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Siemens 3RT1023-3AK60 — Contactors

Siemens 3RT1023-3AK60 SIRIUS Power Contactor, S0, 24 VDC 10

MPN3RT1023-3AK60

Siemens SIRIUS power contactor, size S0, 24 VDC coil, 10 A rated operating current, 4 kW at AC-2 400 V, screw terminals, 35 mm DIN rail mount, 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

3RT1023-3AK60 — Identification
ParameterValue
Contactor frame sizeS0
3RT1023-3AK60 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V8.5 A
Rated value @ 400 V3 A
Rated value @ 500 V4.5 kW
Rated value @ 690 V5.5 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
3RT1023-3AK60 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1023-3AK60 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1023-3AK60 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 63 A
Short-circuit coordination type 2, fusefuse gL/gG: 25 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1023-3AK60 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Side-by-side mountingYes
3RT1023-3AK60 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1023-3AK60 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1023-3AK60 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth90 mm

Product details

Siemens 3RT1023-3AK60 SIRIUS Power Contactor — S0 Frame, 24 VDC Coil

It carries a 24 VDC coil rated at 10 A, and is specified for AC-2 duty at 4 kW at 400 V, with an AC-4 rating of 8.5 A at 400 V — the AC-4 figure governs reversing or plugging applications where the contactor makes and breaks stalled rotor current.

Coil and Auxiliary Circuit Ratings

For auxiliary contact switching, the contactor is rated at 60 VDC 2 A, 110 VDC 1 A, and 220 VDC 0.3 A — these values define the DC breaking capability of the built-in auxiliary contacts and should be respected when switching inductive DC loads like relay coils or solenoid valves. AC auxiliary ratings include 230 V at 6 A and 400 V at 3 A. The operating range at 50 Hz and 60 Hz is 0.8 to 1.1 times the rated control supply voltage, which means the coil holds in from about 19.2 V to 26.4 VDC at nominal 24 V.

Short-Circuit Coordination and Terminal Data

The main circuit terminals accept screw-type connections: 2x (0.25 to 2.5 mm²) solid, 2x (1 to 2.5 mm²) stranded, 2x (2.5 to 6 mm²) stranded, and up to 2x 10 mm² maximum. AWG equivalents are 2x (16 to 12), 2x (14 to 10), and 1x 8.

Frequently asked questions

Where can I buy 3RT1023-3AK60 and what is the lead time?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time figure is published here.

What is the depth of 3RT1023-3AK60?

The depth is 90 mm. Width is 45 mm and height is 85 mm, so it occupies a single 45 mm module on a 35 mm DIN rail.

What solid conductor sizes does 3RT1023-3AK60 accept?

The main circuit terminals accept 2x (0.25 to 2.5 mm²) solid conductors. Stranded sizes are 2x (1 to 2.5 mm²) and 2x (2.5 to 6 mm²), with a maximum of 2x 10 mm².

Will 3RT1023-3AK60 drop into a panel specified for 3RT1023-1AL20?

Both are S0 frame contactors with the same 45 mm width and 35 mm DIN rail mounting, so the mechanical footprint is identical. The key difference is the coil voltage: 3RT1023-3AK60 uses a 24 VDC coil rated at 10 A, while 3RT1023-1AL20 uses a different coil voltage. Verify the control circuit voltage before substitution.

What compliance documentation does Siemens provide for 3RT1023-3AK60?

As a SIRIUS product, Siemens provides a declaration of conformity to relevant EU directives (Low Voltage Directive, EMC Directive) and the manufacturer's CE marking. RoHS and REACH compliance declarations are available from Siemens documentation. The product carries UL/CSA recognition per Siemens standard practice for this series.

MPN
3RT1023-3AK60