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Siemens 3RT2016-2DB44 — Contactors

Siemens 3RT2016-2DB44 SIRIUS Power Contactor, 24 V DC Coil,

MPN3RT2016-2DB44
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Siemens SIRIUS power contactor, size S00, order code 3RT2016-2DB44, 24 V DC coil, spring-type terminals, 45 mm width.

Siemens 3RT2016-2DB44 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

3RT2016-2DB44 — Identification
ParameterValue
Contactor frame sizeS00
3RT2016-2DB44 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V8.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V1 hp
Rated value @ 24 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2016-2DB44 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2016-2DB44 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2016-2DB44 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 35A (690V,100kA), aM: 20A (690V,100kA), BS88: 35A (415V,80kA)
Short-circuit coordination type 2, fusegG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A (415V, 80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2016-2DB44 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid0.5 ... 4 mm²
Conductor cross-section, solid or stranded2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2016-2DB44 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2016-2DB44 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2016-2DB44 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth121 mm

Product details

SIRIUS 3RT2016-2DB44 — compact power contactor for 24 V DC control

The coil is rated 24 V DC, drawing 6 A at that voltage for the auxiliary circuit. Spring-type terminals (cage clamp) accept 0.5... 4 mm² solid or stranded wire, and up to 2x (0.5... 4 mm²) per clamp — no screw torque to verify, which speeds panel wiring.

Switching frequency and contact ratings

Maximum switching frequency depends on duty: 1 000 operations/hour at AC-1 (resistive), 750/h at AC-2 and AC-3 (motor starting), and 250/h at AC-4 (plugging/inching). The AC-3e rating also caps at 750/h. These limits govern thermal rise in the coil and contacts — exceeding them shortens life or causes nuisance tripping. Main contacts are rated for 20... 12 A (likely a range for different voltage/load combinations, though the exact condition isn't broken out here). The auxiliary contact at 24 V DC is 6 A; at 230 V it's rated 1 hp.

Frequently asked questions

What is 3RT2016-2DB44's listed depth (121 mm) on this component line?

The depth is 121 mm, width 45 mm, height 70 mm. The 45 mm width is standard for size S00 contactors and fits a single DIN-rail module slot.

What is 3RT2016-2DB44's listed solid (0.5... 4 mm²) on this component line?

The spring-type terminals accept solid or stranded wire from 0.5 to 4 mm², and up to 2x (0.5... 4 mm²) per clamp. No screw torque needed — cage clamp termination.

Will 3RT2016-2DB44 drop into a panel that was specified around 3RT2015-2BB44-3MA0 without rewiring?

Both are size S00 contactors with the same 45 mm width and DIN-rail mounting. The 3RT2016-2DB44 uses spring-type terminals, while the 3RT2015-2BB44-3MA0 may use screw terminals — check the terminal type on the existing panel. If the existing panel uses screw terminals, the spring-clamp version will still fit mechanically but the wiring method differs (no screw torque, but the cage clamp requires a different insertion technique). No rewiring of the DIN rail or enclosure cutout is needed.

MPN
3RT2016-2DB44