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Siemens 3RT1016-1BA42 — Contactors

Siemens 3RT1016-1BA42 SIRIUS Power Contactor, Size S00, 10A

MPN3RT1016-1BA42

Siemens SIRIUS power contactor, Size S00, 3RT1016-1BA42, 10 A AC-12, 4.5 kW / 5.5 kW motor ratings, screw terminals, 45 mm width, IP20.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT1016-1BA42 — Identification
ParameterValue
Contactor frame sizeS00
3RT1016-1BA42 — 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
3RT1016-1BA42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1016-1BA42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1016-1BA42 — 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
3RT1016-1BA42 — 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
3RT1016-1BA42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1016-1BA42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1016-1BA42 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

Rated for AC-12 duty at 10 A maximum, this contactor handles resistive and lightly inductive loads in control circuits. For motor switching, it carries 4.5 kW at 400 V (AC-2) and 5.5 kW at 690 V, covering common three-phase induction motors in that power band.

For motor duty, look at the AC-2 rating (4 kW at 400 V) which covers slip-ring motors, or the AC-4 rating (8.5 A at 400 V) for reversing or plugging duty. The 4.5 kW at 400 V and 5.5 kW at 690 V ratings are the practical motor sizing numbers for standard induction motors. DC switching capability is specified across voltages: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. That covers DC coil circuits and small DC load switching in mixed-voltage panels. The magnet coil draws 3.3 W both during closing and holding — a DC-operated coil that doesn't spike on pickup, which simplifies the power supply sizing in the panel. Type 2 coordination requires a 20 A gL/gG fuse; Type 1 allows a 35 A fuse. That's the short-circuit protection the upstream breaker or fuse must provide to keep the contactor from welding on a fault.

Physical integration

Depth is 72 mm, which clears most standard enclosure depths. Screw-type terminals on the main circuit accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) — covering standard control wiring. AWG equivalents are 2x (20 to 16), 2x (18 to 14), and 1x 12. Front and terminal protection is IP20, meaning finger-safe but not washdown-rated.

Frequently asked questions

What are the key ratings for this contactor?

AC-12 rated 10 A maximum for resistive loads. Motor ratings: 4.5 kW at 400 V, 5.5 kW at 690 V. DC switching: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. Coil consumption is 3.3 W DC.

What fuse coordination is required?

Type 2 coordination requires a 20 A gL/gG fuse; Type 1 coordination allows a 35 A gL/gG fuse.

What are the mounting dimensions?

Width 45 mm, height 57.5 mm, depth 72 mm. Mounts on 35 mm DIN rail per DIN EN 50022. Side-by-side mounting requires 6 mm spacing.

What wire sizes does the screw terminal accept?

Main circuit 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: 2x (20 to 16), 2x (18 to 14), 1x 12.

MPN
3RT1016-1BA42