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Siemens 3RT1516-2AN20 — Contactors

Siemens 3RT1516-2AN20 SIRIUS Power Contactor, Size S00, 24 V

MPN3RT1516-2AN20

Siemens SIRIUS power contactor, Size S00, 3RT1516-2AN20, 24 VDC coil, spring-loaded terminals, 45 mm width, DIN rail mount.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RT1516-2AN20 — Identification
ParameterValue
Contactor frame sizeS00
3RT1516-2AN20 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
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
3RT1516-2AN20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz4.4 V·A
Rated value @ 50 Hz220 V
3RT1516-2AN20 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts2
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1516-2AN20 — 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
3RT1516-2AN20 — 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
3RT1516-2AN20 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1516-2AN20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RT1516-2AN20 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth72 mm
3RT1516-2AN20 — Specifications
ParameterValue
At AC4 ... 30 ms

Product details

The coil is rated 24 VDC, pulling 4.4 VA at 50 Hz and drawing 10 A at 24 V for the main contacts. At 400 V it switches 3 A, and at 230 V it handles 6 A — so for a typical 400 V three-phase motor circuit this contactor is sized for smaller loads up to roughly 2 kW, depending on the duty class. Spring-loaded terminals on the main circuit accept 2x 0.25 to 2.5 mm² solid or stranded wire — no screw torque to verify, which speeds up panel wiring and reduces the chance of a loose connection on a vibrating line.

Snap it onto a 35 mm DIN rail or screw-mount it — the Size S00 footprint (72 mm deep, 45 mm wide, 60 mm tall) leaves room for auxiliary contact blocks alongside. That covers most panel layouts, including swing frames and angled sub-panels. Front face is IP20 — finger-safe for the panel interior, but not for washdown environments.

Switching Performance and Ratings

Above that, air density affects arc extinction and dielectric strength — not an issue for most plants, but worth noting for high-altitude installations.

Frequently asked questions

What is the closest functional alternative to 3RT1516-2AN20?

The 3RT1016-2AP02 is a close sibling in the same SIRIUS S00 family, but it uses screw terminals instead of spring-loaded terminals. The 3RT1516-2AN20's spring terminals save wiring time and eliminate torque checks; if your panel already uses screw terminals and you have a stock of ferruled wires, the 3RT1016-2AP02 is a drop-in fit on the same DIN rail footprint.

MPN
3RT1516-2AN20