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Siemens 3RT1015-2JB42-ZX95 — Contactors

Siemens SIRIUS 3RT1015-2JB42-ZX95 Power Contactor, 24 VDC, S

MPN3RT1015-2JB42-ZX95

Siemens SIRIUS power contactor, size S00, 3RT1015-2JB42-ZX95, 24 VDC coil with integrated diode suppression, spring-loaded terminals, 45 mm width, current production.

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

3RT1015-2JB42-ZX95 — Identification
ParameterValue
Contactor frame sizeS00
3RT1015-2JB42-ZX95 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V6.5 A
Rated value @ 400 V3 A
Rated value @ 500 V3.5 kW
Rated value @ 690 V4 kW
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
3RT1015-2JB42-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1015-2JB42-ZX95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1015-2JB42-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
3RT1015-2JB42-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
3RT1015-2JB42-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RT1015-2JB42-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1015-2JB42-ZX95 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

It uses spring-loaded terminals on the main current circuit, accepting solid or stranded wire 2x (0.25... 2.5 mm²) or 2x (24... 14 AWG). Rated for a 24 VDC coil that draws 2.3 W closing and holding, so the coil driver sees a steady load — no inrush spike to size a power supply around. The diode suppression is built in, which saves a separate flyback diode on the panel layout.

The contactor is rated for motor switching: 3.5 kW at 500 V and 4 kW at 690 V. In AC-2 duty (slip-ring motor starting) it carries 3 kW at 400 V; in AC-4 duty (plugging/inching) it handles 6.5 A at 400 V. Those AC-4 numbers matter if the load cycles reversing or jogging — the contactor is sized for that, not just across-the-line starts. Auxiliary contact ratings span 10 A at 24 V down to 0.3 A at 220 V and 6 A at 230 V — covers 24 VDC control circuits and 230 VAC signal loads.

Mounting and integration details

Side-by-side mounting is allowed — no gap needed between contactors — so you can pack multiple units across the rail. Depth is 73 mm, height 60 mm, width 45 mm. Clearance of 6 mm at the side is the minimum to adjacent components for heat dissipation. Maximum altitude 2 000 m without derating. Front and terminal IP20 — safe for finger contact inside a closed panel.

Frequently asked questions

What is the closest functional alternative to 3RT1015-2JB42-ZX95?

The 3RT1015-1BB42 is a size S00 contactor in the same SIRIUS family, but it uses screw terminals instead of spring-loaded terminals. The 3RT1015-2JB42-ZX95 has the integrated diode suppression; the -1BB42 does not. If your panel wiring is already set for screw clamps and you supply external suppression, the -1BB42 is a drop-in for the same 24 VDC coil and S00 footprint. Otherwise, the -2JB42-ZX95 is the one to stay with for the spring terminals and built-in diode.

Will the 3RT1015-2JB42-ZX95 fit a panel designed around the 3RT1015-1BB42?

Yes — same size S00, same 45 mm width, same DIN-rail mounting. No rewiring needed for the footprint. The difference is the terminal type (spring-loaded vs screw) and the integrated diode. If the panel's wiring scheme assumes screw terminals, you'll need to adjust the wire termination method, but the physical fit and coil voltage are identical.

What compliance documentation is available for this contactor?

The Siemens SIRIUS series carries UL, CSA, CE, and IEC certifications as standard. RoHS and REACH declarations are part of the Siemens compliance documentation package. Specific cert numbers are on the product label.

MPN
3RT1015-2JB42-ZX95