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Siemens 3RT1015-2BB42-ZW95 — Contactors

Siemens 3RT1015-2BB42-ZW95 SIRIUS Power Contactor, 24 VDC Co

MPN3RT1015-2BB42-ZW95

Siemens SIRIUS power contactor, size S00, 24 VDC coil, spring-loaded terminals, 45 mm width, 73 mm depth, 60 mm height.

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

3RT1015-2BB42-ZW95 — Identification
ParameterValue
Contactor frame sizeS00
3RT1015-2BB42-ZW95 — 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
3RT1015-2BB42-ZW95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1015-2BB42-ZW95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1015-2BB42-ZW95 — 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
3RT1015-2BB42-ZW95 — 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
3RT1015-2BB42-ZW95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1015-2BB42-ZW95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1015-2BB42-ZW95 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth73 mm

Product details

Spring-loaded terminals on the main current circuit accept 2x (0.25 to 2.5 mm²) solid or stranded wire, or 2x (24 to 14 AWG). That's the same termination as the 3RT1015-1BB42 variant, so a panel wired for the screw-terminal version won't need terminal block changes — just a different wiring habit (no screwdriver torque check).

Ratings that matter for motor switching

Rated operational current at 24 V is 10 A (AC-12), which covers control transformer and resistive loads at that voltage. For motor duty at 400 V, the AC-2 rating is 3 kW, and AC-4 at 400 V is 6.5 A — that's the heavy inrush/plugging duty cycle rating. Type 1 coordination allows up to 35 A. That's the difference between the contactor surviving a fault (Type 2) versus needing replacement after a fault (Type 1). For most production lines, Type 2 is the standard — the 20 A fuse limit is what you'll spec into the BOM.

The IP20 finger-safe protection on the front and terminals is standard for enclosed panels; no special sealing needed inside a cabinet.

Frequently asked questions

What's the difference between this and the 3RT1015-1BB42?

The 3RT1015-2BB42-ZW95 has spring-loaded terminals on the main circuit; the 3RT1015-1BB42 uses screw terminals. Both are size S00 with the same 24 VDC coil, same mounting footprint, and same 45 mm width. If your panel is wired for screw terminals, the spring-clamp version drops in without rewiring the bus — just different termination technique.

What are the key ratings for motor switching?

At 400 V, AC-2 rated power is 3 kW; AC-4 rated current is 6.5 A. The 24 V coil draws 3.3 W. Type 2 coordination requires a 20 A gL/gG fuse.

What compliance documentation is available?

The product carries the DIN EN 81346-2 reference code Q. Standard Siemens SIRIUS documentation includes CE, UL, CSA, and IEC compliance per the series. Specific certificates are available through the manufacturer's documentation portal.

MPN
3RT1015-2BB42-ZW95