Siemens

Siemens 3RT2518-2BF40

Power contactor, AC-3, 16 A, 7.5 kW / 400 V, 4-pole, 110 V DC, main contacts: 2 NO + 2 NC

MPN: 3RT2518-2BF40
Category: SIRIUS 3RT25 contactors, 4-pole, 2 NO + 2 NC

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What is the Siemens 3RT2518-2BF40?

power contactor, AC-3, 16 A, 7.5 kW / 400 V, 4-pole, 110 V DC, main contacts: 2 NO + 2 NC, spring-loaded terminal, size: S00

Specifications

General

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

General technical data

size of contactor	S00
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 W
power loss [W] for rated value of the current — without load current share typical	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	7.3 g / 5 ms, 4.7 g / 10 ms
shock resistance with sine pulse — at DC	11,4 g / 5 ms, 7,3g / 10 ms
mechanical service life (operating cycles) — of contactor typical	30 000 000
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	0.3 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	22 A
operational current — at AC-1 up to 690 V — at ambient temperature 60 °C rated value	20 A
operational current — at AC-2 at AC-3 at 400 V — per NO contact rated value	16 A
operational current — at AC-2 at AC-3 at 400 V — per NC contact rated value	9 A
minimum cross-section in main circuit at maximum AC-1 rated value	4 mm²
operational current — at 1 current path at DC-1 — at 24 V rated value	20 A
operational current — at 1 current path at DC-1 — at 110 V rated value	2.1 A
operational current — at 1 current path at DC-1 — at 220 V rated value	0.8 A
operational current — at 1 current path at DC-1 — at 440 V rated value	0.6 A
operational current — with 2 current paths in series at DC-1 — at 24 V rated value	20 A
operational current — with 2 current paths in series at DC-1 — at 110 V rated value	12 A
operational current — with 2 current paths in series at DC-1 — at 220 V rated value	1.6 A
operational current — with 2 current paths in series at DC-1 — at 440 V rated value	0.8 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	0.075 A
operational current — at 1 current path at DC-3 at DC-5 — at 110 V per NO contact rated value	0.15 A
operational current — at 1 current path at DC-3 at DC-5 — at 220 V per NC contact rated value	0.375 A
operational current — at 1 current path at DC-3 at DC-5 — at 220 V per NO contact rated value	0.75 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 24 V per NC contact rated value	20 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 24 V per NO contact rated value	20 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 110 V per NC contact rated value	0.175 A
operational current — with 2 current paths in series at DC-3 at DC-5 — at 110 V per NO contact rated value	0.35 A
operating power at AC-2 at AC-3 — at 230 V per NC contact rated value	2.2 kW
operating power at AC-2 at AC-3 — at 230 V per NO contact rated value	4 kW
operating power at AC-2 at AC-3 — at 400 V per NC contact rated value	4 kW
operating power at AC-2 at AC-3 — at 400 V per NO contact rated value	7.5 kW
short-time withstand current in cold operating state up to 40 °C — limited to 1 s switching at zero current maximum	165 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	165 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	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 30 s switching at zero current maximum	92 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	74 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 W
power loss [W] at AC-3e at 400 V for rated value of the operational current per conductor	1 W
no-load switching frequency — at AC	10 000 1/h
no-load switching frequency — at DC	10 000 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	110 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	4 W
holding power of magnet coil at DC	4 W
closing delay — at DC	30 ... 100 ms
opening delay — at DC	7 ... 13 ms
arcing time	10 ... 15 ms

Auxiliary circuit

number of NC contacts for auxiliary contacts instantaneous contact	0
number of NO contacts for auxiliary contacts instantaneous contact	0
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 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 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	2 hp
yielded mechanical performance [hp] — for 3-phase AC motor at 460/480 V rated value	5 hp
contact rating of auxiliary contacts according to UL	A600 / Q600

Short-circuit protection

design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 1 required	gG: 35 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: 20 A (690 V, 100 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	70 mm
width	45 mm
depth	73 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	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
type of connectable conductor cross-sections — for main contacts — solid	2x (0.5 ... 4 mm²)
type of connectable conductor cross-sections — for main contacts — solid or stranded	2x (0,5 ... 4 mm²)
type of connectable conductor cross-sections — for main contacts — finely stranded with core end processing	2x (0.5 ... 2.5 mm²)
type of connectable conductor cross-sections — for main contacts — finely stranded without core end processing	2x (0.5 ... 2.5 mm²)
type of connectable conductor cross-sections — for AWG cables for main contacts	2x (20 ... 12)
type of connectable conductor cross-sections — for auxiliary contacts — solid	2x (0.5 ... 4 mm²)
type of connectable conductor cross-sections — for auxiliary contacts — solid or stranded	2x (0,5 ... 4 mm²)
type of connectable conductor cross-sections — for auxiliary contacts — finely stranded with core end processing	2x (0.5 ... 2.5 mm²)
type of connectable conductor cross-sections — for auxiliary contacts — finely stranded without core end processing	2x (0.5 ... 2.5 mm²)
type of connectable conductor cross-sections — for AWG cables for auxiliary contacts	2x (20 ... 12)
AWG number as coded connectable conductor cross section for main contacts	20 ... 12
AWG number as coded connectable conductor cross section for auxiliary contacts	20 ... 12

Safety related data

product function — mirror contact according to IEC 60947-4-1	Yes; with 3RH29
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	1.42 kg
global warming potential [CO2 eq] / during operation	152 kg
global warming potential [CO2 eq] / after end of life	-0.305 kg
global warming potential [CO2 eq] / total	153 kg

Downloads & documentation

Official documents from Siemens, downloaded directly from the manufacturer.

Data sheets & manuals

Product data sheet 3RT2518-2BF40PDF

3RT2518-2BF40: frequently asked questions

When can 3RT2518-2BF40 be shipped?

3RT2518-2BF40 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 3RT2518-2BF40 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 3RT2518-2BF40 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 3RT2518-2BF40, subject to availability and destination.