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Siemens 3RT2024-2AL20 — Contactors

Siemens 3RT2024-2AL20 SIRIUS Power Contactor, S0 Size, 24 VD

MPN3RT2024-2AL20
Active

Siemens SIRIUS power contactor, 3RT2024-2AL20, size S0, 24 VDC coil, spring-type terminals, screw and snap-on mounting onto 35 mm DIN rail.

Siemens 3RT2024-2AL20 datasheet (PDF)
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

3RT2024-2AL20 — Identification
ParameterValue
Contactor frame sizeS0
3RT2024-2AL20 — 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 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V2 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2024-2AL20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz230 V
3RT2024-2AL20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2024-2AL20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA)
Short-circuit coordination type 2, fusegG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2024-2AL20 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2024-2AL20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2024-2AL20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2024-2AL20 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth97 mm
3RT2024-2AL20 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

The 3RT2024-2AL20: It carries the SIRIUS brand and is designated as a power contactor, size S0. The 24 VDC coil with spring-type terminals means no screw torque verification on the coil connection — a time-saver on the panel assembly line.

For auxiliary wiring, 2x (0.5 to 2.5 mm²) solid or stranded fits the same spring cage. Strip and insert — no screwdriver needed.

Ratings & Operating Conditions

Rated for AC-1, AC-2, AC-3, and AC-3e switching at up to 1 000 operations per hour; AC-4 duty is limited to 300 operations per hour due to the higher electrical wear of inching and plugging. The 10 mm clearance upwards, downwards, and forwards, plus 6 mm at the sides, keeps heat dissipation and arc flash clearance within spec for a standard S0 footprint.

Frequently asked questions

What are the key dimensions for panel layout?

Width is 45 mm, height is 102 mm, and depth is 97 mm. The S0 size fits the standard contactor footprint on 35 mm DIN rail.

What conductor sizes does the spring terminal accept?

Main and coil circuits accept solid or stranded conductors from 1 to 10 mm². Auxiliary contacts accept 2x (0.5 to 2.5 mm²) solid or stranded.

What is the operating temperature range?

Rated for operation from -25 °C to +60 °C, with storage from -55 °C to +80 °C.

MPN
3RT2024-2AL20