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Siemens 3RT2036-1NB34-3MA0 — Contactors

Siemens 3RT2036-1NB34-3MA0 SIRIUS Power Contactor, 20-33 VDC

MPN3RT2036-1NB34-3MA0
Active

Siemens SIRIUS power contactor, size S2, 3RT2036-1NB34-3MA0, 20-33 VDC coil, screw terminals, screw and snap-on 35 mm DIN rail mounting, depth 174 mm, width 55 mm.

$133.35Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RT2036-1NB34-3MA0 — Identification
ParameterValue
Contactor frame sizeS2
3RT2036-1NB34-3MA0 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V41 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
3RT2036-1NB34-3MA0 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz2 VA
Rated value @ 50 Hz20 ... 33 V
3RT2036-1NB34-3MA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2036-1NB34-3MA0 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 160 A (690 V, 100 kA), aM: 80 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)
Short-circuit coordination type 2, fusegG: 80A (690V,100kA), aM: 50A (690V,100kA), BS88: 63A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2036-1NB34-3MA0 — 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
3RT2036-1NB34-3MA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2036-1NB34-3MA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2036-1NB34-3MA0 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth174 mm
3RT2036-1NB34-3MA0 — Specifications
ParameterValue
At AC30 ... 55 ms

Product details

It mounts on a standard 35 mm DIN rail per DIN EN 60715, either screwed down or snapped on, and the mounting position is flexible: +/-180° rotation on a vertical surface, plus +/-22.5° tilt forward or backward.

Switching duty and mechanical life

Maximum switching rates: AC-1 at 1,000 cycles/hour, AC-3 at 800 cycles/hour, AC-4 at 250 cycles/hour. Mechanical life typical at 10 million operations.

Clearances and environmental limits

Spatial clearances around the contactor: 10 mm upwards, downwards, and forwards; 6 mm at the sides. The auxiliary switch is not included — this is a bare main contactor.

Main contact screw terminals accept 2x (0.5-1.5 mm²) or 2x (0.75-2.5 mm²) solid or stranded conductors. The contactor has 18-1 main contacts.

Coil suppression note

The DC coil draws 6 A at 24 V rated value, dropping to 2 A at 48 V and 60 V, 1 A at 110 V, and 0.9 A at 125 V. At 220 VDC the holding current is 0.3 A. For a 24 VDC control circuit, verify the power supply can deliver the 3 A inrush peak on pickup — a standard 24 VDC bus with a 3 A headroom per contactor is safe. No built-in suppression; add a free-wheel diode across the coil if the PLC output or relay driving it lacks internal clamping.

MPN
3RT2036-1NB34-3MA0