Register to unlock your exclusive B2B prices and start shopping. Sign up now!

Siemens - Page 130

Reversing contactor assembly, AC-3, 37 kW/400 V, 220 V AC 50 Hz/240 V AC 60 Hz, 3-pole, S2
In stock: No
Siemens
Reversing contactor assembly, AC-3, 37 kW/400 V, 220 V AC 50 Hz/240 V AC 60 Hz, 3-pole, S2
296,81 €
This price is valid until 31.12.25
EAN: 0804766233449
MPN: 3RA2338-8XB30-1AP6
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Reversing contactor assembly, AC-3, 30 kW/400 V, 220 V AC 50 Hz/240 V AC 60 Hz, 3-pole, S2
In stock: No
Siemens
Reversing contactor assembly, AC-3, 30 kW/400 V, 220 V AC 50 Hz/240 V AC 60 Hz, 3-pole, S2
269,99 €
This price is valid until 31.12.25
EAN: 0804766233425
MPN: 3RA2337-8XB30-1AP6
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Power management software SENTRON powermanager, Client option pack (5) license
In stock: No Discontinued
Siemens
Power management software SENTRON powermanager, Client option pack (5) license
2 010,07 €
This price is valid until 24.12.25
EAN: 4019169240178
MPN: 3ZS2710-3CC00-0YD0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Power management software SENTRON powermanager V3.x Device Pack (50)
In stock: No Discontinued
Siemens
Power management software SENTRON powermanager V3.x Device Pack (50)
2 232,74 €
This price is valid until 24.12.25
EAN: 4019169240031
MPN: 3ZS2712-0CC30-0YD0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Power management software SENTRON powermanager V3.x Device Pack (100)
In stock: No Discontinued
Siemens
Power management software SENTRON powermanager V3.x Device Pack (100)
4 026,16 €
This price is valid until 24.12.25
EAN: 4019169240130
MPN: 3ZS2713-0CC30-0YD0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Repair varnish RAL 7032 Spray can 400ML
In stock: No
Siemens
Repair varnish RAL 7032 Spray can 400ML
128,53 €
This price is valid until 31.12.25
EAN: 4025515213802
MPN: 8MF9030
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Siemens
In stock: No
Siemens
ALPHA-ZS, quick-assembly kit H=900 mm, W=250 mm reserve section, 3 distribution rows
151,97 €
This price is valid until 31.12.25
EAN: 4001869287348
MPN: 8GS2078-0
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
ALPHA 160, wall-mounted cabinet, flush-mounting, IP31, protection class 2, H: 950 mm, W: 300 mm
In stock: No
Siemens
ALPHA 160, wall-mounted cabinet, flush-mounting, IP31, protection class 2, H: 950 mm, W: 300 mm
182,14 €
This price is valid until 31.12.25
EAN: 4001869257426
MPN: 8GK1031-4KK11
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Siemens
In stock: No
Siemens
ALPHA-ZS, quick-assembly kit H=1200 mm, W=250 mm 2 meters
477,69 €
This price is valid until 31.12.25
EAN: 4001869282503
MPN: 8GS2010-7
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
ALPHA-ZS, transparent cover for NH00, sealable
In stock: No
Siemens
ALPHA-ZS, transparent cover for NH00, sealable
25,59 €
This price is valid until 31.12.25
EAN: 4001869296739
MPN: 8GS4002-8
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Internal current sensors without energy transducer for size 3, set of 3 units
In stock: No
Siemens
Internal current sensors without energy transducer for size 3, set of 3 units
312,57 €
This price is valid until 31.12.25
EAN: 4001869581019
MPN: 3WA9111-0AA44
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
ALPHA-ZS, tariff switching device retrofit kit with fuse DII with cover for UAR
In stock: No
Siemens
ALPHA-ZS, tariff switching device retrofit kit with fuse DII with cover for UAR
69,84 €
This price is valid until 31.12.25
EAN: 4001869332178
MPN: 8GS4026-5
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
ALPHA-ZS, tariff switching device retrofit kit with miniature circuit breaker B10A
In stock: No
Siemens
ALPHA-ZS, tariff switching device retrofit kit with miniature circuit breaker B10A
159,23 €
This price is valid until 31.12.25
EAN: 4001869332116
MPN: 8GS4026-2
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Siemens
In stock: No
Siemens
ALPHA-ZS, quick-assembly kit H=1350 mm, W=250 mm 2 meters
517,91 €
This price is valid until 31.12.25
EAN: 4001869282480
MPN: 8GS2010-5
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Circuit breaker 3VA5 UL frame 400 breaking capacity class H 65 kA @ 480 V 3-pole
In stock: No
Siemens
Circuit breaker 3VA5 UL frame 400 breaking capacity class H 65 kA @ 480 V 3-pole
730,84 €
This price is valid until 31.12.25
EAN: 4047624205592
MPN: 3VA5340-6EC31-2AA0
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
SITRANS TH320 Temperature transmitter for installation in connection head type B (DIN 43729), with one
In stock: No
Siemens
SITRANS TH320 Temperature transmitter for installation in connection head type B (DIN 43729), with one
557,70 €
This price is valid until 24.12.25
EAN: 4047623606215
MPN: 7NG0310-0CA00-0AA0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Circuit breaker 3VA5 UL frame 250 breaking capacity class M 35 kA @ 480 V 4-pole
In stock: No
Siemens
Circuit breaker 3VA5 UL frame 250 breaking capacity class M 35 kA @ 480 V 4-pole
567,76 €
This price is valid until 31.12.25
EAN: 4047624206681
MPN: 3VA5215-5EF41-2AA0
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
ALPHA-ZS, quick-assembly kit H=900 mm B1 1 tariff switching device, unequipped
In stock: No
Siemens
ALPHA-ZS, quick-assembly kit H=900 mm B1 1 tariff switching device, unequipped
225,16 €
This price is valid until 31.12.25
EAN: 4001869376080
MPN: 8GS6001-7
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Circuit breaker 3VA5 UL frame 250 breaking capacity class H 65 kA @ 480 V 4-pole
In stock: No
Siemens
Circuit breaker 3VA5 UL frame 250 breaking capacity class H 65 kA @ 480 V 4-pole
522,46 €
This price is valid until 31.12.25
EAN: 4047624206759
MPN: 3VA5212-6GD41-2AA0
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
ALPHA-ZS, connecting kit for control cable terminal 7-pole
In stock: No
Siemens
ALPHA-ZS, connecting kit for control cable terminal 7-pole
36,93 €
This price is valid until 31.12.25
EAN: 4001869296609
MPN: 8GS4001-4
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
SIVACON S4, Module door, 3VA27 (1600A), 3/4-pole, Withdrawable, H: 550mm W: 400mm
In stock: No
Siemens
SIVACON S4, Module door, 3VA27 (1600A), 3/4-pole, Withdrawable, H: 550mm W: 400mm
92,41 €
This price is valid until 31.12.35
EAN: 4047624342648
MPN: 8PQ2055-4BA17
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Siemens
In stock: No
Siemens
ALPHA-ZS, quick-assembly kit H=900 mm, W=250 mm 1 meter
249,18 €
This price is valid until 31.12.25
EAN: 4001869282824
MPN: 8GS2015-2
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
UP 258D12 - KNX Presence Detector with brightness sensor UP 258D12
In stock: No
Siemens
UP 258D12 - KNX Presence Detector with brightness sensor UP 258D12
91,81 €
This price is valid until 30.09.25
EAN: 7612914097705
MPN: UP 258D12
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
SIMATIC PCS 7, software upgrade Advanced Engineering System from V7.1 6ES7658-1GX08-2YE5
In stock: No Discontinued
Siemens
SIMATIC PCS 7, software upgrade Advanced Engineering System from V7.1 6ES7658-1GX08-2YE5
3 316,08 €
This price is valid until 24.12.25
EAN: 0887621881030
MPN: 6ES7658-1GX08-2YE5
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
EPL Royalty for SIMATIC WinCC Professional max. Power Tags, only valid 6AV2103-0XA00-0AQ0
In stock: No
Siemens
EPL Royalty for SIMATIC WinCC Professional max. Power Tags, only valid 6AV2103-0XA00-0AQ0
8 092,99 €
This price is valid until 24.12.25
EAN: 0887621820961
MPN: 6AV2103-0XA00-0AQ0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
MV1 - Mounting bracket BPZ:3950450001
In stock: No
Siemens
MV1 - Mounting bracket BPZ:3950450001
91,98 €
This price is valid until 24.12.25
EAN: 4047625015282
MPN: BPZ:3950450001
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No
Siemens
EPL Maintenance for SIMATIC WinCC Professional 512 Power Tags, (EPL=Enterprise 6AV2103-0DA00-0GR0
674,30 €
This price is valid until 24.12.25
EAN: 4047622973226
MPN: 6AV2103-0DA00-0GR0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
SINUMERIK 828D/840D SL INTEGRATED SPINDLE MONITOR (S-MONITOR) SOFTWARE OPTION DELIVERY OF 6FC5800-0AP55-0YB0
In stock: No
Siemens
SINUMERIK 828D/840D SL INTEGRATED SPINDLE MONITOR (S-MONITOR) SOFTWARE OPTION DELIVERY OF 6FC5800-0AP55-0YB0
569,55 €
This price is valid until 24.12.25
EAN: 0804766190018
MPN: 6FC5800-0AP55-0YB0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
SINUMERIK 840Dsl/ONE/MC/828D SINUMERIK Integrate Create MyHMI /3GL software version 4.95 6FC5861-1YC46-5YA0
In stock: No
Siemens
SINUMERIK 840Dsl/ONE/MC/828D SINUMERIK Integrate Create MyHMI /3GL software version 4.95 6FC5861-1YC46-5YA0
3 801,75 €
This price is valid until 24.12.25
EAN: 0195125273306
MPN: 6FC5861-1YC46-5YA0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
**spare part** MICROMASTER 440 without filter 500-600 V 3AC +10/-10% 6SE6440-2UE25-5CA1
In stock: No Discontinued
Siemens
**spare part** MICROMASTER 440 without filter 500-600 V 3AC +10/-10% 6SE6440-2UE25-5CA1
4 747,50 €
This price is valid until 24.12.25
EAN: 4019169450683
MPN: 6SE6440-2UE25-5CA1
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
SIMATIC WinCC Professional 4096 PowerTags V19 UCL (TIA Portal) upgrade V11..V18 6AV2103-3HA00-0UE0
In stock: No
Siemens
SIMATIC WinCC Professional 4096 PowerTags V19 UCL (TIA Portal) upgrade V11..V18 6AV2103-3HA00-0UE0
1 618,90 €
This price is valid until 24.12.25
EAN: 0804766327773
MPN: 6AV2103-3HA00-0UE0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
Switch disconnector with fuses In-line design, pluggable NH3 630 A,…3NJ6233-1AA00-1FK1
1 787,97 €
This price is valid until 24.12.25
EAN: 4011209892965
MPN: 3NJ6233-1AA00-1FK1
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
SIMOTION SCOUT STAND-ALONE SOFTWARE UPDATE SERVICE UNLOCK COPY LICENSE (UCL),…6AU1810-0CA00-0UL0
In stock: No
Siemens
SIMOTION SCOUT STAND-ALONE SOFTWARE UPDATE SERVICE UNLOCK COPY LICENSE (UCL),…6AU1810-0CA00-0UL0
413,45 €
This price is valid until 24.12.25
EAN: 0804766503856
MPN: 6AU1810-0CA00-0UL0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
SIMATIC WinCC RT Professional, 262144 PowerTags V14 SP1, upgrade V13…6AV2105-3TT04-0AK0
In stock: No Discontinued
Siemens
SIMATIC WinCC RT Professional, 262144 PowerTags V14 SP1, upgrade V13…6AV2105-3TT04-0AK0
13 992,45 €
This price is valid until 24.12.25
EAN: 4047622462560
MPN: 6AV2105-3TT04-0AK0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
***spare part*** MICROMASTER 4 output LC filter 380-480 V 3AC…6SE6400-3TD15-0FD0
In stock: No Discontinued
Siemens
***spare part*** MICROMASTER 4 output LC filter 380-480 V 3AC…6SE6400-3TD15-0FD0
7 779,49 €
This price is valid until 24.12.25
EAN: 4019169453066
MPN: 6SE6400-3TD15-0FD0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
SIMATIC PCS7 CPU410E Single AS bundle as order option preassembled…6ES7654-6EK03-7AF0
In stock: No
Siemens
SIMATIC PCS7 CPU410E Single AS bundle as order option preassembled…6ES7654-6EK03-7AF0
11 363,11 €
This price is valid until 24.12.25
EAN: 0804766789632
MPN: 6ES7654-6EK03-7AF0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
**spare part** MICROMASTER 440 built-in class A filter 380-480 V...6SE6440-2AD34-5FA1
21 303,76 €
This price is valid until 24.12.25
EAN: 4019169450454
MPN: 6SE6440-2AD34-5FA1
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
***spare part*** MICROMASTER 4 braking resistor 200-240 V 6.8R 24000W...6SE6400-4BC21-2EA0
1 416,27 €
This price is valid until 24.12.25
EAN: 4019169447836
MPN: 6SE6400-4BC21-2EA0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
Switch disconnector with fuses In-line design, pluggable NH1 250 A,...3NJ6213-1AA00-1FG4
1 260,63 €
This price is valid until 24.12.25
EAN: 4011209892903
MPN: 3NJ6213-1AA00-1FG4
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
****spare part**** MICROMASTER 440 without filter 500-600V3AC+10/-10% 47-63Hz constant torque...6SE6440-2UE33-7EA1
18 790,41 €
This price is valid until 24.12.25
EAN: 4019169450751
MPN: 6SE6440-2UE33-7EA1
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
**spare part** MICROMASTER 430 without filter 380-480 V 3 AC...6SE6430-2UD33-7EA0
13 085,43 €
This price is valid until 24.12.25
EAN: 4019169449687
MPN: 6SE6430-2UD33-7EA0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Service Protect 1 year covers maintenance of your SIMOTICS motor...9MC3110-4SE00-0AL2
In stock: No
Siemens
Service Protect 1 year covers maintenance of your SIMOTICS motor...9MC3110-4SE00-0AL2
36,27 €
This price is valid until 31.12.35
EAN: 0195125460485
MPN: 9MC3110-4SE00-0AL2
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Siemens
In stock: No
Siemens
training package compact CPU 1512C-1 PN consisting of: S7-1500 CPU...6ES7512-1CK00-4AB7
2 041,37 €
This price is valid until 24.12.25
EAN: 0804766213144
MPN: 6ES7512-1CK00-4AB7
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
**spare part** MICROMASTER 430 without filter 380-480 V 3 AC...6SE6430-2UD35-5FA0
17 394,14 €
This price is valid until 24.12.25
EAN: 4019169449700
MPN: 6SE6430-2UD35-5FA0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
SIMATIC PCS 7, software, Upgrade Package OS Server from V6.X...6ES7658-2BX17-0YE0
8 240,62 €
This price is valid until 24.12.25
EAN: 4019169215855
MPN: 6ES7658-2BX17-0YE0
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
**spare part** MICROMASTER 420 without filter 200-240 V 45294 AC+10/-10%...6SE6420-2UC11-2AA1
698,18 €
This price is valid until 24.12.25
EAN: 4019169452724
MPN: 6SE6420-2UC11-2AA1
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
ALPHA 630 Universal grip angle and swing frame 2000mm...8GK9126-0KK02
103,69 €
This price is valid until 24.12.25
EAN: 4001869334332
MPN: 8GK9126-0KK02
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No Discontinued
Siemens
BRAUMAT/SISTAR CLASSIC, SOFTW. Upgrade from 4.XX mixed operation to V6.0...6FD7680-0RG06
3 620,97 €
This price is valid until 24.12.25
EAN: 4019169234269
MPN: 6FD7680-0RG06
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Contactor, AC-1, 350 A/400 V/40 °C, S10, 4-pole, 24-60 V AC, 20-60 V DC, 2
In stock: No
Siemens
Contactor, AC-1, 350 A/400 V/40 °C, S10, 4-pole, 24-60 V AC, 20-60 V DC, 2
866,14 €
This price is valid until 31.12.25
EAN: 4047621048789
MPN: 3RT1364-6AE36
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Changeover operating mechanism for contactors 3RT107, 3RT127, 3RT147, AC (50...60 Hz) / DC operation, 21
In stock: No
Siemens
Changeover operating mechanism for contactors 3RT107, 3RT127, 3RT147, AC (50...60 Hz) / DC operation, 21
218,53 €
This price is valid until 31.12.25
EAN: 4011209584396
MPN: 3RT1975-5NB32
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Magnet coil for contactors 7.5 kW 440 V AC, 60 Hz for motor contactors, S0
In stock: No
Siemens
Magnet coil for contactors 7.5 kW 440 V AC, 60 Hz for motor contactors, S0
10,18 €
This price is valid until 31.12.25
EAN: 4011209861312
MPN: 3RT2924-5AR11
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Load feeder, direct starter, S0, 18-25 A, 24 V DC, 150 kA
In stock: No
Siemens
Load feeder, direct starter, S0, 18-25 A, 24 V DC, 150 kA
221,12 €
This price is valid until 31.12.25
EAN: 4011209933910
MPN: 3RA2120-4DD27-0FB4
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Load feeder, reversing starter, S00, 0.7-1 A, 24 V DC, 150 kA
In stock: No
Siemens
Load feeder, reversing starter, S00, 0.7-1 A, 24 V DC, 150 kA
106,12 €
This price is valid until 31.12.25
EAN: 4011209795570
MPN: 3RA2210-0JE15-2BB4
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Load feeder, reversing starter, S00, 2.2-3.2 A, 24 V DC, 150 kA
In stock: No
Siemens
Load feeder, reversing starter, S00, 2.2-3.2 A, 24 V DC, 150 kA
148,83 €
This price is valid until 31.12.25
EAN: 4011209937574
MPN: 3RA2210-1DS15-2BB4
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Load feeder, reversing starter, S00, 7-10 A, 230 V AC, 50/60 Hz, 150 kA
In stock: No
Siemens
Load feeder, reversing starter, S00, 7-10 A, 230 V AC, 50/60 Hz, 150 kA
149,67 €
This price is valid until 31.12.25
EAN: 4011209797765
MPN: 3RA2210-1JH16-2AP0
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Overload relay 40- 50 A for motor protection, Class 10
In stock: No
Siemens
Overload relay 40- 50 A for motor protection, Class 10
79,73 €
This price is valid until 31.12.25
EAN: 4011209937048
MPN: 3RU2136-4HD1
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Overload relay 45...63 A Thermal For motor protection Size S3, Class 10 Stand-alone installation Main
In stock: No
Siemens
Overload relay 45...63 A Thermal For motor protection Size S3, Class 10 Stand-alone installation Main
79,73 €
This price is valid until 31.12.25
EAN: 4047621013053
MPN: 3RU2146-4JD1
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Overload relay 0.1-0.4 A motor protection S0, Class 5-30, contactor mounting
In stock: No
Siemens
Overload relay 0.1-0.4 A motor protection S0, Class 5-30, contactor mounting
107,81 €
This price is valid until 31.12.25
EAN: 4011209749580
MPN: 3RB3123-4RB0
Package: 1
Estimate delivery time at our warehouse (approx.): 1-4 weeks
Siemens
In stock: No
Siemens
Pushbutton, 22 mm, round, plastic, ...
10,33 €
This price is valid until 24.12.25
EAN: 4047621112848
MPN: 3SU1000-0AA40-0AA0-Z Y10
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks
Siemens
In stock: No
Siemens
Pushbutton, 22 mm, round, plastic, ...
10,33 €
This price is valid until 24.12.25
EAN: 4047621112855
MPN: 3SU1000-0AA40-0AA0-Z Y11
Package: 1
Estimate delivery time at our warehouse (approx.): 4-6 weeks