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Siemens 3RT6015-1BW42 — Contactors

Siemens 3RT6015-1BW42 SIRIUS Power Contactor, S00, 48 VDC, 6

MPN3RT6015-1BW42

Siemens SIRIUS 3RT6015-1BW42 power contactor, size S00, 48 VDC coil, screw terminals, DIN rail mount.

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

Specifications

3RT6015-1BW42 — Identification
ParameterValue
Contactor frame sizeS00
3RT6015-1BW42 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V10 A
Rated value @ 24 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT6015-1BW42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT6015-1BW42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT6015-1BW42 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 35 A
Short-circuit coordination type 2, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 20 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT6015-1BW42 — 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), 2x 4 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 50022
Side-by-side mountingYes
3RT6015-1BW42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT6015-1BW42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT6015-1BW42 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm

Product details

Its 48 VDC coil draws 6 A at 24 V rated value, and the contactor is rated for AC-3 duty up to 690 V, making it suitable for switching three-phase induction motors up to 10.5 kW at 400 V (at 60 °C ambient).

The contactor carries a substance prohibitance date of 05/01/2012, indicating RoHS compliance from that date forward. For UL or IEC certification documentation, the brand provides it on request as part of the standard SIRIUS technical documentation package.

The AC-3 rated voltage maximum of 690 V means this contactor can switch motor loads at line voltages up to that level, covering 400 V and 690 V industrial networks. At 400 V, the motor rating is 10.5 kW at 60 °C ambient; at 690 V it reaches 18 kW — the higher voltage allows the same current to deliver more power. The control circuit uses screw-type terminals, accepting 2x (0.5... 1.5 mm²) or 2x (0.75... 2.5 mm²) solid or stranded conductors — common for panel wiring. The main circuit terminals accept up to 2x 4 mm², or 2x 12 AWG, which covers the typical feed for a size S00 contactor.

Mechanical endurance and switching frequency

The contactor has a typical mechanical life of 30,000,000 operations, which is high for a size S00 frame. Maximum switching frequency at AC-3 is 750 1/h, at DC it is 10 000 1/h — the DC figure applies to the coil, not the main contacts, so a PLC output driving the coil can cycle it rapidly without wear concerns.

Frequently asked questions

What is the closest functional second-source for 3RT6015-1BW42?

The 3RT6017-1KF42 is a sibling in the same SIRIUS S00 family, but it uses a 24 VDC coil versus the 48 VDC coil of the 3RT6015-1BW42. The mechanical footprint (45 mm width, DIN rail snap-on) is identical, so it will drop into the same panel without rewiring, but the coil voltage must match the control circuit — verify before substituting.

What is the depth and width of 3RT6015-1BW42?

The depth is 73 mm and the width is 45 mm, with a height of 57.5 mm. These dimensions allow side-by-side mounting on a 35 mm DIN rail without additional spacing.

Where can I buy 3RT6015-1BW42 and how is it quoted?

This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock or price figures are published here.

MPN
3RT6015-1BW42