Instruction/ maintenance manual of the product AC-21 Siemens
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Siemens L V 10 · 2004 7/2 Introduction SENTRIC switch disconnector s SENTRIC LD main control and EMERGENCY-ST OP switches fr om 16 A to 125 A 7/4 General data 7/5 Front mounting 7/7 Mounting in distr.
Siemens L V 10 · 2004 7/2 Switch Disconnectors and Fuses Introduction 7 ■ Overview Ty p e 3LD20 3LD21 3LD22 3LD25 3LD27 3LD28 SENTRIC LD main control and EMERGENCY-STOP switches from 16 A to 125 A .
Siemens L V 10 · 2004 7/3 Switch Disconnectors and Fuses Introduction 7 Ty p e 3NP 3K SENTRIC Rated uninterrupted current I U at 35 °C ambient temperature A 160 .
Siemens L V 10 · 2004 7/4 SENTRIC Switch Disconnectors General data SENTRIC LD Main Control and EMERGENCY ST OP Switches from 16 A to 125 A 7 ■ T echnical specifications 1) With appropriate operating mechanisms accor ding to DIN VDE 0113 (see selection and ordering data).
Siemens L V 10 · 2004 7/5 SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY ST OP Switches from 16 A to 125 A Front mounting 7 ■ Area of application The SENTRIC 3LD2 switches are u.
Siemens L V 10 · 2004 7/6 SENTRIC Switch Disconnectors Front mounting SENTRIC LD Main Control and EMERGENCY ST OP Switches from 16 A to 125 A 7 Number and version of the contacts Rated data at 50 Hz ... 60 Hz 380 V ... 440 V DT Order No . PS* Weight per PU approx.
Siemens L V 10 · 2004 7/7 SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY ST OP Switches from 16 A to 125 A Mounting in distribution boar ds 7 1) 4th contact as N-conductor to be order ed separately; see Accessories for base mounting and distribution board mounting.
Siemens L V 10 · 2004 7/8 SENTRIC Switch Disconnectors Molded-plastic enclosures SENTRIC LD Main Control and EMERGENCY ST OP Switches from 16 A to 125 A 7 1) 4th contact as N-conductor to be order ed separately; see Accessories for base mounting and distribution board mounting.
Siemens L V 10 · 2004 7/9 SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY ST OP Switches from 16 A to 125 A Molded-plastic enclosures 7 Number and version of contacts Rated data at 50 Hz ... 60 Hz 380 V ... 440 V DT Order No . PS* Weig ht per PU approx.
Siemens L V 10 · 2004 7/10 SENTRIC Switch Disconnectors Accessories SENTRIC LD Main Control and EMERGENCY ST OP Switches from 16 A to 125 A 7 ■ Selection and ordering data DT 3LD2 0 PS* Weight per PU approx. DT 3LD2 1 and 3LD2 2 PS* Weight per PU approx.
Siemens L V 10 · 2004 7/11 SENTRIC Switch Disconnectors SENTRIC LD Main Control and EMERGENCY ST OP Switches from 16 A to 125 A Accessories 7 DT 3LD2 5 PS* Weight per PU approx. DT 3LD2 7 and 3LD2 8 PS* Weight per PU approx. Order No. Order No. For mounting on the front 3LD9 2.
Siemens L V 10 · 2004 7/12 SENTRIC Switch Disconnectors General data SENTRIC K Switch Disconnectors from 63 A to 1000 A 7 ■ T echnical specifications 1) T echnical specifications for CSA approval on request. 2) Configuring note: max. permissible operating temperature at connections 100 °C.
Siemens L V 10 · 2004 7/13 SENTRIC Switch Disconnectors SENTRIC K Switch Disconnectors from 63 A to 1000 A General data 7 1) T echnical specifications for CSA approval on request.
Siemens L V 10 · 2004 7/14 SENTRIC Switch Disconnectors Base mounting SENTRIC K Switch Disconnectors from 63 A to 1000 A 7 ■ Area of application SENTRIC KA switch disconnectors are implemented as main control switches and EMERGENCY -STOP switches for normal switching duty and isolation of main circuits and auxiliary cir- cuits.
Siemens L V 10 · 2004 7/15 SENTRIC Switch Disconnectors SENTRIC K Switch Disconnectors from 63 A to 1000 A Molded-plastic enclosures 7 ■ Benefits • Lockable with 3 padlocks • Generous terminal compartment • IP65 degree of pr otection • Maintenance-free • Easy to install.
Siemens L V 10 · 2004 7/16 SENTRIC Switch Disconnectors Accessories SENTRIC K Switch Disconnectors from 63 A to 1000 A 7 ■ Selection and ordering data 4) For further 3SB14 00–0 switching elements with other contact types, see “Pushbuttons and Indicator Lights".
Siemens L V 10 · 2004 7/17 SENTRIC NP Fuse Switch Disconnectors General data 7 ■ Area of application SENTRIC NP fuse switch disconnectors are switching devices for the occasional manual connection and disconnection of loads and distribution boards.
Siemens L V 10 · 2004 7/18 SENTRIC NP Fuse Switch Disconnectors General data 7 ■ T echnical specifications 1) 125/160 A only with 3NY1 236 supply terminals and with 21 mm wide fuse links 3NY1 822 (125 A) and 3NY1 824 (160 A); see Accessories. 2) Only for isolating links; otherwise note instructions of the fuse manufac- turer .
Siemens L V 10 · 2004 7/19 SENTRIC NP Fuse Switch Disconnectors General data 7 1) Only for isolating links; otherwise note instructions of the fuse manufac- turer .
Siemens L V 10 · 2004 7/20 SENTRIC NP Fuse Switch Disconnectors For power distrib ution 7 ■ Selection and ordering data For all fuse switch disconnectors with flat connection, the appro- priate cable lug covers (3NY7 101 to 3NY7 141) must be used for finger -safe cover acc.
Siemens L V 10 · 2004 7/21 SENTRIC NP Fuse Switch Disconnectors Accessories 7 ■ Selection and ordering data 1) The fuse switch disconnector can be used in the meter cabinet with the cable lug cover.
Siemens L V 10 · 2004 7/22 SENTRIC KL Switch Disconnectors with Fuses General data 7 ■ Area of application SENTRIC KL switch disconnectors with fuses protect against overload and short-circuits as main control and EMERGENCY - STOP switches of switchpanels, distribution boards, power sup- ply and motor feeders.
Siemens L V 10 · 2004 7/23 SENTRIC KL Switch Disconnectors with Fuses General data 7 ■ Accessories For the SENTRIC KL switch disconnectors, complete kits for standard and EMERCENCY -STOP use are available for installa- tion in the side and rear panels of switchgear cabinets.
Siemens L V 10 · 2004 7/24 SENTRIC KL Switch Disconnectors with Fuses Surface and flush mounting 7 ■ Selection and ordering data All switch disconnector s in IP00 degree of protection Conductor con.
Siemens L V 10 · 2004 7/25 SENTRIC KL Switch Disconnectors with Fuses Surface and flush mounting 7 All switch disconnector s in IP00 degree of protection Conductor connecting screws and fuse partitio.
Siemens L V 10 · 2004 7/26 SENTRIC KL Switch Disconnectors with Fuses Accessories 7 ■ Selection and ordering data 1) For further 3SB14 00–0 switching elements with other contact types, see “Pushbuttons and Indicator Lights". 2) For 3KX3 527–3AA: Not suitable for use with type A BS fuses.
Siemens L V 10 · 2004 7/27 SENTRIC KL Switch Disconnectors with Fuses Accessories 7 ■ Circuit dia grams Internal circuit dia gram for SENTRIC KL (for 3KL50 and 3KL51, only one auxiliary switch poss.
Siemens L V 10 · 2004 7/28 Fuses and Fuse Systems Introduction 7 ■ Overview Applications Applications for fuses range from installation systems in r esiden- tial buildings, non-residential buildings, trade and industry through to switchgear installations of the utilities.
Siemens L V 10 · 2004 7/29 Fuses and Fuse Systems Introduction 7 ■ Benefits For the 3KL switch disconnectors with fuse, a UL approval has been granted in combination with the new 3NE1 .
Siemens L V 10 · 2004 7/30 Fuses and Fuse Systems Introduction 7 ■ Selection and ordering data 1) If a cyclic load is applied, it may be necessary to fur ther reduce the cur- rents (please inquir e about precise values). 2) V alues in brackets apply to the 3NP4 fuse switch disconnector .
Siemens L V 10 · 2004 7/31 Fuses and Fuse Systems Introduction 7 1) If a cyclic load is applied, it may be necessary to fur ther reduce the cur- rents (please inquir e about precise values).
Siemens L V 10 · 2004 7/32 Fuses and Fuse Systems Introduction 7 1) If a cyclic load is applied, it may be necessary to fur ther reduce the cur- rents (please inquir e about precise values). ■ Further information Further combinations are available on request! For further infor mation on fuses, see Catalog SITOR Configuration, Order No.
Siemens L V 10 · 2004 7/33 Fuses and Fuse Systems NEOZED fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data No.
Siemens L V 10 · 2004 7/34 Fuses and Fuse Systems NEOZED fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Ve r s i o n S i z e For fuses up to Identifi- cation color DT Order No. PS* Weight per PU approx.
Siemens L V 10 · 2004 7/35 Fuses and Fuse Systems NEOZED fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Size Rated current I n Identification color DT Order No. PS* Weight per PU approx. A kg End caps For 5SH5 320, 5SH5 323, 5SH5 512, 5U2 204 A 5SH5 514 10 units 0.
Siemens L V 10 · 2004 7/36 Fuses and Fuse Systems DIAZED fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data • NDz, DII, DIII • AC/DC 500 V • Snap-on mounting T er minal Rated current I n Conductor cross-section Base width Thread DT Order No.
Siemens L V 10 · 2004 7/37 Fuses and Fuse Systems DIAZED fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Size Rated current I n Identification color Thread DT Or der No.
Siemens L V 10 · 2004 7/38 Fuses and Fuse Systems DIAZED fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Size Rated current I n Identification color Thread DT Or der No.
Siemens L V 10 · 2004 7/39 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data V ersion Size Rated curr ent I n DT Order No. PS* Weight per PU approx. A kg LV HRC fuse bases Size 0 .
Siemens L V 10 · 2004 7/40 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Ve r s i o n Size DT Order No. PS* Weight per PU approx. kg Mounting components for LV HRC fuses L V HRC signaling output For L V HRC fuse links with non-insulated grip lugs of size 000 .
Siemens L V 10 · 2004 7/41 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Characteristics are available on the Internet at www .siemens.de/installationstechnik Size Rated cur- ren t I n Rated voltage U N DT Non-insulated grip lugs PS* Weight per PU approx.
Siemens L V 10 · 2004 7/42 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Characteristics are available on the Internet at www .siemens.de/installationstechnik Size Rated current I n Rated voltage U N DT Insulated grip lugs PS* Weight per PU approx.
Siemens L V 10 · 2004 7/43 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Characteristics are available on the Internet at www .
Siemens L V 10 · 2004 7/44 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Characteristics are available on the Internet at www .siemens.de/installationstechnik Size Rated current I n Rated voltage U N DT Non-insulated grip lugs PS* Weight per PU approx.
Siemens L V 10 · 2004 7/45 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Characteristics are available on the Internet at www .siemens.de/installationstechnik Size Rated current I n Rated voltage U N DT Non-insulated metal grip lugs PS* Weight per PU approx.
Siemens L V 10 · 2004 7/46 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Characteristics are available on the Internet at www .siemens.de/installationstechnik Size Rated current I n Rated voltage U N DT Non-insulated grip lugs PS* Weight per PU approx.
Siemens L V 10 · 2004 7/47 Fuses and Fuse Systems L V HRC fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Characteristics are available on the Internet at www .siemens.de/installationstechnik Size Rated current I n Rated voltage U N DT Non-insulated grip lugs PS* Weight per PU approx.
Siemens L V 10 · 2004 7/48 Fuses and Fuse Systems Cylindrical fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Contacts Rated current I n For fuses of size MW DT Order No.
Siemens L V 10 · 2004 7/49 Fuses and Fuse Systems Cylindrical fuses * This quantity or a multiple thereof can be or dered. 7 ■ Selection and ordering data Size Rated current I n Rated volt- age U N DT Operational class gG PS* Weight per PU approx. DT Operational class aM PS* Weight per PU approx.
7/50 Siemens L V 10 · 2004 Fuses and Fuse Systems Notes 7.
An important point after buying a device Siemens AC-21 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Siemens AC-21 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Siemens AC-21 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Siemens AC-21 you will learn all the available features of the product, as well as information on its operation. The information that you get Siemens AC-21 will certainly help you make a decision on the purchase.
If you already are a holder of Siemens AC-21, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Siemens AC-21.
However, one of the most important roles played by the user manual is to help in solving problems with Siemens AC-21. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Siemens AC-21 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
