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Siemens 3RT2024-2DB40 — Contactors

Siemens 3RT2024-2DB40 SIRIUS Power Contactor, 24 VDC, Size S

MPN3RT2024-2DB40
Active

Siemens SIRIUS power contactor, Size S0, 24 VDC coil, spring-type terminals, screw and snap-on 35 mm DIN rail, 45 mm width, 102 mm height, 107 mm depth.

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

Product details

The 24 VDC coil pulls in at 0.8 × rated voltage (19.2 V) and holds across the full operating range of -25 to +60 °C, with storage tolerance from -55 to +80 °C. DC switching capability is specified per voltage: 6 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V — these are the contact ratings for DC loads, not the AC motor ratings. Mechanical life is rated at 10 million operations typical; electrical switching frequency maxes out at 1 000 cycles per hour for AC-1, AC-2, AC-3, and AC-3e duty, dropping to 300 cycles per hour for AC-4. The contactor carries one normally-open and one normally-closed auxiliary contact (18 … 8 configuration on the main contacts).

The 45 mm wide, 102 mm tall, 107 mm deep envelope fits standard Size S0 panel cutouts.

Frequently asked questions

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

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

What are the DC switching ratings for 3RT2024-2DB40?

DC contact ratings are specified per voltage: 6 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V.

What wire sizes does the spring-type terminal accept?

The spring-type terminals accept solid or stranded conductors from 1 to 10 mm², and two 0.5 to 2.5 mm² conductors can be terminated together.

MPN
3RT2024-2DB40