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Siemens 3RT1045-1AF00-ZX95 — Contactors

Siemens 3RT1045-1AF00-ZX95 SIRIUS Contactor, 45 kW at 500 V

MPN3RT1045-1AF00-ZX95

Siemens SIRIUS power contactor, 3RT1045-1AF00-ZX95, Size S3, 45 kW at 500 V AC-3, screw terminals, snap-on mounting.

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

3RT1045-1AF00-ZX95 — Identification
ParameterValue
Contactor frame sizeS3
3RT1045-1AF00-ZX95 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V66 A
Rated value @ 400 V3 A
Rated value @ 500 V45 kW
Rated value @ 690 V21.1 kW
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
3RT1045-1AF00-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1045-1AF00-ZX95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1045-1AF00-ZX95 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 250 A
Short-circuit coordination type 2, fusefuse gL/gG: 160 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1045-1AF00-ZX95 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, solid or stranded2x (2.5 ... 16 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 and 75 mm standard mounting rail
Side-by-side mountingYes
3RT1045-1AF00-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1045-1AF00-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1045-1AF00-ZX95 — Mechanical
ParameterValue
Width70 mm
Height146 mm
Depth139 mm
3RT1045-1AF00-ZX95 — Specifications
ParameterValue
At AC10 ... 25 ms

Product details

Sourcing & Fit

The front has IP20 protection with the cover or box terminal installed; the terminal area itself is IP00. Wire ranges: solid accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). Stranded accepts 2x (10 to 50 mm²). The contactor is rated for 50 Hz operation, with a rated operational voltage of 110 V at 50 Hz.

Panel Integration

Dimensions are 146 mm high, 70 mm wide, 139 mm deep. The S3 frame size is a common footprint in SIRIUS, so it shares a hole pattern and rail space with other S3 accessories like overload relays and auxiliary contact blocks. Switching frequency limits: 900 cycles/hour at AC-1, 400 at AC-2, 1000 at AC-3, 300 at AC-4. Coil draw at 24 V rated value is 10 A, at 60 V is 2 A, at 110 V is 1 A, at 220 V is 0.3 A.

This contactor carries a RoHS substance prohibition date of May 1, 2012, indicating compliance with the RoHS directive. The SIRIUS series is typically UL/CSA listed and CE marked, though specific certification markings for this variant should be verified on the nameplate.

Frequently asked questions

What compliance documentation does this contactor carry?

The part has a RoHS compliance date of May 1, 2012. As a Siemens SIRIUS product, it typically meets UL, CSA, and CE requirements, though specific certifications should be checked on the unit's nameplate or via the manufacturer's declaration of conformity.

MPN
3RT1045-1AF00-ZX95