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Siemens 3RH2911-1MA20

Auxiliary switch, on the front, 2 NO, 73/74, 83/84, current path: 1 NO, 1 NO, cable entry from below

MPN: 3RH2911-1MA20
Category: Instantaneous

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What is the Siemens 3RH2911-1MA20?

auxiliary switch, on the front, 2 NO, 73/74, 83/84, current path: 1 NO, 1 NO, cable entry from below, screw terminal, for contactors 3RT2 and contactor relays 3RH2

Specifications

General

product brand name	SIRIUS
product category	Auxiliary switch
product designation	auxiliary switch
design of the product	for snapping onto the front
product type designation	3RH29
suitability for use	for 3RT2.1, 3RT2.2, 3RT2.3, 3RT2.4, 3RH2

General technical data

insulation voltage with degree of pollution 3 at AC rated value	690 V
surge voltage resistance rated value	6 kV
protection class IP on the front	IP20
mechanical service life (operating cycles) typical	10 000 000
electrical endurance (operating cycles) at AC-15 at 230 V typical	200 000
Substance Prohibitance (day/month/year)	10/01/2009
Net Weight	50.99 g
number of NC contacts for auxiliary contacts — instantaneous contact	0
number of NC contacts for auxiliary contacts — lagging switching	0
number of NO contacts for auxiliary contacts — instantaneous contact	2
number of NO contacts for auxiliary contacts — leading contact	0
number of CO contacts of auxiliary contacts instantaneous contact	0
operational current at AC-15 at 690 V rated value	1 A
operational current of auxiliary contacts at AC-12 — at 24 V	10 A
operational current of auxiliary contacts at AC-12 — at 230 V	10 A
operational current of auxiliary contacts at AC-14 — at 125 V	6 A
operational current of auxiliary contacts at AC-14 — at 250 V	6 A
operational current of auxiliary contacts at AC-12 maximum	10 A
operational current of auxiliary contacts at AC-15 — at 24 V	6 A
operational current of auxiliary contacts at AC-15 — at 230 V	6 A
operational current of auxiliary contacts at AC-15 — at 400 V	3 A
operational current of auxiliary contacts at DC-12 — at 24 V	10 A
operational current of auxiliary contacts at DC-12 — at 110 V	3 A
operational current of auxiliary contacts at DC-12 — at 220 V	1 A
operational current with 2 current paths in series at DC-12 — at 24 V rated value	10 A
operational current with 2 current paths in series at DC-12 — at 60 V rated value	10 A
operational current with 2 current paths in series at DC-12 — at 110 V rated value	4 A
operational current with 2 current paths in series at DC-12 — at 220 V rated value	2 A
operational current with 2 current paths in series at DC-12 — at 440 V rated value	1.3 A
operational current with 2 current paths in series at DC-12 — at 600 V rated value	0.65 A
operational current with 3 current paths in series at DC-12 — at 24 V rated value	10 A
operational current with 3 current paths in series at DC-12 — at 60 V rated value	10 A
operational current with 3 current paths in series at DC-12 — at 110 V rated value	10 A
operational current with 3 current paths in series at DC-12 — at 220 V rated value	3.6 A
operational current with 3 current paths in series at DC-12 — at 440 V rated value	2.5 A
operational current with 3 current paths in series at DC-12 — at 600 V rated value	1.8 A
operational current with 2 current paths in series at DC-13 — at 24 V rated value	10 A
operational current with 2 current paths in series at DC-13 — at 60 V rated value	3.5 A
operational current with 2 current paths in series at DC-13 — at 110 V rated value	1.3 A
operational current with 2 current paths in series at DC-13 — at 220 V rated value	0.9 A
operational current with 2 current paths in series at DC-13 — at 440 V rated value	0.2 A
operational current with 2 current paths in series at DC-13 — at 600 V rated value	0.1 A
operational current with 3 current paths in series at DC-13 — at 24 V rated value	10 A
operational current with 3 current paths in series at DC-13 — at 60 V rated value	4.7 A
operational current with 3 current paths in series at DC-13 — at 110 V rated value	3 A
operational current with 3 current paths in series at DC-13 — at 220 V rated value	1.2 A
operational current with 3 current paths in series at DC-13 — at 440 V rated value	0.5 A
operational current with 3 current paths in series at DC-13 — at 600 V rated value	0.26 A
operational current of auxiliary contacts at DC-13 — at 24 V	6 A
operational current of auxiliary contacts at DC-13 — at 48 V	2 A
operational current of auxiliary contacts at DC-13 — at 60 V	2 A
operational current of auxiliary contacts at DC-13 — at 110 V	1 A
operational current of auxiliary contacts at DC-13 — at 125 V	0.9 A
operational current of auxiliary contacts at DC-13 — at 220 V	0.3 A
operational current of auxiliary contacts at DC-13 — at 250 V	0.3 A
design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V	C characteristic: 10 A; 0.4 kA
contact reliability of auxiliary contacts	1 faulty switching per 100 million (17 V, 1 mA)

Ambient conditions

ambient temperature — during operation	-25 ... +60 °C
ambient temperature — during storage	-55 ... +80 °C

Safety related data

product function — mirror contact according to IEC 60947-4-1	Yes; with 3RT2
product function — positively driven operation according to IEC 60947-5-1	Yes

Short-circuit protection

design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V	C characteristic: 10 A; 0.4 kA
design of the fuse link for short-circuit protection of the auxiliary switch required	gG: 10 A (690 V, 1 kA)

Installation/ mounting/ dimensions

fastening method	snap-on mounting
height	37.5 mm
width	36 mm
depth	43.7 mm

Connections/ Terminals

type of electrical connection for auxiliary and control circuit	screw-type terminals
connectable conductor cross-section for auxiliary contacts — solid or stranded	0.5 ... 2.5 mm²
connectable conductor cross-section for auxiliary contacts — finely stranded with core end processing	0.5 ... 2.5 mm²
type of connectable conductor cross-sections — for auxiliary contacts — solid or stranded	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
type of connectable conductor cross-sections — for auxiliary contacts — finely stranded with core end processing	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
type of connectable conductor cross-sections — for AWG cables for auxiliary contacts	2x (20 ... 16), 2x (18 ... 14)
AWG number as coded connectable conductor cross section for auxiliary contacts	20 ... 14

Approvals Certificates

global warming potential [CO2 eq] / during manufacturing	0.34 kg
global warming potential [CO2 eq] / during operation	0.562 kg
global warming potential [CO2 eq] / after end of life	0.0172 kg
global warming potential [CO2 eq] / total	0.92 kg

Downloads & documentation

Official documents from Siemens, downloaded directly from the manufacturer.

Data sheets & manuals

Product data sheet 3RH2911-1MA20PDF

3RH2911-1MA20: frequently asked questions

When can 3RH2911-1MA20 be shipped?

3RH2911-1MA20 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up 3RH2911-1MA20 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for 3RH2911-1MA20 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 3RH2911-1MA20, subject to availability and destination.