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Siemens 3RH1262-2BB40 — Contactors

Siemens 3RH1262-2BB40 SIRIUS Auxiliary Contactor, 24 VDC, 6

MPN3RH1262-2BB40

Siemens SIRIUS 3RH1262-2BB40 auxiliary contactor, 24 VDC coil, 6 instantaneous NO contacts, S00 frame size, IP20 front, screw and snap-on mounting.

$38.10Ref. 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

3RH1262-2BB40 — Identification
ParameterValue
Contactor frame sizeS00
3RH1262-2BB40 — 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 @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1262-2BB40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RH1262-2BB40 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1262-2BB40 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting
3RH1262-2BB40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
3RH1262-2BB40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1262-2BB40 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth114 mm

Product details

It's built on the S00 frame size, the smallest in the SIRIUS family, which keeps the panel footprint tight at 45 mm wide. That steady draw matters when you're sharing a power supply across a row of contactors in a panel. That means you're not fighting panel layout constraints — it'll work in tight enclosures or angled subpanels.

Each of the six NO contacts is rated 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. These are thermal continuous ratings (AC-1 / resistive load class) — so they tell you the maximum current the contacts can carry without overheating when switching resistive loads like heaters or signal lamps. For motor or inductive loads, you'd derate per the AC-3 curve, but the 10 A at 24 V gives you headroom for pilot-duty circuits.

Wiring and panel integration

Terminals accept solid conductors from 0.25 to 2.5 mm² — that covers standard control wiring from 24 AWG up to 14 AWG. The screw-clamp terminals are reliable for panel builders who prefer a positive mechanical connection over push-in terminations.

Frequently asked questions

What are the key ratings for this auxiliary contactor?

It has a 24 VDC coil drawing 3.2 W, six NO contacts rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. Surge voltage resistance is 6 kV, and mechanical life is 10 million operations typical.

What wire sizes does it accept?

The screw terminals accept solid conductors from 0.25 mm² to 2.5 mm², covering standard control wiring from roughly 24 AWG to 14 AWG.

Does 3RH1262-2BB40 drop into a panel designed for a 3RT1015-1BB42?

Both are S00 frame size contactors from the Siemens SIRIUS family, so the physical footprint (45 mm width, same DIN-rail mounting) and terminal layout are compatible. The 3RH1262-2BB40 is an auxiliary contactor with six NO contacts, while the 3RT1015-1BB42 is a power contactor — they serve different circuit functions but share the same mechanical platform.

MPN
3RH1262-2BB40