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Siemens 3RT2045-1AR64 — Contactors

Siemens 3RT2045-1AR64 SIRIUS Power Contactor, S3 Frame, 15 h

MPN3RT2045-1AR64
Active

Siemens SIRIUS power contactor, 3RT2045-1AR64, S3 frame size, screw-type terminals, 15 hp at 230 V, AC-3 switching rate 1000 1/h.

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

3RT2045-1AR64 — Identification
ParameterValue
Contactor frame sizeS3
3RT2045-1AR64 — 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 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V15 hp
Rated value @ 24 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2045-1AR64 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.35
Rated value @ 50 Hz400 V
3RT2045-1AR64 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2045-1AR64 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)
Short-circuit coordination type 2, fusegG: 160A (690V,100kA), aM: 80A (690V,100kA), BS88: 125A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2045-1AR64 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2.5 ... 16 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 standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2045-1AR64 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2045-1AR64 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2045-1AR64 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth195 mm
3RT2045-1AR64 — Specifications
ParameterValue
At AC10 ... 21 ms

Product details

It mounts via screw fixing 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 — useful when fitting into tight enclosures or existing bus layouts.

Rated 15 hp at 230 V, this contactor handles typical 3-phase induction motors in that power band — think small conveyors, pumps, or fans in a food-and-beverage line. The AC-3 maximum switching rate of 1 000 1/h means it cycles a motor load about once every 3.6 seconds continuously; that's fast enough for most cyclic applications but not for high-speed indexing. AC-4 drops to 300 1/h, reflecting the heavier wear from inching or plugging duty.

Dimensions are 140 mm high, 70 mm wide, 195 mm deep — the S3 frame fits standard 200 mm deep enclosures with room for wiring ducts. Solid conductor range is 2.5 to 16 mm²; stranded accepts 6 to 70 mm². The magnet coil uses screw-type terminals, and auxiliary switch is included. Clearance distances: 10 mm upwards, 20 mm forwards, 10 mm sideways, 10 mm downwards — plan your DIN rail spacing accordingly.

Frequently asked questions

How do I get pricing and availability for 3RT2045-1AR64?

We source the 3RT2045-1AR64 to order against an RFQ. Submit a request and we'll confirm current pricing and availability at quote time.

What is the closest functional second-source to 3RT2045-1AR64?

The peer MPN 3RT2036-1AC20-ZX95 is a smaller SIRIUS contactor, but it will not drop into a panel wired for the S3 frame without rewiring — the frame size, terminal capacity, and mounting footprint differ. Stick with the 3RT2045-1AR64 for a direct fit.

What is the depth of 3RT2045-1AR64?

The depth is 195 mm. This fits standard 200 mm deep enclosures with clearance for wiring.

What solid conductor range does 3RT2045-1AR64 accept?

Solid conductors from 2.5 to 16 mm²; stranded from 6 to 70 mm². The magnet coil uses screw-type terminals.

MPN
3RT2045-1AR64