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Siemens 3RT1024-1AL20-ZX95 — Contactors

Siemens 3RT1024-1AL20-ZX95 SIRIUS Power Contactor, S0, 10A A

MPN3RT1024-1AL20-ZX95

Siemens SIRIUS 3RT1024-1AL20-ZX95 power contactor, size S0, 10 A AC-12, 7.5 kW at 690 V, screw-type terminals, current production.

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

3RT1024-1AL20-ZX95 — Identification
ParameterValue
Contactor frame sizeS0
3RT1024-1AL20-ZX95 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V12.5 A
Rated value @ 400 V3 A
Rated value @ 500 V7.5 kW
Rated value @ 690 V7.5 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
3RT1024-1AL20-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RT1024-1AL20-ZX95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1024-1AL20-ZX95 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 63 A
Short-circuit coordination type 2, fusefuse gL/gG: 25 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1024-1AL20-ZX95 — 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
3RT1024-1AL20-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1024-1AL20-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1024-1AL20-ZX95 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth91 mm

Product details

IP20 on the front, IP00 at the terminals — that's typical for a panel-mounted contactor; the terminals need to be inside an enclosure.

Compared to the 3RT1023-1AL20, the 3RT1024 steps up in current handling. The 3RT1023 is a smaller frame; this one gives you the 10 A AC-12 rating and higher motor kW values (7.5 kW at 690 V versus the 1023's lower ratings). If your BOM called for the 1023 but your load calculations came in higher, this is the natural bump without changing rail footprint or terminal style.

Wire sizes: accepts 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded for control circuits, and up to 2x 10 mm² for the main power circuit. For short-circuit protection with Type 2 coordination, use a 25 A gL/gG fuse; for Type 1, a 63 A fuse. That's important for selectivity studies if you're coordinating upstream breakers.

Frequently asked questions

What is the closest functional second-source to 3RT1024-1AL20-ZX95?

The closest functional peer is the 3RT1023-1AL20, but it's a smaller frame with lower current ratings. The 3RT1024 gives you 10 A AC-12 and 7.5 kW at 690 V, while the 1023 steps down. If your panel was designed around the 1023 and you need more headroom, the 1024 drops into the same 45 mm DIN rail footprint with the same screw terminal style.

What is the depth of 3RT1024-1AL20-ZX95?

The depth is 91 mm, with a width of 45 mm and height of 85 mm. That's the standard S0 size footprint, so it fits existing panel cutouts and DIN rail spacing without surprises.

What wire sizes does the 3RT1024-1AL20-ZX95 accept?

For the main power circuit, it accepts 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²) stranded, with a maximum of 2x 10 mm². For control circuits, it takes 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded. AWG equivalents are 2x (16 to 12) or 2x (14 to 10) for mains, and 1x 8 maximum.

Will 3RT1024-1AL20-ZX95 drop into a panel specified around 3RT1023-1AL20 without rewiring?

Yes, the physical footprint is identical — both are size S0 with 45 mm width and the same DIN rail mounting. The terminal layout and screw-type connections are the same. However, verify your fuse coordination: the 3RT1024 may require a larger fuse (25 A gL/gG for Type 2 coordination versus whatever the 1023 called for) if you're running higher loads.

MPN
3RT1024-1AL20-ZX95