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Siemens 3RT1016-1BA41 — Contactors

Siemens 3RT1016-1BA41 SIRIUS Power Contactor, S00, 12 VDC Co

MPN3RT1016-1BA41

Siemens SIRIUS, power contactor, 3RT1016-1BA41, size S00, 12 VDC coil, 10 A AC-12, 4 kW AC-2 at 400 V, screw terminals, DIN rail mount.

Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT1016-1BA41 — Identification
ParameterValue
Contactor frame sizeS00
3RT1016-1BA41 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V8.5 A
Rated value @ 400 V3 A
Rated value @ 500 V4.5 kW
Rated value @ 690 V5.5 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
3RT1016-1BA41 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1016-1BA41 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1016-1BA41 — 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
3RT1016-1BA41 — 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
3RT1016-1BA41 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1016-1BA41 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1016-1BA41 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

The AC-12 maximum operating current is 10 A, suitable for resistive loads and control transformers. Coil pick-up is guaranteed at 85 % of rated voltage (10.2 VDC), and drop-out occurs at 110 % (13.2 VDC). The DC coil consumes 3.3 W during both closing and holding, so no power reduction after pick-up — factor that into your control transformer sizing.

Mounting and integration into a panel

A 6 mm clearance to the side of the enclosure or other components is required only if you need access to the screw terminals. Main circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) solid or stranded conductors. For AWG, that's 2x (20 to 16), 2x (18 to 14), or 1x 12. The auxiliary contact terminals accept the same range.

For short-circuit coordination, Type 1 requires a 35 A gL/gG fuse, and Type 2 requires a 20 A gL/gG fuse.

Auxiliary contact ratings and environmental limits

The built-in instantaneous auxiliary contact (1 N/O) is rated at 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, and 3 A at 400 V — all at the respective rated values. These are the maximum switching currents; derate for inductive loads like relay coils.

Frequently asked questions

What is the closest functional alternative to 3RT1016-1BA41?

The 3RT1015-1BB42 is a size S00 contactor with a 24 VDC coil rather than 12 VDC. It shares the same frame, terminal layout, and DIN rail footprint, so it drops into the same panel without rewiring — but you must change the coil supply voltage.

What are the key ratings for this contactor?

AC-2 motor power at 400 V is 4 kW. AC-4 switching current at 400 V is 8.5 A. AC-12 maximum operating current is 10 A. Coil is 12 VDC, 3.3 W holding. Mechanical endurance is 30 million cycles.

What conductor sizes does the screw terminal accept?

Main 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) solid or stranded. AWG equivalents are 2x (20 to 16), 2x (18 to 14), or 1x 12.

What is the depth of this contactor?

The depth is 72 mm, with a width of 45 mm and height of 57.5 mm.

MPN
3RT1016-1BA41