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Siemens 3RT1055-6AF36-3PA0 — Contactors

Siemens 3RT1055-6AF36-3PA0 Contactor, S6, 110-127V

MPN3RT1055-6AF36-3PA0
Active

Siemens SIRIUS 3RT1055-6AF36-3PA0 Power Contactor, S6 frame, 110–127 V AC/DC coil, integrated auxiliary switch, screw-type terminals, active production.

$250.19Ref. price · indicative, final on quote
Siemens 3RT1055-6AF36-3PA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1055-6AF36-3PA0 — Identification
ParameterValue
Contactor frame sizeS6
3RT1055-6AF36-3PA0 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V132 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V30 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1055-6AF36-3PA0 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz110 ... 127 V
3RT1055-6AF36-3PA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1055-6AF36-3PA0 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 355 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 315 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 315 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1055-6AF36-3PA0 — Connection & Mounting
ParameterValue
Main circuit connectionConnection bar
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 (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew fixing
Side-by-side mountingYes
3RT1055-6AF36-3PA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1055-6AF36-3PA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1055-6AF36-3PA0 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1055-6AF36-3PA0 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

The built-in auxiliary switch covers basic status feedback without an add-on block.

Mounting and footprint

Dimensions: height 172 mm, width 120 mm, depth 170 mm. Fastening by screw fixing. Mounting position allows rotation of +/-90° on a vertical surface and tilting of +/-22.5° front-to-back — useful for tight enclosures or angled panels. Main power terminals accept stranded conductors from 25 to 120 mm². Coil terminals accept solid or stranded wire: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). Use ferrule for stranded on coil terminals to avoid strand whiskers.

Frequently asked questions

What is the coil voltage rating?

The coil is rated for 110–127 V AC or DC. The exact pickup and dropout values are not in this record; for thermal margin ensure control supply stays within 110–127 V.

What is the depth of this contactor?

The depth is 170 mm, including the base and any coil projecting; allow an additional 20 mm forward clearance for arc chutes and wiring.

What terminal capacity does the coil connection have?

The coil terminals accept solid or stranded conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or a maximum of 2x 0.75–4 mm².

MPN
3RT1055-6AF36-3PA0