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Siemens 3RT7014-1AN21 — Contactors

Siemens 3RT7014-1AN21 Contactor, Size S00, 3-pole, 690 V

MPN3RT7014-1AN21

Siemens SIRIUS 3RT7014-1AN21 Size S00 contactor, 3-pole, screw-type terminals, 690 V rated insulation, IP20 finger-safe.

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

Specifications

3RT7014-1AN21 — Identification
ParameterValue
Contactor frame sizeS00
3RT7014-1AN21 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
3RT7014-1AN21 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.27
Rated value @ 50 Hz220 V
3RT7014-1AN21 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliabilityacceptability for PLC control (17 V, 5 mA)
3RT7014-1AN21 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegL/gG NH 3NA: 35 A
Short-circuit coordination type 2, fusegL/gG NH 3NA: 20 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT7014-1AN21 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 DIN rail according to DIN EN 50022
Side-by-side mountingYes
3RT7014-1AN21 — Environmental
ParameterValue
Operating temperature range-10 ... +55 °C
Storage temperature range-25 ... +70 °C
Installation altitude, max.2 000 m
3RT7014-1AN21 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

The contactor is rated for AC-3 and AC-3e switching at up to 690 V, with a maximum operating rate of 750 operations per hour under AC-3 load and 250 per hour under the heavier AC-4 duty (plugging/inching). The AC-3 rating governs motor starting — this is the figure a panel builder sizes against. For fuse coordination, the evidence lists two protection levels: type 2 coordination requires a 20 A gL/gG NH fuse (3NA series), while type 1 allows up to 35 A. That distinction matters for selectivity studies: type 2 keeps the contactor serviceable after a fault, type 1 may sacrifice it. The DC magnet coil draws 0.8 W on closing and holds at 0.27 W — a low holding power that reduces heat inside a crowded enclosure.

Integration notes

Operating temperature range is -10 to +55 °C; storage from -25 to +70 °C. The auxiliary switch option is available as a product extension, so the same base contactor can be field-fitted with additional contacts without replacing the unit.

Frequently asked questions

What are the key dimensions for panel layout?

Width is 45 mm, height 57.5 mm, depth 72 mm. The 45 mm width is the critical DIN-rail footprint for spacing in an enclosure.

Does this contactor use screw terminals or spring-cage?

Both the main current circuit and the auxiliary/control circuit use screw-type terminals, not spring-cage.

What is the insulation voltage and surge rating?

Rated insulation voltage is 690 V, and surge voltage resistance is rated at 6 kV.

Can it be mounted side-by-side without derating?

Yes, side-by-side mounting is permitted with no gap required between units on the same DIN rail.

MPN
3RT7014-1AN21