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Siemens 3RT2024-2DB40-1AA0 — Contactors

Siemens 3RT2024-2DB40-1AA0 SIRIUS Power Contactor, Size S0,

MPN3RT2024-2DB40-1AA0
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Siemens SIRIUS, power contactor, Size S0, 3RT2024-2DB40-1AA0, 24 VDC coil, spring-type terminals, 45 mm width, 1 000 ops/h AC-3.

Siemens 3RT2024-2DB40-1AA0 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

3RT2024-2DB40-1AA0 — Identification
ParameterValue
Contactor frame sizeS0
3RT2024-2DB40-1AA0 — 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 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2024-2DB40-1AA0 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2024-2DB40-1AA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2024-2DB40-1AA0 — 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)
3RT2024-2DB40-1AA0 — 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
3RT2024-2DB40-1AA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2024-2DB40-1AA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2024-2DB40-1AA0 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth107 mm

Product details

SIRIUS Power Contactor, Size S0 — 24 VDC Coil, Spring-Terminal

The Siemens SIRIUS 3RT2024-2DB40-1AA0 is a Size S0 power contactor with a 24 VDC magnet coil and spring-type terminals, rated for 1 000 operating cycles per hour in AC-3 duty (motor switching). The coil holds at 24 VDC nominal, with pickup at 0.8 x rated and dropout at 1.1 x rated — a standard 24 VDC control supply drives it reliably.

Terminal and Wiring

Spring-type terminals accept 1 … 10 mm² solid or stranded wire, or 2x (0.5 … 2.5 mm²) for daisy-chaining control wiring. An auxiliary switch is integrated (18 … 8 contacts for main), rated at 6 A at 24 VDC, 2 A at 48/60 VDC, 1 A at 110 VDC, 0.9 A at 125 VDC, 0.3 A at 220 VDC, and 3 A at 400 VDC — covers most PLC-level signal switching.

Frequently asked questions

Where can I buy 3RT2024-2DB40-1AA0 and how is it quoted?

Sourced through the authorized Siemens franchise channel. Availability and current pricing are confirmed at quote time against an RFQ — no gray-market risk.

What are the key ratings of 3RT2024-2DB40-1AA0?

Size S0 frame, 24 VDC coil, spring-type terminals, 1 000 ops/h AC-3, 45 mm wide, 102 mm tall, 107 mm deep. Auxiliary contacts rated up to 6 A at 24 VDC.

MPN
3RT2024-2DB40-1AA0