Siemens 3RT2026-2XB40-1LA2

Circuit Protection & Switching

MPN: 3RT2026-2XB40-1LA2
Category: Circuit Protection & Switching

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What is the Siemens 3RT2026-2XB40-1LA2?

Circuit Protection & Switching

Specifications

General technical data

Technical Product Detail Page	https://i.siemens.com/1P3RT2026-2XB40-1LA2
size of contactor	S0
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	4.8 W
power loss [W] for rated value of the current — at AC in hot operating state per pole	1.6 W
power loss [W] for rated value of the current — without load current share typical	1.4 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 auxiliary circuit with degree of pollution 3 rated value	690 V
surge voltage resistance — of main circuit rated value	6 kV
surge voltage resistance — of auxiliary circuit rated value	6 kV
maximum permissible voltage for protective separation between coil and main contacts according to EN 60947-1	400 V
shock resistance at rectangular impulse — at DC	10g / 5 ms, 7,5g / 10 ms
shock resistance with sine pulse — at DC	15 g / 5 ms, 10 g / 10 ms
mechanical service life (operating cycles) — of contactor typical	10 000 000
mechanical service life (operating cycles) — of the contactor with added electronically optimized auxiliary switch block typical	5 000 000
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)	10/01/2009
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	0.591 kg

Ambient conditions

installation altitude at height above sea level maximum	2 000 m
ambient temperature — during operation	-40 ... +70 °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	3
number of NO contacts for main contacts	3
operating voltage — at AC-3 rated value maximum	690 V
operating voltage — at AC-3e rated value maximum	690 V
operational current — at AC-1 at 400 V at ambient temperature 40 °C rated value	40 A
— up to 690 V at ambient temperature 40 °C rated value	40 A
— up to 690 V at ambient temperature 60 °C rated value	35 A
at AC-2 at 400 V rated value	25 A
— at 400 V rated value	25 A
— at 500 V rated value	18 A
— at 690 V rated value	13 A
— at 400 V rated value	25 A
— at 500 V rated value	18 A
— at 690 V rated value	13 A
at AC-4 at 400 V rated value	15.5 A
minimum cross-section in main circuit — at maximum AC-1 rated value	10 mm²
minimum cross-section in main circuit — at maximum Ith rated value	10 mm²
operational current for approx. 200000 operating cycles at AC-4 — at 400 V rated value	9 A
operational current for approx. 200000 operating cycles at AC-4 — at 690 V rated value	9 A
— at 24 V rated value	35 A
— at 110 V rated value	4.5 A
— at 220 V rated value	1 A
— at 440 V rated value	0.4 A
— at 600 V rated value	0.25 A
— at 24 V rated value	35 A
— at 110 V rated value	35 A
— at 220 V rated value	5 A
— at 440 V rated value	1 A
— at 600 V rated value	0.8 A
— at 24 V rated value	35 A
— at 110 V rated value	35 A
— at 220 V rated value	35 A
— at 440 V rated value	2.9 A
— at 600 V rated value	1.4 A
— at 24 V rated value	20 A
— at 110 V rated value	2.5 A
— at 220 V rated value	1 A
— at 440 V rated value	0.09 A
— at 600 V rated value	0.06 A
— at 24 V rated value	35 A
— at 110 V rated value	15 A
— at 220 V rated value	3 A
— at 440 V rated value	0.27 A
— at 600 V rated value	0.16 A
— at 24 V rated value	35 A
— at 110 V rated value	35 A
— at 220 V rated value	10 A
— at 440 V rated value	0.6 A
— at 600 V rated value	0.6 A
operating power — at AC-2 at 400 V rated value	11 kW
— at 230 V rated value	5.5 kW
— at 400 V rated value	11 kW
— at 500 V rated value	11 kW
— at 690 V rated value	11 kW
— at 230 V rated value	5.5 kW
— at 400 V rated value	11 kW
— at 500 V rated value	11 kW
— at 690 V rated value	11 kW
operating power for approx. 200000 operating cycles at AC-4 — at 400 V rated value	4.4 kW
operating power for approx. 200000 operating cycles at AC-4 — at 690 V rated value	7.7 kW
short-time withstand current in cold operating state up to 40 °C — limited to 1 s switching at zero current maximum	375 A; Use minimum cross-section acc. to AC-1 rated value
short-time withstand current in cold operating state up to 40 °C — limited to 5 s switching at zero current maximum	300 A; Use minimum cross-section acc. to AC-1 rated value
short-time withstand current in cold operating state up to 40 °C — limited to 10 s switching at zero current maximum	210 A; Use minimum cross-section acc. to AC-1 rated value
short-time withstand current in cold operating state up to 40 °C — limited to 30 s switching at zero current maximum	144 A; Use minimum cross-section acc. to AC-1 rated value
short-time withstand current in cold operating state up to 40 °C — limited to 60 s switching at zero current maximum	118 A; Use minimum cross-section acc. to AC-1 rated value
no-load switching frequency — at DC	1 500 1/h
operating frequency — at AC-1 maximum	750 1/h
operating frequency — at AC-2 maximum	750 1/h
operating frequency — at AC-3 maximum	750 1/h
— maximum	750 1/h
at AC-2 at AC-3e maximum	750 1/h
at AC-4 maximum	250 1/h

Ratings for railway applications

thermal current (Ith) up to 690 V — up to 40 °C according to IEC 60077 rated value	40 A
thermal current (Ith) up to 690 V — up to 70 °C according to IEC 60077 rated value	30 A

Control circuit/ Control

type of voltage	DC
type of voltage of the control supply voltage	DC
control supply voltage at DC rated value	24 V
operating range factor control supply voltage rated value of magnet coil at DC — initial value	0.7
operating range factor control supply voltage rated value of magnet coil at DC — full-scale value	1.25
design of the surge suppressor	with varistor
inrush current peak	3 A
duration of inrush current peak	30 µs
pickup current mean value	0.3 A
pickup current peak	0.52 A
duration of pickup current	180 ms
holding current mean value	45 mA
closing power of magnet coil at DC	6.7 W
holding power of magnet coil at DC	1.4 W
closing delay — at DC	50 ... 75 ms
opening delay — at DC	30 ... 50 ms
arcing time	10 ms
control version of the switch operating mechanism	Standard A1 - A2

Auxiliary circuit

number of NC contacts for auxiliary contacts	1
instantaneous contact	1
number of NO contacts for auxiliary contacts	1
instantaneous contact	1
operational current at AC-12 maximum	10 A
operational current at AC-15 — at 230 V rated value	10 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 60 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

UL/CSA ratings

full-load current (FLA) for 3-phase AC motor — at 480 V rated value	21 A
full-load current (FLA) for 3-phase AC motor — at 600 V rated value	22 A
— at 110/120 V rated value	2 hp
— at 230 V rated value	3 hp
— at 200/208 V rated value	5 hp
— at 220/230 V rated value	7.5 hp
— at 460/480 V rated value	15 hp
— at 575/600 V rated value	20 hp
contact rating of auxiliary contacts according to UL	A600 / Q600
UL File Number (CCN)	E31519 (NLDX, NLDX7)

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
— with type of coordination 1 required	gG: 100 A (690 V, 100 kA), aM: 50 A (690 V, 100 kA), BS88: 100 A (415 V, 80 kA)
— with type of coordination 2 required	gG: 35 A (690 V, 100 kA), aM: 20 A (690 V, 100 kA), BS88: 35 A (415 V, 80 kA)
for short-circuit protection of the auxiliary switch required	gG: 10 A (690 V, 1 kA)

Installation/ mounting/ dimensions

mounting position	standing, on horizontal 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	102 mm
width	45 mm
depth	107 mm
— forwards	10 mm
— upwards	10 mm
— downwards	10 mm
— at the side	0 mm
— forwards	10 mm
— upwards	10 mm
— at the side	6 mm
— downwards	10 mm
— forwards	10 mm
— upwards	10 mm
— downwards	10 mm
— at the side	6 mm

Connections/ Terminals

type of electrical connection — for main current circuit	spring-loaded terminals
type of electrical connection — for auxiliary and control circuit	spring-loaded terminals
type of electrical connection — at contactor for auxiliary contacts	Spring-type terminals
type of electrical connection — of magnet coil	Spring-loaded terminal
— solid	2x (1 ... 10 mm²)
— solid or stranded	2x (1 ... 10 mm²)
— finely stranded with core end processing	2x (1 ... 6 mm²)
— finely stranded without core end processing	2x (1 ... 6 mm²)
for AWG cables for main contacts	2x (18 ... 8)
— solid or stranded	2x (0.5 ... 2.5 mm²)
— finely stranded with core end processing	2x (0.5 ... 1.5 mm²)
— finely stranded without core end processing	2x (0.5 ... 2.5 mm²)
for AWG cables for auxiliary contacts	2x (20 ... 14)
AWG number as coded connectable conductor cross section for main contacts	18 ... 8
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
product function — suitable for safety function	Yes
suitability for use safety-related switching OFF	Yes
service life maximum	20 a
test wear-related service life necessary	Yes
proportion of dangerous failures — with low demand rate according to SN 31920	40 %
proportion of dangerous failures — with high demand rate according to SN 31920	73 %
B10 value with high demand rate according to SN 31920	1 000 000
failure rate [FIT] with low demand rate according to SN 31920	100 FIT
device type according to ISO 13849-1	3
overdimensioning according to ISO 13849-2 necessary	Yes
safety device type according to IEC 61508-2	Type A
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

Downloads & documentation

Official documents from Siemens, downloaded directly from the manufacturer.

Data sheets & manuals

Product data sheet 3RT2026-2XB40-1LA2PDF

3RT2026-2XB40-1LA2: frequently asked questions

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