BOM / RFQ

Siemens 3RH2131-1AK20 SIRIUS Auxiliary Contactor, S00

MPN3RH2131-1AK20

Active

Siemens SIRIUS 3RH2131-1AK20 auxiliary contactor, size S00, 3 instantaneous contacts, 10 A at 24 V / 230 V, 45 mm width, screw and snap-on 35 mm DIN rail mounting.

Add to RFQ

Siemens 3RH2131-1AK20 datasheet (PDF)

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

Specifications

3RH2131-1AK20 — Identification
Parameter	Value
Contactor frame size	S00

3RH2131-1AK20 — Ratings & Performance
Parameter	Value
Rated operational current, AC-12, max.	10 A
Rated value @ 400 V	3 A
Rated value @ 500 V	2 A
Rated value @ 690 V	1 A
Rated value @ 230 V	10 A
Rated value @ 24 V	10 A
Rated value @ 60 V	4.7 A
Rated value @ 110 V	3 A
Rated value @ 220 V	1.2 A

3RH2131-1AK20 — Control & Coil
Parameter	Value
Control supply voltage type	AC
Rated value @ 50 Hz	0.8 ... 1.1
Rated value @ 50 Hz	120 V

3RH2131-1AK20 — Contacts & Poles
Parameter	Value
Auxiliary contact reliability	1 faulty switching per 100 million (17 V, 1 mA)

3RH2131-1AK20 — Connection & Mounting
Parameter	Value
Conductor cross-section, solid or stranded	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
Conductor cross-section, finely stranded w/ ferrule	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting method	screw and snap-on mounting onto 35 mm DIN rail

3RH2131-1AK20 — Durability
Parameter	Value
Durability (operating cycles, typ.)	30 000 000
Durability with aux. switch block (cycles, typ.)	10 000 000

3RH2131-1AK20 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C
Storage temperature range	-55 ... +80 °C
Installation altitude, max.	2 000 m

3RH2131-1AK20 — Mechanical
Parameter	Value
Width	45 mm
Height	57.5 mm
Depth	73 mm

3RH2131-1AK20 — Specifications
Parameter	Value
At AC	4 ... 15 ms

Product details

The 3RH2131-1AK20: Rated for 30 million mechanical operations typical — this is the contactor's wear-out floor under no-load switching; actual electrical life depends on the switched current and voltage per the AC/DC duty curves.

Active production — sourcing posture for this SIRIUS contactor

Compliance documentation includes RoHS conformance with substance prohibition date 10/01/2009 and a minimum 10% relative humidity rating — no UL or CSA listing appears in the spec record, so verify site-specific approval requirements separately.