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Siemens 3RT1026-1AP64 — Contactors

Siemens 3RT1026-1AP64 SIRIUS Power Contactor, S0, 11 kW AC-2

MPN3RT1026-1AP64

Siemens SIRIUS power contactor, size S0, 3RT1026-1AP64, 11 kW AC-2 at 400 V, 15.5 A AC-4 at 400 V, screw terminals, IP20 front.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT1026-1AP64 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-1AP64 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V15.5 A
Rated value @ 400 V3 A
Rated value @ 500 V11 kW
Rated value @ 690 V11 kW
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
3RT1026-1AP64 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz220 V
3RT1026-1AP64 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-1AP64 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 100 A
Short-circuit coordination type 2, fusefuse gL/gG: 35 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1026-1AP64 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
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 (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 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 standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1026-1AP64 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-1AP64 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Installation altitude, max.2 000 m
3RT1026-1AP64 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth140 mm

Product details

It handles 11 kW at 400 V in AC-2 (slip-ring motor start/run) and pulls 15.5 A in AC-4 (plugging/inching) at the same voltage — so it's sized for frequent reversing or jogging applications on a moderate motor load.

AC-4 at 400 V is 15.5 A, which covers the higher stress of reversing or inching duty; if your conveyor or hoist cycles through plugging, this is the number that governs contact life. For Type 2 coordination (no weld under fault), the upstream fuse must be gL/gG 35 A; for Type 1 (welding allowed, but no fire or shock), it's 100 A.

Terminals and wiring

Both main and auxiliary/control circuits use screw-type terminals. The main terminals accept solid wire from 2x (0.5 to 1.5 mm²) up to 2x (0.75 to 4 mm²), or stranded from 2x (1 to 2.5 mm²) up to 2x (2.5 to 6 mm²), with a max of 2x 10 mm². For AWG, that's 2x (16 to 12) solid or 2x (14 to 10) stranded, single 8 AWG max. The auxiliary contacts are smaller: 2x (20 to 16) AWG solid, 2x (18 to 14) stranded, single 12 AWG.

The substance prohibitance date of 01.07.2006 aligns with RoHS-style restrictions — the contactor is compliant with the EU's substance bans in effect from that date.

Frequently asked questions

What are the key motor ratings for this contactor?

AC-2 at 400 V: 11 kW. AC-4 at 400 V: 15.5 A. It also carries 11 kW at 500 V and 690 V, making it suitable for 400 V to 690 V motor circuits in slip-ring or reversing duty.

What fuse coordination is required?

For Type 2 coordination (no welding), use a gL/gG fuse rated 35 A. For Type 1 coordination (welding allowed but safe), the fuse can be 100 A gL/gG.

What is the physical size and mounting?

Size S0: 45 mm wide, 85 mm high, 140 mm deep. It mounts on a 35 mm DIN rail per DIN EN 50022 or can be screw-mounted. Side-by-side mounting is permitted without derating.

What wire sizes does it accept?

Main terminals: solid 2x (0.5 to 1.5 mm²) up to 2x (0.75 to 4 mm²), stranded 2x (1 to 2.5 mm²) up to 2x (2.5 to 6 mm²), max 2x 10 mm². Auxiliary: solid 2x (20 to 16 AWG), stranded 2x (18 to 14 AWG), single 12 AWG max.

MPN
3RT1026-1AP64