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Siemens 3RT1316-2BB40 — Contactors

Siemens 3RT1316-2BB40 SIRIUS Power Contactor, S00, 4NO, 24 V

MPN3RT1316-2BB40

Siemens SIRIUS power contactor, size S00, 3RT1316-2BB40, 4 NO main contacts, 24 V DC coil, spring-loaded terminals, screw and snap-on mounting for 35 mm DIN rail.

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Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT1316-2BB40 — Identification
ParameterValue
Contactor frame sizeS00
3RT1316-2BB40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 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
3RT1316-2BB40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1316-2BB40 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1316-2BB40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 35 A
Short-circuit coordination type 2, fusefuse gL/gG: 20 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1316-2BB40 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0,25 ... 2,5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1316-2BB40 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1316-2BB40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Installation altitude, max.2 000 m
3RT1316-2BB40 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth72 mm

Product details

Coil and control circuit specifics

The DC coil pulls a steady 3.3 W, both on closing and holding — no inrush spike to size a power supply around. Pick-up threshold is 0.85 x rated voltage (roughly 20.4 V), drop-out at 0.1 x rated (2.4 V). The auxiliary contact side switches 10 A at 24 V (AC-12), 6 A at 230 V, and 3 A at 400 V. If you're driving PLC outputs or small relays off the aux contacts, those numbers tell you the contact rating, not the coil draw.

Side-by-side mounting is allowed with no derating gap — the S00 frame dissipates well enough that you can pack them tight. IP20 on the front and terminals — finger-safe, but not washdown-rated.

Protection and coordination

That's the selectivity headroom you need for the panel SCCR calculation — the fuse clears the fault before the contactor welds shut.

Environmental compliance

RoHS compliance date is listed as July 1, 2006 — covers the original EU RoHS directive. REACH and other substance restrictions are handled under Siemens' standard SIRIUS declaration.

Frequently asked questions

What are the key ratings for this contactor?

Size S00 frame, 4 NO main contacts, 24 V DC coil drawing 3.3 W. Motor rating is 4 kW at 400 V in AC-2 duty. Aux contacts switch 10 A at 24 V (AC-12). Spring-loaded terminals accept 0.25 to 2.5 mm² wire. Mechanical endurance is 30 million operations.

What compliance documentation is available for this part?

RoHS compliance is documented with a substance prohibition date of July 1, 2006. The part carries an IEC 81346-2 reference code Q. Standard Siemens SIRIUS declarations cover REACH and other EU directives.

Will 3RT1316-2BB40 drop into a panel built for 3RT1015-1BB42?

Both are S00 frame contactors on a 45 mm DIN-rail footprint, so the mechanical fit is the same. The 3RT1316-2BB40 has 4 NO main contacts and a 24 V DC coil; the 3RT1015-1BB42 has a different contact configuration and coil voltage. Check the contact arrangement and coil supply before swapping — the rail position and wireway clearance are identical.

MPN
3RT1316-2BB40