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Siemens 3RT1055-6AM36 — Contactors

Siemens 3RT1055-6AM36 SIRIUS Power Contactor, Size S6

MPN3RT1055-6AM36
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Siemens SIRIUS 3RT1055-6AM36 power contactor, size S6, 200-220 V AC coil, screw-type terminals, 3-pole, 170 mm depth, 120 mm width, 172 mm height.

$240.03Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1055-6AM36 — Identification
ParameterValue
Contactor frame sizeS6
3RT1055-6AM36 — 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
3RT1055-6AM36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz200 ... 220 V
3RT1055-6AM36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1055-6AM36 — 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)
3RT1055-6AM36 — 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
3RT1055-6AM36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1055-6AM36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1055-6AM36 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1055-6AM36 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

SIRIUS S6 frame — panel fit and power wiring

The 3RT1055-6AM36: Power-side conductors accept stranded wire from 25 to 120 mm²; the auxiliary/coil terminals take solid or stranded 0.5–4 mm² (2x conductors per clamp). This covers most motor feeder and control wiring in a single termination.

Duty-cycle capability and switching limits

The AC-3 rate is the one that governs most standard motor applications. These intervals matter when coordinating with upstream short-circuit protection or sequencing multiple contactors.

Coil and auxiliary circuit details

The magnet coil is rated for 200–220 V AC and uses screw-type terminals. Auxiliary switch contacts are rated at 24 V (10 A), 48 V (2 A), 60 V (2 A), and 110 V (1 A) — sufficient for PLC inputs or indicator lamps in most control panels. An auxiliary switch is included as standard, so no separate add-on block is needed for basic status feedback — confirm the contact configuration matches your control logic before wiring.

Thermal environment and storage

The 60 °C ceiling is typical for enclosed panels without forced ventilation — if the panel internal ambient exceeds this, derate or add cooling.

Sourced through the authorized Siemens distribution channel. Full factory traceability and warranty apply.

MPN
3RT1055-6AM36