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Siemens 3RT2046-1AL26 — Contactors

Siemens 3RT2046-1AL26 SIRIUS S3 Power Contactor, 80 mm

MPN3RT2046-1AL26
Active

Siemens SIRIUS S3 power contactor, 3RT2046-1AL26, screw-type terminals, screw and snap-on mounting onto 35 mm DIN rail, 80 x 140 x 152 mm.

Siemens 3RT2046-1AL26 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT2046-1AL26 — Identification
ParameterValue
Contactor frame sizeS3
3RT2046-1AL26 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V80 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V20 hp
Rated value @ 24 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2046-1AL26 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.35
Rated value @ 50 Hz230 V
3RT2046-1AL26 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2046-1AL26 — 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: 160 A (690 V, 100 kA), aM: 100 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2046-1AL26 — 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2046-1AL26 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2046-1AL26 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2046-1AL26 — Mechanical
ParameterValue
Width80 mm
Height140 mm
Depth152 mm
3RT2046-1AL26 — Specifications
ParameterValue
At AC10 ... 21 ms

Product details

SIRIUS S3 power contactor, 80 mm width, screw terminals

Footprint is 80 mm wide by 140 mm tall by 152 mm deep — that 80 mm width is the key panel-space number when you're laying out a row of contactors on the DIN rail. The contactor accepts solid conductors from 2.5 to 16 mm² and stranded from 6 to 70 mm² on the main circuit; auxiliary terminals take 2x (0.5 to 1.5 mm²) solid or stranded, or 2x (0.75 to 2.5 mm²). That covers most motor-circuit wiring up to the S3 frame size.

Duty ratings and switching rates

Maximum switching rates vary by duty class: 900 operations per hour at AC-1 (resistive), 850 at AC-3 (squirrel-cage motor starting), 850 at AC-3e, 350 at AC-2 (slip-ring motor), and 250 at AC-4 (plugging/inching).

Frequently asked questions

Where can I buy 3RT2046-1AL26 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Submit an RFQ for current pricing and availability — no stock count or lead-time number is published here.

What is 3RT2046-1AL26's listed depth?

The depth is 152 mm, with a width of 80 mm and height of 140 mm.

What solid conductor range does 3RT2046-1AL26 accept?

Solid conductors from 2.5 to 16 mm² on the main circuit; stranded from 6 to 70 mm². Auxiliary terminals accept 2x (0.5 to 1.5 mm²) solid or stranded, or 2x (0.75 to 2.5 mm²).

Will 3RT2046-1AL26 drop into a panel specified around 3RT2037-1AL20-ZX95 without rewiring?

Both are SIRIUS contactors with screw-type terminals and 35 mm DIN rail mounting, but the 3RT2046-1AL26 is an S3 frame size (80 mm wide) versus the smaller frame of the 3RT2037 variant. Verify the DIN rail width allocation and terminal lug sizes before substitution — the S3 frame draws more panel width and may require different lug clearances.

MPN
3RT2046-1AL26