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Siemens 3RT2526-1BB40

Power contactor, AC-3, 25 A, 11 kW / 400 V, 4-pole, 24 V DC, main contacts: 2 NO + 2 NC

MPN: 3RT2526-1BB40
Category: SIRIUS 3RT25 contactors, 4-pole, 2 NO + 2 NC

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What is the Siemens 3RT2526-1BB40?

power contactor, AC-3, 25 A, 11 kW / 400 V, 4-pole, 24 V DC, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S0

Specifications

General

product brand name	SIRIUS
product designation	contactor
product type designation	3RT25

General technical data

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 per pole	1.9 W
power loss [W] for rated value of the current — without load current share typical	5.9 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
Net Weight	0.634 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	2
number of NC contacts for main contacts	2
operational current — at AC-1 up to 690 V — at ambient temperature 40 °C rated value	40 A
operational current — at AC-1 up to 690 V — at ambient temperature 60 °C rated value	35 A
operational current — at AC-2 at AC-3 at 400 V — per NO contact rated value	25 A
operational current — at AC-2 at AC-3 at 400 V — per NC contact rated value	20 A
minimum cross-section in main circuit at maximum AC-1 rated value	10 mm²
operational current — at 1 current path at DC-1 — at 24 V rated value	35 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	35 A
operational current — with 2 current paths in series at DC-1 — at 110 V rated value	35 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 — at 1 current path at DC-3 at DC-5 — at 24 V per NC contact rated value	20 A
operational current — at 1 current path at DC-3 at DC-5 — at 24 V per NO contact rated value	20 A
operational current — at 1 current path at DC-3 at DC-5 — at 110 V per NC contact rated value	1.25 A
operational current — at 1 current path at DC-3 at DC-5 — at 110 V per NO contact rated value	2.5 A
operational current — at 1 current path at DC-3 at DC-5 — at 220 V per NC contact rated value	0.5 A
operational current — at 1 current path at DC-3 at DC-5 — at 220 V per NO contact rated value	1 A
operational current — at 1 current path at DC-3 at DC-5 — at 440 V per NC contact rated value	0.045 A
operational current — at 1 current path at DC-3 at DC-5 — at 440 V per NO contact rated value	0.09 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 24 V per NC contact rated value	35 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 24 V per NO contact rated value	35 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 110 V per NC contact rated value	7.5 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 110 V per NO contact rated value	15 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 220 V per NC contact rated value	1.5 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 220 V per NO contact rated value	3 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 440 V per NC contact rated value	0.135 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 440 V per NO contact rated value	0.27 A
operating power at AC-2 at AC-3 — at 230 V per NC contact rated value	5.5 kW
operating power at AC-2 at AC-3 — at 230 V per NO contact rated value	5.5 kW
operating power at AC-2 at AC-3 — at 400 V per NC contact rated value	7.5 kW
operating power at AC-2 at AC-3 — at 400 V per NO contact rated value	11 kW
short-time withstand current in cold operating state up to 40 °C — limited to 1 s switching at zero current maximum	200 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	200 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	200 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	128 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	106 A; Use minimum cross-section acc. to AC-1 rated value
power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor	1.9 W
power loss [W] at AC-3e at 400 V for rated value of the operational current per conductor	1.9 W
no-load switching frequency — at AC	5 000 1/h
no-load switching frequency — at DC	1 500 1/h
operating frequency — at AC-1 maximum	1 000 1/h

Control circuit/ Control

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	0.8
operating range factor control supply voltage rated value of magnet coil at DC — full-scale value	1.1
closing power of magnet coil at DC	5.9 W
holding power of magnet coil at DC	5.9 W
closing delay — at DC	50 ... 170 ms
opening delay — at DC	15 ... 18 ms
arcing time	10 ms

Auxiliary circuit

number of NC contacts for auxiliary contacts instantaneous contact	1
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	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
contact reliability of auxiliary contacts	1 faulty switching per 100 million (17 V, 1 mA)

UL/CSA ratings

yielded mechanical performance [hp] — for single-phase AC motor at 230 V rated value	3 hp
yielded mechanical performance [hp] — for 3-phase AC motor at 460/480 V rated value	15 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
design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 1 required	gG: 63 A (690 V, 100 kA)
design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 2 required	gG: 35 A (690 V, 50 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 50022
height	85 mm
width	61 mm
depth	107 mm
required spacing — with side-by-side mounting — forwards	0 mm
required spacing — with side-by-side mounting — backwards	0 mm
required spacing — with side-by-side mounting — upwards	0 mm
required spacing — with side-by-side mounting — downwards	0 mm
required spacing — with side-by-side mounting — at the side	0 mm
required spacing — for grounded parts — forwards	0 mm
required spacing — for grounded parts — backwards	0 mm
required spacing — for grounded parts — upwards	0 mm
required spacing — for grounded parts — at the side	6 mm
required spacing — for grounded parts — downwards	0 mm
required spacing — for live parts — forwards	0 mm
required spacing — for live parts — backwards	0 mm
required spacing — for live parts — upwards	0 mm
required spacing — for live parts — downwards	0 mm
required spacing — for live parts — at the side	6 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 — solid	2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)
type of connectable conductor cross-sections — for main contacts — solid or stranded	2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)
type of connectable conductor cross-sections — for main contacts — finely stranded with core end processing	2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²
type of connectable conductor cross-sections — for AWG cables for main contacts	2x (16 ... 12), 2x (14 ... 8)
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 as coded connectable conductor cross section for main contacts	16 ... 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
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

Approvals Certificates

global warming potential [CO2 eq] / during manufacturing	2.65 kg
global warming potential [CO2 eq] / during operation	219 kg
global warming potential [CO2 eq] / after end of life	-0.639 kg
global warming potential [CO2 eq] / total	221 kg

Downloads & documentation

Official documents from Siemens, downloaded directly from the manufacturer.

Data sheets & manuals

Product data sheet 3RT2526-1BB40PDF

3RT2526-1BB40: frequently asked questions

When can 3RT2526-1BB40 be shipped?

3RT2526-1BB40 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

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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?

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