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Siemens 3RT2037-1AP64 — Contactors

Siemens 3RT2037-1AP64 SIRIUS S2 Power Contactor, 65 A at 480

MPN3RT2037-1AP64
Active

Siemens SIRIUS S2 power contactor, 3RT2037-1AP64, Size S2, screw-type coil terminals, 65 A AC-3 at 480 V, 55 mm wide, DIN rail snap-on.

Siemens 3RT2037-1AP64 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

3RT2037-1AP64 — Identification
ParameterValue
Contactor frame sizeS2
3RT2037-1AP64 — 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
3RT2037-1AP64 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.36
Rated value @ 50 Hz220 V
3RT2037-1AP64 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2037-1AP64 — 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)
3RT2037-1AP64 — 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
3RT2037-1AP64 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2037-1AP64 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2037-1AP64 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth174 mm
3RT2037-1AP64 — Specifications
ParameterValue
At AC10 ... 18 ms

Product details

SIRIUS S2 power contactor — 65 A at 480 V, screw-type coil terminals

Its headline rating is 65 A in AC-3 duty at 480 V — that's the motor-switching current it handles for standard squirrel-cage induction motors, so it's sized for loads like conveyors, pumps, and fans up to that current draw. The 55 mm width and 114 mm height footprint fit standard panel layouts; depth is 174 mm.

Maximum switching rates: 800 cycles/hour at AC-1 (resistive loads), 700 at AC-3 (motor loads), 400 at AC-2 (slip-ring motors), and 200 at AC-4 (plugging/inching). The AC-3e rating matches the AC-3 maximum at 700 cycles/hour.

Coil and auxiliary contact specs

The coil draws 0.36 A at 50 Hz and 0.39 A at 60 Hz at 220 V rated value. Arcing time is 10 to 20 ms; operate time is 10 to 18 ms. Main contacts are 18 to 1 — that's the normally-open/normally-closed configuration.

Clearances and environmental limits

Frequently asked questions

What is the closest functional second-source for 3RT2037-1AP64?

The closest functional peer is 3RT2036-1AC20-ZX95, but it's a different variant with its own coil voltage and special code. The 3RT2037-1AP64 uses screw-type coil terminals and is a standard S2 frame; verify coil compatibility and any special features before substituting.

What are the key ratings of 3RT2037-1AP64?

The headline rating is 65 A in AC-3 duty at 480 V for motor loads. Coil draws 0.36 A at 50 Hz / 0.39 A at 60 Hz at 220 V. Mechanical life is 10,000,000 operations typical. Maximum switching rate is 700 cycles/hour at AC-3.

Where can I buy 3RT2037-1AP64 and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

MPN
3RT2037-1AP64