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Siemens 3RT1517-2BB40-ZX95 — Contactors

Siemens 3RT1517-2BB40-ZX95 SIRIUS Power Contactor, 24 VDC Co

MPN3RT1517-2BB40-ZX95

Siemens SIRIUS power contactor, size S00, 24 VDC coil, spring-loaded terminals, 45 mm width, IP20 front.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RT1517-2BB40-ZX95 — Identification
ParameterValue
Contactor frame sizeS00
3RT1517-2BB40-ZX95 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1517-2BB40-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1517-2BB40-ZX95 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts2
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1517-2BB40-ZX95 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 35 A
Short-circuit coordination type 2, fusefuse gL/gG: 20 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1517-2BB40-ZX95 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Side-by-side mountingYes
3RT1517-2BB40-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1517-2BB40-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RT1517-2BB40-ZX95 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth72 mm

Product details

The magnet coil is rated at 24 VDC with a closing power of 3.3 W. Pick-up voltage is 0.85 x rated value (20.4 V), and drop-out is 0.1 x rated value (2.4 V) — the hold range is wide, but verify your control supply stays above the pick-up threshold under load.

Main and Auxiliary Contact Ratings

Main circuit spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded wire. The auxiliary contacts (1 NO + 1 NC) are each rated at 12 A; the NC contact is instantaneous (zero delay). For DC switching at 24 V, the maximum permissible current is 0.01 A — this is a signal-level rating, not for power DC loads. AC switching capacity varies by voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V. Mechanical life is typical 30 million operations; maximum switching frequency at AC-1 is 1000 cycles per hour.

Frequently asked questions

What is the closest functional second-source to 3RT1517-2BB40-ZX95?

The 3RT2016-2BB42-ZX95 is a peer in the same SIRIUS family, but it is a size S2 contactor with a different footprint and higher current ratings — it will not drop into an S00 panel without rewiring and rail repositioning. For a direct S00 replacement, stick with the 3RT1517-2BB40-ZX95 or its non-ZX95 base variant.

What is the listed depth of this contactor?

The depth is 72 mm, with a width of 45 mm and height of 60 mm.

What wire sizes does the spring-loaded terminal accept?

The spring-loaded terminals on the main circuit accept 2x (0.25 to 2.5 mm²) solid or stranded conductors.

MPN
3RT1517-2BB40-ZX95