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Siemens 3RT1024-1AK64 — Contactors

3RT1024-1AK64 SIRIUS Power Contactor, 24 VDC Coil, 45 mm

MPN3RT1024-1AK64

Siemens SIRIUS, Size S0 power contactor, 3RT1024-1AK64, 24 VDC coil, screw-type terminals, 45 mm width, AC-3 rated, IP20 front, current production.

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

3RT1024-1AK64 — Identification
ParameterValue
Contactor frame sizeS0
3RT1024-1AK64 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V12.5 A
Rated value @ 400 V3 A
Rated value @ 500 V7.5 kW
Rated value @ 690 V7.5 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
3RT1024-1AK64 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1024-1AK64 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1024-1AK64 — 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
3RT1024-1AK64 — 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
3RT1024-1AK64 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1024-1AK64 — Environmental
ParameterValue
Installation altitude, max.2 000 m
3RT1024-1AK64 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth140 mm

Product details

It carries a 24 VDC coil rated at 10 A and is rated for AC-3 duty, with motor power output of 7.5 kW at both 500 V and 690 V. The coil operates on 50/60 Hz with a control voltage range of 0.8 to 1.1 times rated value.

The AC-3 rating defines the contactor's capability for starting and disconnecting squirrel-cage motors under load. At 400 V, the AC-3 motor power is not explicitly listed but the AC-2 rating at 400 V is 5.5 kW, and the AC-4 rating at 400 V is 12.5 A. The coil draw itself is not listed here, but the auxiliary contact ratings at other voltages — 2 A at 60 VDC, 1 A at 110 VDC, 0.3 A at 220 VDC, and 6 A at 230 VAC — define what the built-in aux can switch for signaling or interlocking. The main circuit uses screw-type terminals rated for 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), max. 2x (0.75...4 mm²) solid. The auxiliary circuit also uses screw terminals. For AWG, main contacts accept 2x (16...12), 2x (14...10), 1x 8; aux contacts accept 2x (20...16), 2x (18...14), 1x 12.

Type 2 coordination (contactor remains operational after a short circuit) requires a 25 A gL/gG fuse. These values govern the upstream fuse selection for the main power circuit. Pollution degree 3 tolerates conductive pollution typical for industrial control panels.

MPN
3RT1024-1AK64