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Siemens 3RT1065-6AU36 — Contactors

Siemens 3RT1065-6AU36 SIRIUS Power Contactor, S10

MPN3RT1065-6AU36
Active

Siemens SIRIUS 3RT1065-6AU36 power contactor, size S10, 240-277 V AC coil, screw-type coil terminals, main terminals 70-240 mm² stranded, 202 mm depth, 145 mm width, 210 mm height.

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

Specifications

3RT1065-6AU36 — Identification
ParameterValue
Contactor frame sizeS10
3RT1065-6AU36 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V230 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1065-6AU36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.9
Rated value @ 50 Hz240 ... 277 V
3RT1065-6AU36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1065-6AU36 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 500 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 400 A (690 V, 100 kA), aM: 315 A (690 V, 50 kA), BS88: 400 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1065-6AU36 — 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
3RT1065-6AU36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1065-6AU36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1065-6AU36 — Mechanical
ParameterValue
Width145 mm
Height210 mm
Depth202 mm
3RT1065-6AU36 — Specifications
ParameterValue
At AC40 ... 80 ms

Product details

Active production — SIRIUS S10 frame

The 3RT1065-6AU36: Coil is rated 240–277 V AC with a pickup threshold of 0.8× rated value and a drop-out of 1.1× full-scale value, meaning it pulls in reliably on a sagging line but drops out cleanly on undervoltage. Mechanical endurance is 10 million operations typical — a fast mover for high-cycle conveyor or pump applications where contactor life drives the PM schedule.

Panel fit and wiring constraints

Dimensions are 202 mm deep, 145 mm wide, 210 mm tall — the S10 frame is one of the larger contactor footprints; verify backpanel clearance before laying out the gland plate. Mounting is screw fixing on a vertical surface, rotatable ±90° and tiltable ±22.5° front-to-back — gives flexibility in crowded enclosures but the screw fix means no DIN-rail snap-on. Minimum clearance around the contactor: 10 mm upward, downward, and to the sides, 20 mm forward — these are the ventilation and arc-flash spacing; crowding them derates the thermal capacity.

Terminal capacity and auxiliary contacts

Main power terminals accept 70–240 mm² stranded cable — sized for motor feeders up to the S10 current class; the lug hole is 11 mm diameter, single hole per phase.

Duty-cycle limits per load class

Switching frequency caps vary by duty: AC-1 (resistive) allows 800 operations/hour, AC-3 (motor starting) 500 ops/h, AC-4 (plugging/inching) 130 ops/h — the AC-4 ceiling is the one that governs high-duty-cycle applications like reversing conveyors.

Frequently asked questions

What is the closest functional second-source for 3RT1065-6AU36?

The peer MPNs listed (6ES7517-3FP00-0AB0, 6AG1215-1BG40-5XB0, 6ES7214-1BG40-0XB0) are Siemens PLC modules, not contactors — they are not functional replacements and will not drop into a panel wired for this contactor without rewiring.

MPN
3RT1065-6AU36