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Siemens 3RT2026-2BB40-0CC0 — Contactors

Siemens 3RT2026-2BB40-0CC0 SIRIUS S0 Power Contactor, 24 VDC

MPN3RT2026-2BB40-0CC0
Active

Siemens SIRIUS S0 power contactor, 3RT2026-2BB40-0CC0, 24 VDC coil, spring-type terminals, 107 mm depth, 45 mm width.

$62.23Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RT2026-2BB40-0CC0 — Identification
ParameterValue
Contactor frame sizeS0
3RT2026-2BB40-0CC0 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V15.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V3 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2026-2BB40-0CC0 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2026-2BB40-0CC0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2026-2BB40-0CC0 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 100 A (690 V, 100 kA), aM: 50 A (690 V, 100 kA), BS88: 100 A (415 V, 80 kA)
Short-circuit coordination type 2, fusegG: 35A (690V, 100kA), aM: 20A (690V, 100kA), BS88: 35A (415V, 80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2026-2BB40-0CC0 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid1 ... 10 mm²
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
3RT2026-2BB40-0CC0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2026-2BB40-0CC0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2026-2BB40-0CC0 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth107 mm

Product details

Switching duty and mechanical life

Rated switching frequency varies sharply by duty class: 1 000 cycles/h at AC-1 (resistive loads), 750 cycles/h at AC-2 and AC-3 (slip-ring and squirrel-cage motors), and 250 cycles/h at AC-4 (plugging/inching). The AC-3e rating also sits at 750 cycles/h. Mechanical endurance is 10 000 000 operations typical — this is the S0 frame's standard life, not a reinforced variant.

The S0 frame is 45 mm wide, 102 mm tall, 107 mm deep — fits standard 45 mm DIN-rail slot pitch.

Lifecycle stage is marked current — this is an active-production part in the Siemens SIRIUS portfolio. No successor or phase-out notice is published.

Frequently asked questions

What are the switching frequency ratings for this contactor?

Rated at 1 000 cycles/h for AC-1 resistive loads, 750 cycles/h for AC-2 and AC-3 motor duty, and 250 cycles/h for AC-4 plugging/inching duty.

Will 3RT2026-2BB40-0CC0 drop into a panel specified around 3RT2036-1AC20-ZX95?

Both are SIRIUS S0-frame contactors with the same 45 mm width and DIN-rail mounting, so the footprint and rail slot are identical. The 3RT2026-2BB40-0CC0 uses a 24 VDC coil and spring terminals; verify the coil voltage and termination preference match your panel design before swapping.

MPN
3RT2026-2BB40-0CC0