Skip to main content
Siemens 3RT1015-2BG42 — Contactors

Siemens 3RT1015-2BG42 SIRIUS Power Contactor, S00, 24 VDC co

MPN3RT1015-2BG42

Siemens SIRIUS power contactor, size S00, 24 VDC coil, spring-loaded terminals, 45 mm wide, IP20 front, 73 mm depth.

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

3RT1015-2BG42 — Identification
ParameterValue
Contactor frame sizeS00
3RT1015-2BG42 — 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
3RT1015-2BG42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1015-2BG42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1015-2BG42 — 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
3RT1015-2BG42 — 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
3RT1015-2BG42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1015-2BG42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1015-2BG42 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

The coil is rated 125 V DC, with a pick-up ratio of 0.85 and drop-out ratio of 1.1. Closing and holding power are both 3.3 W DC. Main contacts are spring-loaded terminals (cage-clamp style), accepting 2x 0.25 to 2.5 mm² solid or stranded, or 2x 24 to 14 AWG. That saves panel-wiring time compared to screw terminals — no torque check, no loosening over thermal cycles.

Rated operational current at AC-12 (resistive) is 10 A maximum. For motor switching, the AC-2 rating at 400 V is 3 kW, and AC-4 at 400 V is 6.5 A — that covers reversing or plugging duty on smaller motors where high inrush and frequent switching are expected. DC switching capability is given per voltage: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. These are the make/break limits for DC loads, which arc harder than AC — so if you're switching DC solenoids or brakes, stay within these curves. AC switching at 230 V is 6 A, at 400 V is 3 A, at 500 V is 3.5 kW, and at 690 V is 4 kW. The 690 V rating is useful for 690 V line supplies common in mining or marine panels.

Width is 45 mm, depth 73 mm, height 60 mm. That means you can pack several S00 contactors on a rail segment without spacing gaps. Front and terminal protection is IP20 — finger-safe but not sealed. Mount inside a cabinet with at least IP54 for washdown areas.

This lets the panel designer choose between protection level and fuse economy. No instantaneous auxiliary contact is built in (0 auxiliary contacts). If you need feedback or status, add a separate auxiliary contact block that fits the S00 frame.

Frequently asked questions

What is the depth of 3RT1015-2BG42?

The depth is 73 mm. Width is 45 mm, height is 60 mm. Side-by-side mounting is allowed with 6 mm clearance.

Will 3RT1015-2BG42 drop into a panel specified for 3RT1015-1BB42?

Both are S00 frame size with the same DIN rail footprint and 45 mm width, so the mechanical fit is the same. The key difference is the terminal type: this one has spring-loaded terminals, while the -1BB42 has screw terminals. If the panel wiring was designed for screw terminals, the spring clamp is a direct fit but the wiring method changes — no re-drilling needed, just a different termination technique.

MPN
3RT1015-2BG42