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Siemens 3RT1015-1BF41 — Contactors

Siemens 3RT1015-1BF41 SIRIUS Power Contactor, 110 V DC Coil,

MPN3RT1015-1BF41

Siemens SIRIUS power contactor, size S00, 3RT1015-1BF41, 110 V DC coil, 45 mm wide, screw terminals, IP20 finger-safe protection.

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

3RT1015-1BF41 — Identification
ParameterValue
Contactor frame sizeS00
3RT1015-1BF41 — 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
3RT1015-1BF41 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1015-1BF41 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1015-1BF41 — 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
3RT1015-1BF41 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mountingYes
3RT1015-1BF41 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1015-1BF41 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1015-1BF41 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

Switching capacity depends on duty. In AC-3 motor starting at 400 V it handles 3 kW; in AC-4 (inching/plugging) at 400 V it's rated 6.5 A. For resistive loads (AC-1 / AC-12) the main contacts carry up to 10 A. The 1 NC auxiliary contact is built in — no add-on block needed for a basic feedback signal.

Mounting and integration into a panel

At 45 mm wide, 57.5 mm tall, and 72 mm deep, the S00 footprint fits tightly on a DIN rail — side-by-side mounting is allowed. The 6 mm clearance to adjacent devices on the side is the minimum for heat dissipation. Terminals are IP20 finger-safe screw-type, accepting 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded, max 2x 4 mm². For AWG: 2x (20 to 16) solid, 2x (18 to 14) stranded, single 12 AWG. Strip length and torque are standard for this terminal class — the panel wireman will recognize the cage.

Short-circuit coordination and protection

For Type 1 coordination (contactor may need replacement but no hazard), fuse gL/gG 35 A. That's the sizing rule for the panel builder: match the fuse to the coordination type your spec calls for.

Frequently asked questions

What is the depth of 3RT1015-1BF41?

The depth is 72 mm, with a width of 45 mm and height of 57.5 mm — the standard S00 footprint.

What wire sizes does the 3RT1015-1BF41 accept?

Screw terminals accept 2x (0.5 to 1.5 mm²) solid, 2x (0.75 to 2.5 mm²) stranded, max 2x (0.75 to 4 mm²). AWG equivalents: 2x (20 to 16) solid, 2x (18 to 14) stranded, single 12 AWG.

Will 3RT1015-1BF41 drop into a panel specified around 3RT1015-1BB42 without rewiring?

Both are size S00 contactors on the same 45 mm DIN-rail footprint, so the mechanical fit is identical. The difference is the coil voltage: 1BF41 is 110 V DC, while 1BB42 is a different coil variant. Check the coil voltage matches your control circuit before swapping.

MPN
3RT1015-1BF41