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Siemens 3RT1015-2HB42 — Contactors

Siemens 3RT1015-2HB42 SIRIUS Power Contactor, 24 V DC Coil,

MPN3RT1015-2HB42

Siemens SIRIUS, power contactor, 3RT1015-2HB42, Size S00, 24 V DC coil, 10 A DC-1, spring-loaded terminals, 45 mm width.

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

3RT1015-2HB42 — Identification
ParameterValue
Contactor frame sizeS00
3RT1015-2HB42 — 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
3RT1015-2HB42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1015-2HB42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1015-2HB42 — 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
3RT1015-2HB42 — 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
3RT1015-2HB42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RT1015-2HB42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1015-2HB42 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

Siemens SIRIUS 3RT1015-2HB42 — 24 V DC Power Contactor, Size S00

It carries a 24 V DC coil with a holding power of 2.3 W, and its spring-loaded terminals accept 2x (0.25... 2.5 mm²) solid or stranded wire — no ferrule crimping needed for the main circuit. Rated for AC-2 duty at 3 kW / 400 V, this contactor handles slip-ring motor switching where the load current stays below make/break stress.

The spring-loaded terminals for the main current circuit accept 2x (0.25... 2.5 mm²) or 2x (24... 14 AWG) conductors; the control circuit uses the same terminal type. IP20 finger-safe protection on the front and terminals means the contactor can sit exposed inside an IP54 enclosure without additional shrouding.

These values govern the short-circuit protection sizing in the panel design.

Frequently asked questions

How do I get pricing and availability for 3RT1015-2HB42?

Pricing and stock levels are confirmed at quote time. Submit an RFQ through this listing; the sourcing team returns current availability and a firm price for the quantity needed.

Will 3RT1015-2HB42 drop into a panel specified around 3RT1015-1BB42 without rewiring?

Both are Size S00 SIRIUS contactors with the same 45 mm width and DIN-rail footprint, so the mechanical fit is identical. The key difference is the coil voltage: 3RT1015-2HB42 uses a 24 V DC coil, while 3RT1015-1BB42 uses a 24 V AC coil. If the panel supplies 24 V DC control power, the swap is direct; if the panel was wired for 24 V AC, the coil will not hold in and you must change the control supply or select the AC-coil variant.

What is the depth of 3RT1015-2HB42?

The depth is 73 mm, measured from the DIN-rail mounting surface to the front of the contactor.

What wire sizes do the spring-loaded terminals accept?

The spring-loaded terminals accept 2x (0.25... 2.5 mm²) solid or stranded conductors, or 2x (24... 14 AWG).

MPN
3RT1015-2HB42