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Siemens 3RT1016-2GG21 — Contactors

Siemens 3RT1016-2GG21 SIRIUS Power Contactor, Size S00, 4 kW

MPN3RT1016-2GG21

Siemens SIRIUS power contactor, size S00, 3RT1016-2GG21, 45 mm width, spring-loaded terminals, rated 4 kW at AC-2 400 V, 8.5 A at AC-4 400 V, 30 million mechanical cycles.

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

3RT1016-2GG21 — Identification
ParameterValue
Contactor frame sizeS00
3RT1016-2GG21 — 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
3RT1016-2GG21 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1016-2GG21 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1016-2GG21 — 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
3RT1016-2GG21 — 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
3RT1016-2GG21 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1016-2GG21 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1016-2GG21 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth114 mm

Product details

Panel fit and switching duty

The 3RT1016-2GG21: Spring-loaded terminals on the main current circuit accept 2x (0.25 to 2.5 mm²) solid or stranded wire, or 2x (24 to 14 AWG). That's a clean push-in connection for panel builders — no screw torque to verify, no loose strands. Rated for AC-2 duty at 4 kW on 400 V (slip-ring motor starting) and AC-4 at 8.5 A on 400 V (plugging/inching). For general resistive loads (AC-1), it handles 10 A at 230 V. The 50 Hz coil holds at 0.8 to 1.1 x rated voltage; 60 Hz coil holds at 0.85 to 1.1 x rated voltage. Mechanical endurance is listed at 30 million cycles typical — that's a long service life for conveyor or pump cycling applications.

Terminals carry IP20 finger protection; the front of the device is also IP20. Altitude rating goes to 2 000 m without derating.

Frequently asked questions

What are the key ratings for 3RT1016-2GG21?

It's a Size S00 power contactor rated 4 kW at AC-2 400 V, 8.5 A at AC-4 400 V, and 10 A at AC-1 230 V. Mechanical endurance is 30 million cycles.

Will 3RT1016-2GG21 drop into a panel specified for 3RT1016-2GG22?

Both are Size S00 contactors with the same 45 mm width and DIN rail mounting, so the mechanical footprint is identical. The difference is in the coil — 3RT1016-2GG21 has a 50/60 Hz AC coil; 3RT1016-2GG22 uses a different coil variant. Verify coil voltage compatibility before swapping.

Where can I buy 3RT1016-2GG21?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote.

MPN
3RT1016-2GG21