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Siemens 3RH2440-1AP00 — Contactors

Siemens 3RH2440-1AP00 SIRIUS Auxiliary Contactor, 4 NO, S00

MPN3RH2440-1AP00
Active

Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 3RH2440-1AP00, screw and snap-on mounting onto 35 mm DIN rail, 73 mm depth, 90 mm width.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RH2440-1AP00 — Identification
ParameterValue
Contactor frame sizeS00
3RH2440-1AP00 — 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 V10 A
Rated value @ 24 V10 A
Rated value @ 60 V4.7 A
Rated value @ 110 V3 A
Rated value @ 220 V1.2 A
3RH2440-1AP00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RH2440-1AP00 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH2440-1AP00 — Connection & Mounting
ParameterValue
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 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
3RH2440-1AP00 — Durability
ParameterValue
Durability (operating cycles, typ.)5 000 000
Durability with aux. switch block (cycles, typ.)5 000 000
3RH2440-1AP00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH2440-1AP00 — Mechanical
ParameterValue
Width90 mm
Height57.5 mm
Depth73 mm
3RH2440-1AP00 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

It mounts on a 35 mm DIN rail via screw or snap-on fastening, with a depth of 73 mm, width of 90 mm, and height of 57.5 mm — the standard S00 footprint that slides into any panel already laid out for this frame size.

Each NO contact is rated 10 A at 24 V AC (50/60 Hz) and also 10 A at 230 V AC — that's the resistive load curve the contact can handle continuously. At higher voltages the current drops: 3 A at 400 V, 1 A at 690 V, and for DC switching you get 10 A at 24 V, 4.7 A at 60 V, down to 0.26 A at 600 V. The arcing time sits between 10 and 15 ms, which is typical for a contactor of this class and tells you the contact gap clears the arc fast enough for most control circuits. Mechanical service life is 5 million operations typical — that's the number of times the armature can cycle before wear becomes a concern.

Mounting and wiring flexibility

Wire terminations accept 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm² solid or stranded.

Frequently asked questions

What is the depth of 3RH2440-1AP00?

The 3RH2440-1AP00 has a depth of 73 mm, width of 90 mm, and height of 57.5 mm.

Where can I buy 3RH2440-1AP00 and how is it quoted?

The 3RH2440-1AP00 is sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time.

Will 3RH2440-1AP00 drop into a panel specified for 3RH2422-1AB00?

Both are SIRIUS size S00 contactors with the same DIN-rail footprint, so the 3RH2440-1AP00 will physically fit in the same panel location. The difference is contact configuration — the 3RH2440-1AP00 carries 4 NO contacts; the 3RH2422-1AB00 has a different contact arrangement. Verify your control circuit's NO/NC requirements before substituting.

What compliance documentation does Siemens provide for 3RH2440-1AP00?

The 3RH2440-1AP00 has a RoHS compliance date of October 1, 2009, and as a SIRIUS series product it is documented with UL, CSA, and CE certifications through Siemens standard documentation.

MPN
3RH2440-1AP00