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Siemens 3RT2037-3AG16 — Contactors

Siemens 3RT2037-3AG16 SIRIUS Power Contactor, 65 A at 480 V

MPN3RT2037-3AG16
Active

Siemens SIRIUS power contactor, Size S2, 3RT2037-3AG16, 65 A at 480 V, spring-type terminals, screw and snap-on DIN rail mounting.

Siemens 3RT2037-3AG16 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

3RT2037-3AG16 — Identification
ParameterValue
Contactor frame sizeS2
3RT2037-3AG16 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V55 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V10 hp
Rated value @ 24 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2037-3AG16 — Control & Coil
ParameterValue
Control supply voltage typeAC
3RT2037-3AG16 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2037-3AG16 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)
Short-circuit coordination type 2, fusegG: 125A (690V,100kA), aM: 63A (690V,100kA), BS88: 100A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2037-3AG16 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
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 standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2037-3AG16 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2037-3AG16 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2037-3AG16 — Mechanical
ParameterValue
Width75 mm
Height114 mm
Depth130 mm
3RT2037-3AG16 — Specifications
ParameterValue
At AC10 ... 18 ms

Product details

Integrator brief — what fits, what doesn't

The Siemens 3RT2037-3AG16 is a SIRIUS power contactor in Size S2, rated for switching motor loads up to 65 A at 480 V — that's the AC-3 current that governs real induction-motor duty, not the higher resistive rating. Spring-type terminals on the magnet coil and main contacts (, 18...1 configuration) accept 2x 0.5 to 2.5 mm² solid or stranded. No auxiliary switch is built in, so plan a separate auxiliary contact block if feedback to the PLC is needed. Mechanical life is 10 million operations typical; electrical life varies by load — 700 cycles per hour under AC-3, 200/h under AC-4 reversing duty.

DIN-rail fit and panel clearance

Dimensions: 114 mm high, 75 mm wide, 130 mm deep.

Frequently asked questions

Will 3RT2037-3AG16 fit a panel designed for 3RT2015-2BB44-3MA0?

Not without checking the footprint. The 3RT2037-3AG16 is a Size S2 contactor, while the 3RT2015-2BB44-3MA0 is a smaller Size S0 frame. Panel cutouts, DIN-rail spacing, and terminal layout differ between the two sizes.

MPN
3RT2037-3AG16