Skip to main content
Siemens 3RT2326-2XB40-0LA2 — Contactors

Siemens 3RT2326-2XB40-0LA2 SIRIUS Power Contactor, 24 VDC, S

MPN3RT2326-2XB40-0LA2
Active

Siemens SIRIUS, power contactor, 3RT2326-2XB40-0LA2, S0 frame, 24 VDC coil, spring-type terminals, screw and snap-on 35 mm DIN rail mounting.

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

3RT2326-2XB40-0LA2 — Identification
ParameterValue
Contactor frame sizeS0
3RT2326-2XB40-0LA2 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V15.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V3 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2326-2XB40-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2326-2XB40-0LA2 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
3RT2326-2XB40-0LA2 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 63A (690V,100kA)
Short-circuit coordination type 2, fusegG: 20 A (690 V, 100 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2326-2XB40-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (1 ... 10 mm²)
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2326-2XB40-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2326-2XB40-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2326-2XB40-0LA2 — Mechanical
ParameterValue
Width60 mm
Height102 mm
Depth107 mm

Product details

It mounts by screw or snap-on onto 35 mm DIN rail per DIN EN 60715, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° forward/backward tilt — useful when panel layout forces an unconventional orientation. The coil draws a 3 A inrush peak and holds at 10 A at the 24 V rated value. Drop-out timing across the DC coil measures 30 to 50 ms, and the arcing time sits at 10 ms. These numbers matter for control logic sequencing — the dropout delay is long enough that a downstream PLC input seeing the auxiliary contact may need a debounce filter if the contactor is used in a fast-cycle application. The operating range covers most indoor industrial enclosures without forced cooling.

Auxiliary circuits take 0.5 to 2.5 mm² solid or stranded (2x per terminal). The spring-cage design eliminates periodic re-torquing common with screw terminals on high-vibration installations like conveyor drives or compressor skids. Clearance distances: 10 mm upward, forward, and downward; 6 mm at the side. The S0 frame measures 60 mm wide by 102 mm high by 107 mm deep — confirm these against your existing panel cutout or DIN-rail end-stop clearance before ordering.

Switching capacity and duty cycles

Maximum mechanical switching rate: 750 operations per hour under AC-1, AC-2, and AC-3 duty; 250 per hour under AC-4. The AC-4 rate is the limiting factor for plugging or inching applications — if your cycle profile includes frequent reversing or jogging, derate accordingly. Rated operational current at 24 VDC is 10 A; at 48 VDC and 60 VDC it drops to 2 A; at 110 VDC it is 1 A; at 125 VDC it is 0.9 A; at 220 VDC it is 0.3 A. The DC switching capacity follows the expected inverse relationship with voltage — verify your load's DC voltage and current against these points, not just the AC rating.

Frequently asked questions

What are the key dimensions of this contactor?

The S0 frame measures 60 mm wide, 102 mm high, and 107 mm deep. Clearance requirements are 10 mm upward, forward, and downward, and 6 mm at the side.

What wire sizes does the 3RT2326-2XB40-0LA2 accept?

Main contacts accept solid conductors from 1 to 10 mm² (2x per terminal). Auxiliary circuits accept 0.5 to 2.5 mm² solid or stranded (2x per terminal). Both use spring-cage termination.

Will the 3RT2326-2XB40-0LA2 drop into a panel specified around the 3RT2326-1BK80?

Both are S0-frame SIRIUS contactors with the same mounting footprint and DIN-rail attachment. The difference is the coil terminal type: spring-type on this order code versus screw-type on the 1BK80. If your panel wiring uses ring or fork terminals, the spring terminal may require a ferrule or a different termination method.

MPN
3RT2326-2XB40-0LA2