, and operating times run 30...50 ms on AC, 35...50 ms on DC. Mechanical life of the contactor is typical 10 million operations. Maximum switching rates vary by duty: AC-1 (resistive) at 1,000 cycles/hour, AC-3 (motor start/run) at 750 cycles/hour, AC-4 (plugging/inching) at 250 cycles/hour. The AC-3e rating also sits at 750 cycles/hour.

Wiring and clearances

Auxiliary contacts take 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) solid or stranded. Overall dimensions are 85 mm height, 45 mm width, 107 mm depth — the depth figure matters when you're checking gland-plate clearance in a shallow enclosure.

Frequently asked questions

What is the depth of 3RT2027-1NB30-ZX95?

The depth is 107 mm. Combined with 85 mm height and 45 mm width, it fits the S0 frame footprint common in IEC panel layouts.

Where can I buy 3RT2027-1NB30-ZX95 and how is it quoted?

This contactor is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position.

What wire sizes does the 3RT2027-1NB30-ZX95 accept?

Main contacts accept 1...10 mm² solid or stranded. Auxiliary contacts accept 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) solid or stranded. All terminals are screw-type.

MPN
3RT2027-1NB30-ZX95