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Siemens 3RT2448-1AP00 — Contactors

Siemens 3RT2448-1AP00 SIRIUS Contactor, Size S3, AC Coil

MPN3RT2448-1AP00
Active

Siemens SIRIUS 3RT2448-1AP00 contactor, Size S3, AC coil voltage type, screw and snap-on mounting onto 35 mm DIN rail, 1 NO instantaneous auxiliary contact, 152 mm depth, 70 mm width, 140 mm height.

Siemens 3RT2448-1AP00 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT2448-1AP00 — Identification
ParameterValue
Contactor frame sizeS3
3RT2448-1AP00 — 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
3RT2448-1AP00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.38
Rated value @ 50 Hz230 V
3RT2448-1AP00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2448-1AP00 — 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, fusegG: 10 A (500 V, 1 kA)
3RT2448-1AP00 — Connection & Mounting
ParameterValue
Main circuit connectionbox terminal
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
3RT2448-1AP00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2448-1AP00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2448-1AP00 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth152 mm
3RT2448-1AP00 — Specifications
ParameterValue
At AC10 ... 21 ms

Product details

Panel fit and DIN rail mounting

The 3RT2448-1AP00: Side-by-side mounting is permitted, which means multiple contactors can pack tightly on the rail without individual spacing blocks. Dimensions are 152 mm depth, 70 mm width, and 140 mm height — the width is the critical dimension for rail fill calculations when ganging contactors.

Auxiliary contact ratings and wiring

The contactor carries 1 normally open instantaneous auxiliary contact. Main power terminals accept stranded wire from 6 to 70 mm². At 600 V AC the rating drops to 0.1 A — this matters for control circuits running at higher voltages where the contact can only switch minimal current. The coil is AC type with a rated voltage of 230 V at 50 Hz. Arcing time spans 10 to 21 ms at AC, with a typical mechanical endurance of 10,000,000 operating cycles.

Lifecycle and sourcing for project milestones

Up to 2 attachable auxiliary switch blocks can be added to the contactor, extending its control circuit capacity without changing the base unit.

MPN
3RT2448-1AP00