T911 17911302

= F N L V Q R Z H Terminal blocks = F L N V R Q Z H D Q O H R G U J X S U S V R X W H O H F H W N R U W K Q J H Q L F R D H U L O X J H F M R Rail connectors are apppplied in the electrotechniiical induuustry to connect con- Q H F H L R Z H U S Z G Z V R S V E L E Q U H U S J Z X O G Q Q L H X L D V D G Z D F J H Z L R R S ductors in the wattttles way follllowing at the same tiiime the guuuideliiines of the Q H F D L R S G J Z O G H P F H P K Q D Q L F P L H O H P Q N F U W M 6 X V R W H V L H M R G Q H F D L apppproopriate mechaniiical and electriiical connections. Rail connectors are used R Z H U S Z G U D Q Z R F Z G R W X U K M D N L L O Q N F Z R K D O G Q V L L N F K L H U G Q L F K S D Q L for both wiiired and stranded conductors for low and medium vollltages. 1 3 R U G X N W H W H S V Q L D M J R P Z L D P U R Q Q W Z H U D Z D H W Z X S W V D Q F F M K F D P U R Q K 7K H P H HW W K H U H TX L U H PHQWV GH VFUL LL EHG LQ WKH IRO OO OR Z L QJ VWD Q G DU G V P L R U G D Q G H Z R M ( , & ,Q WHU UU QD W LR QDO ,( & H S R U X H V M L N H M 1 ( (X U R S H DQ (1 Q P L H L F H L N H M ( 9 Gerrrman VDE 0611 0 7 ( 5 , . 2 5 3 8 6 8 5 , / & 2 1 1 ( & 7 2 5 % 2 < = F N L V Q R Z H S V R L D G D M N S X R U V Z Q N Q D R The body of each rail connector is made of the R U H V R N J H Q V D Z R V W R R Z H O H F H W N R U W K Q F L H Z U W R Z D polyamide PA 66 a popular material applied in the V J H Q W F X R M D P L N M V H W 3 R L O P D G L 3 2 F D Q G D V L electrotechnical industry. It brings optimum combi- Q R D P W S R P Q O L Z D F R Z L F P L D L F H P K Q D P Q L F L L H O H N nation of the mechanical and electrical properties P Q F U W L D P U W Z R D Q H U S L E F L H R R Q G U R S D Q OLNH EUHDNGRZQ & 7, FUHHS FXUUHQW DQG WKHUPD O U S G H S D F M H & 7 , R R Q G U R S D Q P U H W Q L F H V W D ageing resistance as well as good selfextingu- Q H U H L V L D U H S W P H U W X D D U S F & R G & ishing properties. In addition the polyamide PA 66 is E H K D Q H J O R N Z R Q H L Z D D U L R S H H F V L L O F Z N R Q R K a nonhalogen material (it does not contain any 3 % & F L G R Q N V - V H W H Z U W R Z P V Q W F X P R Z V D VLOLFRQ FRQQHFWLRQV 3 & % RU GLR LQ RI WKH ZRUNLQJ R Q F L F D K F F Q V D J R P D V K L E H K D P O Z R Q H J R W H P S H U D W X U H U D Q J H I U R P & W R & 6 DPRJDVQF 3 R OL DP LG 3 Selfextinguishing polyamide PA 66 : D F L R Z F L V D P R J D V Q F H Z H G X J 8 / N O D V D )ODPPDELOLW 8/ & ODVV 9 SD O QR F L 9 * ORZ ZLUH IODPPDELOLW LQGH & 2 R Q U R S G D Q D U H Z G X J ( , & & UNIVERSAL TERMINAL BLOCK = k & = . , 6 = < 1 2 : ( * : , 1 7 2 : ( 3 2 k & = ( 1 , ( * : , 1 7 2 : ( 7 + 5 ( 7 ( 5 0 , 1 / % / 2 & . 6 < 6 7 ( 0 & KDUDNWHU XM H V L RQ Z VR N NO DV Q L HSD O QR F L 9 : P WH V V LH SR Rail thread connectors provided by Siiimet are equipped with steel terrrmiiinals F H JZ Z F WR L Q K Q F ZD VR VWR K Z F N DF K 6 PH L W SU W M R F D L V N VWD Z O R and the currrrent cirrrcuits made of copper. Both parts are galvaniiized to increase Z Q VWD N U R L H P W U R X SU G J ZH R R P L H G L 2 E D H W PHQ O H SR N W U H V Z SR R ageing resiiistance. The system uses good features of the steel (the chamber N P D L JD Q ZD O P Q L F L Z L N V D F M P L F K R G QR SRU H Z J O GX QD H I HN W V W D terrrmiiinal) and the copper (the currrrent cirrrcuit). The steel brings optiiimum Q U H LD V L 7 U ZR WR V V W H P Z VWX N U R F M SR W Q Z H Z D F ZR L F L VWD OL mechanical features. Its elasticity, improved additionalllly by toughening, brings N U PR R D F D V L N ZD R L P L H G L WR U SU G Z R 6 WD O G D MH WX PD RSW Q O Z D F L durable connection of conductors in the terrrmiiinal. ZR SR G Z J O G H P F PH K Q D Q P L F - H M VSU VWR G R G DW N Z R R X Q V D O HS D When the screw is being put in place, the forrrce is generated and transmit- R E U E N F L HS Q O G D MH G R N QD R H I HN W Z F VWD SR L WUZD OH D PR FR Z D QH JR SU H ted to the steel. The steel is resiiistant to deforrrmations whereas at the same R Z X G Z F D V L N X 6 L D R G G Q D D Z F D W V R S L G R Q N H F U D L X U E G F R V L N H Z R M D W V R H M tiiime it affffects the mounted conductor. As a result, the connection is durable Q H U S V L H Q L R D D Q D W V O N W U D Q H L X D J O D Z U W H H M H G M F D P I U R L W O R N U S X P M H M M R G G L D and safe. X Z M F D Q D R P R F Z D Q Z H U S G U S H R F R S Q H F H L D P F K D U D N H W U D Z U W The terrrmiiinal design reduces siignificantly possiiibiiility of loosen of the con- . VWUX RQ N F MD F D V L NX DSUR M H N WRZDQ D M HV W WD N D E Q RJUD F L GR P Q L PX L P nection. Bended top surrrface of the plate becomes sliightly deforrrmed as PR OL ZR R Q E ZD R O X LD SR Q F H L D : Q Z L NX G R Q N FD U LD J D W L D J Q U D a result of screwing. Threaded wall is now set in the eccentric position which S Q F DV D EO DV NL X J O H D G H OL P N QH DW X R G N V WD Q FH L X ZR SR G X M F Q FHQ L H keeps the set screw in place. W Q U F H Z XVWD Q L H LH JZ QD QH ZD WR L Q M F L DQ NL EO R N X M F W P VD P P Q RZD WX XV LH In addition to ensure optiiimum conduction conditions, the brass currrrent UX E G F R V L N ZH R M cirrrcuit has been applied. The brass is susceptiiible to surrrface oxidation so to = G J UX L H M V W Q UR D E Q SHZ D L PD RSW Q O H UXQ ZD NL ZR SU H G Q H LD Z SR ensure appropriate protection, the cirrrcuit is galvaniiized. Q F H LX V D Q ZD W VR R M HV W W R U SU G Z R PRV L G X =H Z J O GX QD W R H PRV L G M HV W U WH PD L D H P SR G G D F M P V L V E NL P H X Z VR FH SUR L Z SR L HU F K Q J ZH L R R XW Q O H Q L D LD V L W R U M HV W SR N W U Z SR R N JD Q ZD O Q L F 5 R N D G V L Z DF L V NX JZ L QWRZ P Forces distribution in the thread terminal block. Z Z Z V L P H W F R P S O = F N L V Q R Z H Terminal blocks = k & = . , 6 = < 1 2 : ( 6 0 2 = & , 6 2 . : ( SPRING CAGE TERMINAL BLOCKS 3 2 k & = ( 1 , ( 6 0 2 = & , 6 . 2 : ( 777 + ( 6 3 5 , 1 * & * ( 7 ( 5 0 , 1 / 6 < 6 7 ( 0 6 H W V P F D R P D V V L N Z R V Q D Z R N X U W V Q R M V H W R S G R E Q H L M D N Z R S Q H F X L The spring cage terrrmiiinal system is equipped with two elements (a copper, 1 Z J Z R W L Q P G Z F K R S R G S V H Z U R W X U S G J H Z R R Z N J H Q D Q R R P L H G L L galvaniiized currrrent cirrrcuit and a stainless steel spring). The forrrce in the terrrmi- R S N J H W U R Z R S R N D J Q O D Z L Q F D U R U S V Q Z N H Q D Q R M H D W V L O N R R V D Z G QD O L V D GGG MX VWH G XV L QJ VW D LQ O HVV VW H H O VSU L QJ Z KL F K L V D G GL W L RQD OOO O LP SU R YH G E H Q U R S M F R L V N Z F D V L X N X J H U Q D Z O R M V H W D W V Z O R U S V Q G R G W D N Z R R R S G toughening. G Q D R E U E F H F L S H H Q O M D O G D Z U W X Q O H D L V L R G G L D Q D Z D L H W Q H P O H X D Q Z H U S G The solution keeps the conductor under the load of the defiiined forrrce and as H = J Z O X G D Q R W Z H U S G D R P R F Z D Q Z D W P L N R S Q H F X L M V H W D W V H O R S G G D the result, the possiiibiiility of loosen of the connection is siiigniiifiicantly reduced. Q F D Q V L N Z R L H W M H P D V M D P W S R Q O H L G R E H Q D U M V L Q H L X D J O H M F R Q E D Z R O X X L Z D U W N F H L H N S V F D W D O R L M The main advantages of the design compared to rail thread connector & H L N L Q Q P M H Q F D G Q R Q H L U Z Q L D F M P R W U D Z D W L N J H Q R D Z R F R P D D L system are reduced tiiime and faciiilitation of assembly. It is sufffficient to gently Z Q X V R W V X N R G R S Q H F D L Z J J H Z R W L Q R M V H W J M H R R Z W D L V E N R D W Q R P X lever the spring using a screw driver, put the conductor in place and release : F U D W V D R S R P F X U E R N W U D G H L O N Q W D H L R S G D Z U S V Q G F R V L N Z R the spring. Then the conductor is well fastened. In addition it is possiiible to D Z R U S Z G L Z H U S G L R Z Q O L R S G D Z Q H L H D E Z H U S G E D Z U W H O D R P R F use spring cage terrrmiiinal blocks where viiibrations may occur. Then the spring Z D Q D P W S R Q O V L G F R V L N Z R R G W D N Z R D W O H M V H W H U S M F Q H U I H D X W N R reduces siignificantly possiiibiiility of loosen of connection. Siiimet offffers two main Q D Z D L J W H R F D V L X N Z Q X U D Z N F D K J G H L X S W V Z M G Q D J U L D 6 Q U S D Q H Z L O X H M W SHV RI VSULQJ FD JH WHU UU PL LL QDO EORFNV ZLWK WKH IURQW DQG WKH VL G H H Q W U G L L N R Z V M H M D W V H M V L H O G F R V L X N R P L O R Z R Q E D Z R O X D L V L R Z H U S X G Z F W K Q X U D Z N F D K Spring cage terrrmiiinal blocks with the front side entry are applied when the : V U H Z M F D K U S F W M K U S H 6 H P L W X S W V Z M G Z J D H U H V R S W L H F N conductor is inserrrted paraller to the mounting rail. Spring cage terrrmiiinal F D R P D V V L N F Z R K D Z R U S Z G Q H L R Z P H H U S X G E R X N L R G J U L 3 V Z U H R S V blocks with the back side entry are used when there is lack of erection space V E X Q D Z M V H W U S D U W G F Q M P U S Q D F X L J G H L D Z R U S Z G Q D H L R Z H U S X G and when the conductors are fastened starrting from the front of the terrrmiiinal. R G F L N R G E Z D V L U R Q Z O J H H O R G V Q D Q N W H U M D R P R F Z D H Q V F L N The spring cage terrrmiiinal system allllows to put more rail connectors in the J X U L D H U H V R S W J Z Q D Z W V N U R M V H W W D P J G H L D P P R G Q F Q L H D L H G I L row. In addition it is alllso easier to fasten the conductor. F W H P Q H U W V H U S L D W Q R P H Z R M L R Z H U S G R P R F Z D H Q V R G R F D F L N 6 V W H P W H Q D Z R S D O D Q Q D Z R V R W V D H L V J J H V W Q R D Z R X W V X D L J H U H V Z H F N F Z R Q V K : R J G Q L H V M H M V H W U Q Z L H Q D Z R F R P D H L R Z H U S G X 3 U HZ G Z SR F HQ LX VDPR DF L V N RZ P The conductor in spring cage terminal blocks Z Z Z V L P H W F R P S O