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Siemens

Siemens 3RT2344-1NB30

Contactor AC-1, 110 A, 400 V / 40 °C, 4-pole, 20-33 V AC/DC, 50/60 Hz, with integrated varistor

MPN: 3RT2344-1NB30
Category: SIRIUS 3RT.3 contactors, 4-pole, up to 525 A

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What is the Siemens 3RT2344-1NB30?

contactor AC-1, 110 A, 400 V / 40 °C, 4-pole, 20-33 V AC/DC, 50/60 Hz, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S3

Specifications

General

product brand name	SIRIUS
product designation	Contactor
product type designation	3RT23

General technical data

size of contactor	S3
product extension — function module for communication	No
product extension — auxiliary switch	Yes
power loss [W] for rated value of the current — at AC in hot operating state	29.2 W
power loss [W] for rated value of the current — at AC in hot operating state per pole	7.3 W
power loss [W] for rated value of the current — without load current share typical	3.3 W
type of calculation of power loss current-dependent	quadratic
insulation voltage — of main circuit with degree of pollution 3 rated value	690 V
insulation voltage — of the auxiliary and control circuit with degree of pollution 3 rated value	690 V
surge voltage resistance — of main circuit rated value	8 kV
surge voltage resistance — of auxiliary circuit rated value	6 kV
shock resistance at rectangular impulse — at AC	6.7 g / 5 ms, 4.0 g / 10 ms
shock resistance with sine pulse — at AC	10.6 g / 5 ms, 6.3 g / 10 ms
mechanical service life (operating cycles) — of contactor typical	10 000 000
mechanical service life (operating cycles) — of the contactor with added auxiliary switch block typical	10 000 000
reference code according to IEC 81346-2	Q
Substance Prohibitance (day/month/year)	09/01/2017
SVHC substance name	Lead CAS-No. 7439-92-1 Lead monoxide (lead oxide) CAS-No. 1317-36-8 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-10-5 Melamine CAS-No. 108-78-1
Net Weight	2.06 kg

Ambient conditions

installation altitude at height above sea level maximum	2 000 m
ambient temperature — during operation	-25 ... +60 °C
ambient temperature — during storage	-55 ... +80 °C
relative humidity minimum	10 %
relative humidity at 55 °C according to IEC 60068-2-30 maximum	95 %

Main circuit

number of poles for main current circuit	4
number of NO contacts for main contacts	4
type of voltage for main current circuit	AC
operational current — at AC-1 at 400 V at ambient temperature 40 °C rated value	110 A
operational current — at AC-1 — up to 690 V at ambient temperature 40 °C rated value	110 A
operational current — at AC-1 — up to 690 V at ambient temperature 60 °C rated value	100 A
operational current — at AC-3 — at 400 V rated value	38 A
minimum cross-section in main circuit at maximum AC-1 rated value	35 mm²
operational current — at 1 current path at DC-1 — at 24 V rated value	70 A
operational current — at 1 current path at DC-1 — at 60 V rated value	23 A
operational current — at 1 current path at DC-1 — at 110 V rated value	4.5 A
operational current — at 1 current path at DC-1 — at 220 V rated value	1 A
operational current — at 1 current path at DC-1 — at 440 V rated value	0.4 A
operational current — with 2 current paths in series at DC-1 — at 24 V rated value	70 A
operational current — with 2 current paths in series at DC-1 — at 60 V rated value	70 A
operational current — with 2 current paths in series at DC-1 — at 110 V rated value	70 A
operational current — with 2 current paths in series at DC-1 — at 220 V rated value	5 A
operational current — with 2 current paths in series at DC-1 — at 440 V rated value	1 A
operational current — with 3 current paths in series at DC-1 — at 24 V rated value	70 A
operational current — with 3 current paths in series at DC-1 — at 60 V rated value	70 A
operational current — with 3 current paths in series at DC-1 — at 110 V rated value	70 A
operational current — with 3 current paths in series at DC-1 — at 220 V rated value	70 A
operational current — with 3 current paths in series at DC-1 — at 440 V rated value	2.9 A
operational current — at 1 current path at DC-3 at DC-5 — at 24 V rated value	20 A
operational current — at 1 current path at DC-3 at DC-5 — at 60 V rated value	6 A
operational current — at 1 current path at DC-3 at DC-5 — at 110 V rated value	2.5 A
operational current — at 1 current path at DC-3 at DC-5 — at 220 V rated value	1 A
operational current — at 1 current path at DC-3 at DC-5 — at 440 V rated value	0.15 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 24 V rated value	70 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 60 V rated value	70 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 110 V rated value	70 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 220 V rated value	7 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 440 V rated value	0.42 A
operational current — with 3 current paths in series at DC-3 at DC-5 — at 24 V rated value	70 A
operational current — with 3 current paths in series at DC-3 at DC-5 — at 60 V rated value	70 A
operational current — with 3 current paths in series at DC-3 at DC-5 — at 110 V rated value	70 A
operational current — with 3 current paths in series at DC-3 at DC-5 — at 220 V rated value	35 A
operational current — with 3 current paths in series at DC-3 at DC-5 — at 440 V rated value	0.8 A
no-load switching frequency — at AC	1 000 1/h
no-load switching frequency — at DC	1 000 1/h
operating frequency — at AC-1 maximum	650 1/h

Control circuit/ Control

type of voltage	AC/DC
type of voltage of the control supply voltage	AC/DC
control supply voltage at AC — at 50 Hz rated value	20 ... 33 V
control supply voltage at AC — at 60 Hz rated value	20 ... 33 V
control supply voltage at DC rated value	20 ... 33 V
operating range factor control supply voltage rated value of magnet coil at DC — initial value	0.8
operating range factor control supply voltage rated value of magnet coil at DC — full-scale value	1.1
operating range factor control supply voltage rated value of magnet coil at AC — at 50 Hz	0.8 ... 1.1
operating range factor control supply voltage rated value of magnet coil at AC — at 60 Hz	0.8 ... 1.1
design of the surge suppressor	with varistor
inrush current peak	6.5 A
duration of inrush current peak	50 µs
pickup current mean value	3.2 A
pickup current peak	6.5 A
duration of pickup current	150 ms
holding current mean value	75 mA
apparent pick-up power of magnet coil at AC — at 50 Hz	151 V·A
apparent pick-up power of magnet coil at AC — at 60 Hz	151 V·A
apparent holding power of magnet coil at AC — at 50 Hz	3.5 V·A
apparent holding power of magnet coil at AC — at 60 Hz	3.5 V·A
inductive power factor with the holding power of the coil — at 50 Hz	0.95
inductive power factor with the holding power of the coil — at 60 Hz	0.95
closing power of magnet coil at DC	76 W
holding power of magnet coil at DC	2.7 W
closing delay — at AC	50 ... 70 ms
closing delay — at DC	50 ... 70 ms
opening delay — at AC	38 ... 57 ms
opening delay — at DC	38 ... 57 ms
arcing time	10 ... 20 ms
control version of the switch operating mechanism	Standard A1 - A2

Auxiliary circuit

number of NC contacts for auxiliary contacts	1
number of NC contacts for auxiliary contacts — attachable	2
number of NC contacts for auxiliary contacts — instantaneous contact	1
number of NO contacts for auxiliary contacts	1
number of NO contacts for auxiliary contacts — attachable	2
number of NO contacts for auxiliary contacts — instantaneous contact	1
operational current at AC-12 maximum	10 A
operational current at AC-15 — at 230 V rated value	6 A
operational current at AC-15 — at 400 V rated value	3 A
operational current at AC-15 — at 500 V rated value	2 A
operational current at AC-15 — at 690 V rated value	1 A
operational current at DC-12 — at 24 V rated value	10 A
operational current at DC-12 — at 48 V rated value	6 A
operational current at DC-12 — at 60 V rated value	6 A
operational current at DC-12 — at 110 V rated value	3 A
operational current at DC-12 — at 125 V rated value	2 A
operational current at DC-12 — at 220 V rated value	1 A
operational current at DC-12 — at 600 V rated value	0.15 A
operational current at DC-13 — at 24 V rated value	10 A
operational current at DC-13 — at 48 V rated value	2 A
operational current at DC-13 — at 110 V rated value	1 A
operational current at DC-13 — at 125 V rated value	0.9 A
operational current at DC-13 — at 220 V rated value	0.3 A
operational current at DC-13 — at 600 V rated value	0.1 A
contact reliability of auxiliary contacts	1 faulty switching per 100 million (17 V, 1 mA)

UL/CSA ratings

contact rating of auxiliary contacts according to UL

A600 / P600

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 main circuit — with type of coordination 1 required	gG: 250 A (690 V, 100 kA)
design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 2 required	gR: 250 A (690 V, 100 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

mounting position	+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface
fastening method side-by-side mounting	Yes
fastening method	screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
height	140 mm
width	96 mm
depth	152 mm
required spacing — with side-by-side mounting — forwards	20 mm
required spacing — with side-by-side mounting — upwards	10 mm
required spacing — with side-by-side mounting — downwards	10 mm
required spacing — with side-by-side mounting — at the side	0 mm
required spacing — for grounded parts — forwards	20 mm
required spacing — for grounded parts — upwards	10 mm
required spacing — for grounded parts — at the side	10 mm
required spacing — for grounded parts — downwards	10 mm
required spacing — for live parts — forwards	20 mm
required spacing — for live parts — upwards	10 mm
required spacing — for live parts — downwards	10 mm
required spacing — for live parts — at the side	10 mm

Connections/ Terminals

type of electrical connection — for main current circuit	screw-type terminals
type of electrical connection — for auxiliary and control circuit	screw-type terminals
type of electrical connection — at contactor for auxiliary contacts	Screw-type terminals
type of electrical connection — of magnet coil	screw terminal
type of connectable conductor cross-sections — for main contacts — stranded	2x (6 ... 16 mm²), 2x (10 ... 50 mm²), 1x (10 ... 70 mm²)
type of connectable conductor cross-sections — for main contacts — solid or stranded	2x (2.5 ... 16 mm²), 2x (6 ... 16 mm²), 2x (10 ... 50 mm²), 1x (10 ... 70 mm²)
type of connectable conductor cross-sections — for main contacts — finely stranded with core end processing	2x (2.5 ... 35 mm²), 1x (2.5 ... 50 mm²)
type of connectable conductor cross-sections — for AWG cables for main contacts	2x (10 ... 1/0), 1x (10 ... 2/0)
connectable conductor cross-section for main contacts — solid	2.5 ... 16 mm²
connectable conductor cross-section for main contacts — solid or stranded	4 ... 70 mm²
connectable conductor cross-section for main contacts — stranded	6 ... 70 mm²
connectable conductor cross-section for main contacts — finely stranded with core end processing	2.5 ... 50 mm²
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	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 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 extended as coded connectable conductor cross section for main contacts	10 ... 2/0
AWG number as coded connectable conductor cross section for auxiliary contacts	20 ... 14

Safety related data

product function — mirror contact according to IEC 60947-4-1	Yes
product function — positively driven operation according to IEC 60947-5-1	No
protection class IP on the front according to IEC 60529	IP20
touch protection on the front according to IEC 60529	finger-safe, for vertical contact from the front

Communication/ Protocol

product function bus communication

Approvals Certificates

global warming potential [CO2 eq] / during manufacturing	11.3 kg
global warming potential [CO2 eq] / during operation	329 kg
global warming potential [CO2 eq] / after end of life	-1.8 kg
global warming potential [CO2 eq] / total	339 kg

Downloads & documentation

Official documents from Siemens, downloaded directly from the manufacturer.

Data sheets & manuals

Product data sheet 3RT2344-1NB30PDF

3RT2344-1NB30: frequently asked questions

When can 3RT2344-1NB30 be shipped?

3RT2344-1NB30 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 3RT2344-1NB30 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 3RT2344-1NB30 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 3RT2344-1NB30, subject to availability and destination.