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Siemens 3RT1054-3NB36 — Contactors

Siemens 3RT1054-3NB36 SIRIUS Power Contactor S6, 21-27.3 VDC

MPN3RT1054-3NB36
Active

Siemens SIRIUS power contactor, S6 frame, 3RT1054-3NB36, 21-27.3 VDC coil, spring-type terminals, 170 mm depth, 172 mm height, 120 mm width.

$228.60Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1054-3NB36 — Identification
ParameterValue
Contactor frame sizeS6
3RT1054-3NB36 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V97 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V25 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1054-3NB36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.6
Rated value @ 50 Hz21 ... 27.3 V
3RT1054-3NB36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1054-3NB36 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 355 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 250 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 250 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1054-3NB36 — Connection & Mounting
ParameterValue
Main circuit connectionbox terminal
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0,25 ... 2,5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew fixing
Side-by-side mountingYes
3RT1054-3NB36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1054-3NB36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1054-3NB36 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1054-3NB36 — Specifications
ParameterValue
At AC80 ... 90 ms

Product details

What this SIRIUS S6 contactor does in the panel

It mounts via screw fixing on a vertical surface, rotatable ±90° and tiltable ±22.5° front-to-back, giving panel builders flexibility in tight enclosures. The coil pulls in at 21–27.3 VDC (rated value range) and holds across that band, with a pick-up dropout ratio of 0.8 of initial value — meaning it drops out cleanly at about 16.8 V, preventing chatter on a sagging DC bus. Spring-type terminals on the magnet coil accept 2x (0.25–2.5 mm²) solid or stranded, while the main power circuit handles 16–70 mm² stranded cable — sized for the S6 frame's typical motor currents. The auxiliary switch is built in, with rated values of 10 A at 24 VDC, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 VDC, covering pilot-duty and PLC input signaling needs.

Switching frequency and thermal limits

Maximum operating frequency varies by duty: 800 cycles/hour at AC-1 (resistive), 400 at AC-2, 1,000 at AC-3 and AC-3e (standard motor start), and 130 at AC-4 (plugging/inching). The AC-4 limit is the one to watch — frequent reversing or jogging will hit that ceiling fast. Arcing time runs 10–15 ms; operate time is 80–90 ms on both AC and DC coil supply.

Frequently asked questions

Where can I buy the 3RT1054-3NB36 and get a price?

This part is sourced and quoted to order against an RFQ through independent industrial distribution. Submit an RFQ for current availability and pricing — confirmed at quote time.

What are the key dimensions for panel fit?

Depth 170 mm, height 172 mm, width 120 mm. Mounting is screw-fix on a vertical surface with ±90° rotation and ±22.5° tilt. Minimum clearance: 10 mm up/down/side, 20 mm forward.

What compliance documentation does Siemens provide for this contactor?

As a standard SIRIUS catalog product, the 3RT1054-3NB36 carries the usual Siemens declarations — RoHS, REACH, and applicable IEC/UL certifications. Specific documentation is available on request with the RFQ.

MPN
3RT1054-3NB36