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Siemens 3RT1346-1AH20 — Contactors

Siemens SIRIUS 3RT1346-1AH20 Power Contactor, S3, 53 kW at 2

MPN3RT1346-1AH20

Siemens SIRIUS power contactor, 3RT1346-1AH20, size S3, 53 kW at 230 V 60 °C, screw-type terminals, 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

3RT1346-1AH20 — Identification
ParameterValue
Contactor frame sizeS3
3RT1346-1AH20 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
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
3RT1346-1AH20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz48 V
3RT1346-1AH20 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1346-1AH20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 250 A
Short-circuit coordination type 2, fusefuse gL/gG: 160 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1346-1AH20 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control 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, solid or stranded2x (2.5 ... 16 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 and 75 mm standard mounting rail
Side-by-side mountingYes
3RT1346-1AH20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1346-1AH20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1346-1AH20 — Mechanical
ParameterValue
Width93 mm
Height146 mm
Depth139 mm
3RT1346-1AH20 — Specifications
ParameterValue
At AC10 ... 25 ms

Product details

Solid wire acceptance: 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), max. 2x (0.75... 4 mm²). Stranded: 2x (10... 50 mm²). At 60 °C minimum permissible conductor is 35 mm².

Coil and switching characteristics

Coil operates at 50 Hz (rated 48 V) and 60 Hz (rated 48 V). The operating range at 50 Hz is 0.8 to 1.1 times rated voltage; at 60 Hz it is 0.85 to 1.1. Maximum mechanical switching rate at AC-1 duty is 1 000 operations per hour. Typical mechanical life is 10 000 000 operations.

Auxiliary contacts are rated for DC switching: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. These are the figures to use when sizing the control circuit — the DC ratings drop sharply with voltage, so a 24 VDC pilot light is fine, but a 220 VDC interlock will need a contactor with higher DC ratings or a separate relay.

The part carries a substance prohibitance date of 05/01/2012, aligning with RoHS and REACH compliance. Standard documentation includes the datasheet, CE declaration, and UL/CSA file information — request these at time of RFQ if your quality team needs them for the BOM package.

Frequently asked questions

What is the depth of this contactor?

The depth is 139 mm. Width is 93 mm, height is 146 mm. These dimensions are for the contactor body without protruding terminals or arc chutes.

What solid wire sizes does it accept?

Solid wire: 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), max. 2x (0.75... 4 mm²). Stranded: 2x (10... 50 mm²). AWG for main contacts: 2x (10... 1/0).

Will it drop into a panel specified around 3RT1036-1AB00?

Not without checking the mounting and wiring. The 3RT1346-1AH20 is a size S3 frame with larger terminal capacity (50 mm² stranded vs the smaller S0/S2 frame of the 3RT1036). The DIN-rail footprint may differ, and the lug size for the main conductors is larger. Verify the panel's gland plate clearance and busbar spacing before substituting.

What compliance documentation is available?

The part has a substance prohibitance date of 05/01/2012, indicating RoHS and REACH compliance. Pollution degree is 3. Standard documentation includes the datasheet, CE declaration, and UL/CSA file information. Request these at time of RFQ.

MPN
3RT1346-1AH20