Skip to main content
Log in
Siemens 3RT1015-1KB41 — Contactors

Siemens 3RT1015-1KB41 SIRIUS Power Contactor, S00, 24 VDC, 3

MPN3RT1015-1KB41

Siemens SIRIUS power contactor, size S00, 24 VDC coil, 3RT1015-1KB41, screw terminals, 3 kW at 400 V AC-2, snap-on DIN rail.

$511.15Ref. price · indicative, final on quote
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

3RT1015-1KB41 — Identification
ParameterValue
Contactor frame sizeS00
3RT1015-1KB41 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
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
3RT1015-1KB41 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1015-1KB41 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1015-1KB41 — 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
3RT1015-1KB41 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control 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, solid or stranded2x (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)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1015-1KB41 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RT1015-1KB41 — Environmental
ParameterValue
Installation altitude, max.2 000 m
3RT1015-1KB41 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

Depth is 72 mm — account for that when routing wires past adjacent devices.

Coil pulls 2.3 W on DC for both closing and holding — no inrush spike to stress the PLC output driving it. The integrated varistor surge suppressor handles back-EMF from the coil, so you don't need an external flyback diode across the control wiring.

Main contacts accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) — fine for motor leads up to the 3 kW rating. Auxiliary terminals take the same range. AWG equivalents: 2x 20-16, 2x 18-14, or 1x 12.

Protection and environmental

For short-circuit protection, Type 2 coordination requires a 20 A gL/gG fuse; Type 1 allows up to 35 A.

Frequently asked questions

What is the depth of this contactor?

The depth is 72 mm. This is the dimension from the DIN rail mounting surface to the front of the contactor body.

What wire sizes does the 3RT1015-1KB41 accept?

Main and auxiliary screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²). AWG equivalents are 2x 20-16, 2x 18-14, or 1x 12.

What is the AC-2 motor rating of this contactor?

At 400 V AC-2 duty, it's rated for 3 kW. AC-2 is the standard for wound-rotor motors where the contactor makes and breaks the stator current.

What compliance documentation is available for the 3RT1015-1KB41?

The part carries a RoHS substance prohibition date of July 1, 2006, indicating RoHS compliance. It also references IEC 81346-2 with reference code Q for power switching equipment.

MPN
3RT1015-1KB41