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Siemens 3RT2016-1BA42 — Contactors

Siemens 3RT2016-1BA42 SIRIUS Power Contactor, Size S00, 12 V

MPN3RT2016-1BA42
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Siemens SIRIUS power contactor, size S00, 12 V DC coil, screw-type terminals, 45 mm width, 73 mm depth, 58 mm height.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT2016-1BA42 — Identification
ParameterValue
Contactor frame sizeS00
3RT2016-1BA42 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V8.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V1 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2016-1BA42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2016-1BA42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2016-1BA42 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 35A (690V,100kA), aM: 20A (690V,100kA), BS88: 35A (415V,80kA)
Short-circuit coordination type 2, fusegG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A (415V, 80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2016-1BA42 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid0.5 ... 4 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 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 60715
Side-by-side mountingYes
3RT2016-1BA42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2016-1BA42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2016-1BA42 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm

Product details

The coil picks up at 0.8 times rated voltage, and the DC operate time runs 7 to 13 ms with an arcing time of 10 to 15 ms.

Size S00 gives you a 45 mm wide, 58 mm tall, 73 mm deep package — fits standard 45 mm-wide DIN-rail slots. The 12 V DC coil is a specific control voltage; verify your control transformer or PLC output matches. The screw-type terminals accept solid or stranded wire from 0.5 to 4 mm², and up to two conductors per clamp (2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm²). That covers most panel wiring up to 4 mm² without needing ferrules. The contactor is rated for 1 hp at 230 V AC, and for DC switching at various voltages: 10 A at 24 V DC, 2 A at 48 V and 60 V DC, 1 A at 110 V DC, 0.9 A at 125 V DC, 0.3 A at 220 V DC, and 3 A at 400 V DC. The main contact rating is listed as 20–12 (likely the AC-3 / AC-1 current range). These DC ratings are the ones that govern real-world switching of DC loads like solenoid valves or DC motor brakes — the AC horsepower rating alone doesn't capture that. Maximum operating frequency varies by duty: 1000 cycles per hour for AC-1 (resistive), 750/h for AC-2 and AC-3 (motor starting, slip-ring and squirrel-cage), 750/h for AC-3e, and 250/h for AC-4 (plugging, inching). The auxiliary switch is present, so you have a spare N/O or N/C set for status feedback or interlocking.

Frequently asked questions

What is the depth of 3RT2016-1BA42?

The depth is 73 mm, with a width of 45 mm and height of 58 mm.

What wire sizes does the 3RT2016-1BA42 accept?

The screw-type terminals accept solid or stranded wire from 0.5 to 4 mm², and up to two conductors per clamp (2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm²).

Will 3RT2016-1BA42 drop into a panel specified for 3RT2016-1AG62 without rewiring?

Both are size S00 contactors with the same 45 mm width, 58 mm height, and 73 mm depth, so the mechanical footprint is identical. However, the coil voltage differs — 3RT2016-1BA42 has a 12 V DC coil, while the 3RT2016-1AG62 uses a different coil voltage. Verify your control circuit voltage before substitution.

MPN
3RT2016-1BA42