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Siemens 3RT2016-2UB42 — Contactors

Siemens 3RT2016-2UB42 SIRIUS S00 Power Contactor, 24 VDC Coi

MPN3RT2016-2UB42
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Siemens SIRIUS S00 power contactor, 3RT2016-2UB42, 24 V DC coil, 10 A rated operational current, spring-type terminals, screw and snap-on 35 mm DIN rail mount.

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

3RT2016-2UB42 — Identification
ParameterValue
Contactor frame sizeS00
3RT2016-2UB42 — 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
3RT2016-2UB42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2016-2UB42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2016-2UB42 — 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)
3RT2016-2UB42 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid0.5 ... 4 mm²
Conductor cross-section, solid or stranded2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2016-2UB42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RT2016-2UB42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2016-2UB42 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm

Product details

It's rated for 1 000 operations per hour at AC-1, 750/h at AC-3, and 250/h at AC-4 — so you can push it hard on motor starting duty but need to back off for plugging or inching cycles. The coil uses spring-type terminals; the main and auxiliary contacts accept 0.5 to 4 mm² solid or stranded wire, doubled up at 2x (0.5 to 4 mm²). Mounts via screw or snap-on to 35 mm DIN rail per EN 60715, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward — handy when you're shoehorning it into a crowded enclosure.

Clearance and mounting

That storage floor matters if the spare sits in an unheated warehouse through winter.

Frequently asked questions

What wire sizes does the 3RT2016-2UB42 accept?

Solid and stranded conductors from 0.5 to 4 mm², and you can double up two conductors of the same range (2x 0.5 to 4 mm²) per terminal.

Where can I buy 3RT2016-2UB42 and how is it quoted?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm price and lead time.

What are the switching frequency limits for this contactor?

At AC-1 (resistive loads) it's rated for 1 000 operations per hour; at AC-3 (motor starting) and AC-3e, 750/h; at AC-2, 750/h; at AC-4 (plugging/inching), 250/h.

Will 3RT2016-2UB42 drop into a panel specified for 3RT2016-1AG62?

Both are S00 frame contactors with the same 45 mm width and DIN-rail mounting. The main difference is coil voltage — the 2UB42 is 24 VDC, while the 1AG62 is a different coil variant. Panel cutouts and busbar spacing are identical, but verify coil supply and auxiliary wiring before swapping.

MPN
3RT2016-2UB42