Skip to main content
Siemens 3RH1244-1BB40 — Contactors

Siemens 3RH1244-1BB40 SIRIUS Aux Contactor, 24V DC, 10A

MPN3RH1244-1BB40

Siemens SIRIUS auxiliary contactor, order code 3RH1244-1BB40, size S00, 4 NO contacts, 24 V DC coil, rated 10 A at 24 V.

$40.00Ref. price · indicative, final on quote
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

3RH1244-1BB40 — Identification
ParameterValue
Contactor frame sizeS00
3RH1244-1BB40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 24 V10 A
Rated value @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1244-1BB40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1244-1BB40 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1244-1BB40 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RH1244-1BB40 — Connection & Mounting
ParameterValue
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2x (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
3RH1244-1BB40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
3RH1244-1BB40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1244-1BB40 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth111 mm

Product details

Mounting & terminal details

The 3RH1244-1BB40: Mounts via screw and snap-on onto DIN rail; panel footprint is 45 mm wide, 57.5 mm tall, 111 mm deep. Screw-type terminals accept conductors: solid 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or 2x 4 mm²; same for finely stranded with ferrule. IP20 finger protection on the front face.

Environment & endurance

Shock 10g/5 ms and 5g/10 ms. Mechanical life 10 000 000 cycles.

MPN
3RH1244-1BB40