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Siemens 3RH1344-2CB00-0KA0-ZW97 — Contactors

Siemens SIRIUS 3RH1344-2CB00-0KA0-ZW97 Auxiliary Contactor,

MPN3RH1344-2CB00-0KA0-ZW97

Siemens SIRIUS, auxiliary contactor, size S00, 4 NO instantaneous contacts, 24 V 50/60 Hz coil, screw and snap-on mounting, IP20 front, 114 x 45 x 60 mm.

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

3RH1344-2CB00-0KA0-ZW97 — Identification
ParameterValue
Contactor frame sizeS00
3RH1344-2CB00-0KA0-ZW97 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1344-2CB00-0KA0-ZW97 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz24 V
3RH1344-2CB00-0KA0-ZW97 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1344-2CB00-0KA0-ZW97 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting
3RH1344-2CB00-0KA0-ZW97 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
3RH1344-2CB00-0KA0-ZW97 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1344-2CB00-0KA0-ZW97 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth114 mm

Product details

It carries four normally open (4 NO) instantaneous contacts, with no delayed, lagging, or make-before-break switching — a straight four-pole NO block for straightforward interlocking or PLC output extension. The coil is rated 24 V at both 50 Hz and 60 Hz, with a tolerance range of 0.8...1.1 × rated voltage at 50 Hz and 0.85...1.1 at 60 Hz, so it holds in across a typical control supply sag. A built-in varistor surge suppressor handles coil transients — no external snubber needed for standard PLC or relay driver outputs. Switching capacity covers a wide voltage range: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V AC, so it handles everything from low-voltage DC interposing relays up to 690 V motor control circuit isolation. The contact reliability spec — one incorrect switching operation per 100 million at 17 V, 1 mA — means it is trustworthy for dry-contact PLC inputs where low-energy switching is critical.

Terminals accept solid or stranded wire from 0.25 to 2.5 mm² (2 × conductors per clamp), which covers common control wiring sizes. Shock resistance is 10g at 5 ms and 5g at 10 ms, adequate for most machine-mounted panels.

Frequently asked questions

What is the closest functional alternative to 3RH1344-2CB00-0KA0-ZW97?

The 3RH2362-2AF00 is a peer auxiliary contactor in the SIRIUS family. The key difference is contact configuration: the 3RH1344 has 4 NO, while the 3RH2362 has a different NO/NC count. Verify your circuit needs before substituting.

What is the depth of 3RH1344-2CB00-0KA0-ZW97?

The depth is 114 mm, with a width of 45 mm and height of 60 mm.

What wire sizes does the 3RH1344-2CB00-0KA0-ZW97 accept?

Each terminal accepts 2 × conductors from 0.25 to 2.5 mm² solid or stranded.

What compliance documentation does this part carry?

The part is RoHS compliant per the substance prohibition date of 07/01/2006. Standard SIRIUS documentation includes CE and UL/CSA certifications per Siemens catalog data.

MPN
3RH1344-2CB00-0KA0-ZW97