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Siemens 3RT2037-1AN10 — Contactors

Siemens 3RT2037-1AN10 SIRIUS Power Contactor, 65 A at 480 V

MPN3RT2037-1AN10
Active

Siemens SIRIUS 3RT2037-1AN10 power contactor, Size S2, 65 A at 480 V AC-3, screw and snap-on mounting on 35 mm DIN rail per DIN EN 60715, auxiliary switch included.

Siemens 3RT2037-1AN10 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RT2037-1AN10 — Identification
ParameterValue
Contactor frame sizeS2

Ratings & Performance

3RT2037-1AN10 — 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 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A

Control & Coil

3RT2037-1AN10 — Control & Coil
ParameterValue
Control supply voltage typeAC

Contacts & Poles

3RT2037-1AN10 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Protection & Coordination

3RT2037-1AN10 — 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)

Connection & Mounting

3RT2037-1AN10 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes

Durability

3RT2037-1AN10 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000

Environmental

3RT2037-1AN10 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m

Mechanical

3RT2037-1AN10 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth130 mm

Specifications

3RT2037-1AN10 — Specifications
ParameterValue
At AC10 ... 18 ms

Product details

Operating conditions and aux switch

The 3RT2037-1AN10: An auxiliary switch is built in (18...1 configuration for the main contacts), so you get a feedback signal without adding a separate block — saves a DIN-rail slot and one wiring step.

Sourcing — active production, quoted to order

Lifecycle stage is current — this is an active-production part, not a legacy or phase-out line. Same genuine Siemens part, traceable lot, warranty-backed.

Frequently asked questions

How can I get current pricing and availability for 3RT2037-1AN10?

Submit an RFQ against your BOM quantity.

MPN
3RT2037-1AN10