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Siemens 3RT2545-1AP00 — Contactors

Siemens 3RT2545-1AP00 SIRIUS Contactor, Size S3, 24 V 10 A

MPN3RT2545-1AP00
Active

Siemens SIRIUS contactor, size S3, 3RT2545-1AP00, 24 V rated 10 A, 230 V rated 6 A, 400 V rated 3 A, screw-type terminals, DIN rail snap-on 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

3RT2545-1AP00 — Identification
ParameterValue
Contactor frame sizeS3
3RT2545-1AP00 — 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 @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2545-1AP00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.38
Rated value @ 50 Hz230 V
3RT2545-1AP00 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts2
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2545-1AP00 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 250 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegR: 250 A (690 V, 100 kA)
Aux. switch short-circuit protection, fusefuse gG: 10 A
3RT2545-1AP00 — 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)
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2545-1AP00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2545-1AP00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2545-1AP00 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth152 mm
3RT2545-1AP00 — Specifications
ParameterValue
At AC11 ... 21 ms

Product details

It mounts on a 35 mm DIN rail per DIN EN 60715 with a screw and snap-on fastening, and the mounting position allows +/-180° rotation on a vertical surface plus +/-22.5° tilt forward or backward — useful when you're squeezing it into a crowded enclosure. The coil uses screw-type terminals, and an auxiliary switch is included on the unit.

At 24 V rated value it carries 10 A; at 230 V rated value it switches 6 A; at 400 V rated value it handles 3 A; and at 690 V rated value it's rated for 1 A. These are the AC switching currents for the main contacts — the 24 V figure matters most for low-voltage control circuits, while the 230 V and 400 V ratings cover standard European line voltages. The contactor's mechanical life is rated at 10,000,000 operations typical, and the maximum switching frequency at AC-1 is 900 cycles per hour.

Wiring and panel integration

Solid wire connections accept 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²). Stranded wire connections accept 2x (6 to 16 mm²), 2x (10 to 50 mm²), and 1x (10 to 70 mm²) — the larger sizes cover the main power circuit. Side-by-side mounting is allowed, with clearances: 10 mm upwards, 10 mm downwards, 10 mm at the side, 0 mm forwards, 0 mm backwards. Dimensions are 140 mm height, 70 mm width, 152 mm depth.

Frequently asked questions

Where can I buy the 3RT2545-1AP00 and get a price?

The 3RT2545-1AP00 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ to get a firm price and lead time.

What is the depth of the 3RT2545-1AP00?

The depth is 152 mm, with a width of 70 mm and height of 140 mm.

What wire sizes does the 3RT2545-1AP00 accept?

Solid wire: 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²). Stranded wire: 2x (6 to 16 mm²), 2x (10 to 50 mm²), and 1x (10 to 70 mm²).

MPN
3RT2545-1AP00