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Siemens 3RT1026-1AP08-0MA0 — Contactors

Siemens 3RT1026-1AP08-0MA0 SIRIUS Power Contactor, S0, 11 kW

MPN3RT1026-1AP08-0MA0

Siemens SIRIUS power contactor, size S0, 3 NO main contacts, 11 kW at 400 V AC-2, 45 mm wide, screw terminals, snap-on 35 mm rail.

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

3RT1026-1AP08-0MA0 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-1AP08-0MA0 — Ratings & Performance
ParameterValue
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
3RT1026-1AP08-0MA0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RT1026-1AP08-0MA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-1AP08-0MA0 — 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
3RT1026-1AP08-0MA0 — Connection & Mounting
ParameterValue
Main 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, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mountingYes
3RT1026-1AP08-0MA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-1AP08-0MA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1026-1AP08-0MA0 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth140 mm

Product details

It is rated for motor switching at 11 kW at 400 V in AC-2 duty, and 15.5 A at 400 V in AC-4 duty.

For resistive loads (AC-1), the operating current is 10 A maximum. The auxiliary contact block provides 2 instantaneous contacts, rated at 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — enough for a PLC input or a holding circuit.

Wire sizes: solid conductors from 0.5 to 4 mm² (two per terminal), stranded from 1 to 10 mm² (two per terminal). AWG equivalents: 2x 16–12, 2x 14–10, 1x 8. Pollution degree 3 means it handles conductive dust and condensation — typical for industrial control panels. IP20 on the front, IP00 at the terminals: the front is finger-safe, but the terminals need a cover or enclosure.

Mechanical life is 10 million cycles typical.

Frequently asked questions

Where can I buy 3RT1026-1AP08-0MA0 and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability.

What are the key ratings for 3RT1026-1AP08-0MA0?

It is a size S0 power contactor with 3 NO main contacts, rated 11 kW at 400 V AC-2 and 15.5 A at 400 V AC-4. It mounts on a 35 mm DIN rail, is 45 mm wide, and uses screw terminals.

What compliance documentation does Siemens provide for this contactor?

The evidence does not list specific compliance documents. Standard SIRIUS contactors typically carry CE, UL, CSA, and RoHS declarations — confirm at quote time.

MPN
3RT1026-1AP08-0MA0