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Siemens 3RT1016-1KF42 — Contactors

Siemens 3RT1016-1KF42 SIRIUS Power Contactor, S00, 4.5 kW at

MPN3RT1016-1KF42

Siemens SIRIUS power contactor, size S00, order code 3RT1016-1KF42, rated 4.5 kW at 500 V, 5.5 kW at 690 V, screw-type terminals, snap-on 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

3RT1016-1KF42 — Identification
ParameterValue
Contactor frame sizeS00
3RT1016-1KF42 — 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
3RT1016-1KF42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1016-1KF42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1016-1KF42 — 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
3RT1016-1KF42 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mountingYes
3RT1016-1KF42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RT1016-1KF42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1016-1KF42 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

Rated for 4.5 kW at 500 V and 5.5 kW at 690 V, this contactor handles induction motor switching in AC-2 and AC-4 duty classes — the AC-4 rating of 8.5 A at 400 V tells you it can manage frequent inching or plugging without derating the thermal capacity. The built-in varistor surge suppressor clamps coil transients at DC holding power of 2.3 W, which keeps the control circuit clean and reduces EMI radiated back into the panel wiring.

The 45 mm wide body with 57.5 mm height and 72 mm depth fits standard DIN-rail enclosures. Terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid/stranded conductors, with AWG equivalents 2x (20–16), 2x (18–14), 1x 12 for the main contacts.

Environmental and coordination

For Type 1 coordination (contactor may need replacement after fault), a 35 A fuse is allowed.

No second-source cross-reference is officially declared, but the SIRIUS S00 platform is widely stocked.

Frequently asked questions

What are the key ratings for this contactor?

It is rated 4.5 kW at 500 V and 5.5 kW at 690 V for motor loads, with an AC-4 rating of 8.5 A at 400 V for frequent switching. The coil holds at 110 V rated value, with DC holding power of 2.3 W.

What wire sizes does the terminal accept?

Screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid/stranded, with AWG equivalents 2x (20–16), 2x (18–14), 1x 12 for main contacts.

What fuse coordination is recommended?

For Type 2 coordination (no damage), use a gL/gG fuse rated 20 A. For Type 1 coordination (contactor may be sacrificed), a 35 A fuse is allowed.

MPN
3RT1016-1KF42