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Siemens 3RT7046-1AH00 — Contactors

Siemens 3RT7046-1AH00 SIRIUS Contactor, 3-Pole, AC-3 690 V,

MPN3RT7046-1AH00

Siemens SIRIUS S3 contactor, 3RT7046-1AH00, 3-pole, AC-3 rated 690 V, screw-type terminals, IP20 front, size S3.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT7046-1AH00 — Identification
ParameterValue
Contactor frame sizeS3
3RT7046-1AH00 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
3RT7046-1AH00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.27
Rated value @ 50 Hz42 V
3RT7046-1AH00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliabilityacceptability for PLC control (17 V, 5 mA)
3RT7046-1AH00 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegL/gG NH 3NA: 200 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT7046-1AH00 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
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 and 75 mm DIN rail
Side-by-side mountingYes
3RT7046-1AH00 — Environmental
ParameterValue
Operating temperature range-10 ... +55 °C
Storage temperature range-25 ... +70 °C
Installation altitude, max.2 000 m
3RT7046-1AH00 — Mechanical
ParameterValue
Width70 mm
Height148 mm
Depth139 mm

Product details

Current production, so no LTB scramble yet.

Mounting & Panel Fit

Snaps onto 35 mm or 75 mm DIN rail — screw and snap-on both work. Side-by-side mounting allowed, so you can pack a row of these on a gland plate without derating for spacing. Dimensions: 148 mm high, 70 mm wide, 139 mm deep — that 70 mm width is the critical fill factor on a standard DIN rail.

Electrical & Coordination

AC-3e switching maxes at 800 operations per hour; AC-4 drops to 250 ops/h — the heavier the load, the slower the cycle. For type 1 coordination, Siemens calls for a 200 A gL/gG NH fuse (3NA). That's the selectivity gate for the panel designer: if your upstream breaker is smaller, the coordination table shifts.

Control & Auxiliary

Coil holds at 0.27 W DC, pulls 0.68 W DC during pickup — low enough for a PLC output to drive directly. Auxiliary contacts rated for PLC-level switching (17 V, 5 mA), so no dry-contact reliability worry on low-voltage digital inputs. Accepts 2x (0.5–1.5 mm²) or 2x (0.75–2.5 mm²) solid/stranded with ferrules. Degree of pollution 3 means it's fine in a typical industrial panel without conformal coating.

Frequently asked questions

What are the key dimensions of 3RT7046-1AH00?

Height 148 mm, width 70 mm, depth 139 mm — the 70 mm width is the tight fit for DIN-rail packing.

MPN
3RT7046-1AH00