Disconnecting switches OMI, OMZI contacting switching devices securing the safe disconnecting distance in accordance with requirements determined for the disconnecting switches by a technical standard in OFF position - used for visible disconnection of electric device after disconnection of performance switches 12kV a 25kV. - used for disconnection of the sections, whole networks, machines and devices for the purposes of repairs, revisions etc. - they replace the types OM and OMZ - can be assembled into cells of internal distributions, ambient temperature from -5°C up to 40°C altitude up to 1000 m - can be assembled in horizontal or vertical position Comply with EN 60 271-102 Degree of protection: IP 00 (EN 60 529) - Insulators: epoxy, porcelain - current conducting parts: Cu galvanically silvered - busbars: Cu, Al - possibility to produce the version for heavy climatic conditions - control: - manual or electromotive Type designation OMI (OMZI) XX / XXXX - XX - XX - X - XX accessories (BLM = locking solenoid) drive location (P = right, L = left) drive type (RP = manual, EP = electromotive) earther (0 - without earther (OMI) or earther on lower contacts (OMZI), 1 = without shaft, switching off by means of a switching-off bar, 2 = earther on the upper contacts). number of poles (1 = single-pole, 2 = two-pole, 3 = three-pole) rated current (A): 400, 630, 1250, 1600, 2000, 3150*, 4000* (* = only OMI, OMZI 12kV) rated voltage (kV): 12kV, 25 KV disconnecting switch type (OMI - without earther, OMZI with earther) Designation examples: Example 1: OMI 25 / 1250 30 EPU L - Disconnecting switch for 22 kV, 1250 A, three pole, EPU drive (The project designer shall specify the supply voltage and emergency control mode). Example 2: OMI 12 / 630 30 RP1 L BLM - Disconnecting switch for 12 kV, 630 A, three pole, manual drive located in the left and provided with locking solenoid. (The project designer shall specify the rated voltage of the BLM locking solenoid and supporting bearing location mode). Example 3: OMZI 12 / 3150 30 EPU P - Disconnecting switch for 12 kV, 3150 A, three pole, EPU drive for main knives located in the left, the EPU drive for earthing knives located in the right (The project designer shall specify the supply voltage, number and length of handling bar ESPA 415.3. The standard length of the handling bar is 3000 mm). Example 4: OMZI 25 / 400 32 ETMP L - Disconnecting switch for 22 kV, 400 A, three pole, ETMP drive for main knives located in the left, the ETPM drive for earthing knives located in the right (The project designer shall specify the supply voltage, number and length of handling bar ESPA 415.3. The standard length of the handling bar is 3000 mm). G3 Disconnecting switches OMI, OMZI teCHnICal Data Rated voltage, kV with the atmospheric pulse, kV Rated voltage, kV Against the earth, between poles and disconnected contacts 75 125 12 25 In the disconnecting route 85 145 Rated 1 min. short-term holding AC voltage of the industrial frequency, kV Against the earth, between poles and disconnected contacts 28 50 In the disconnecting route 32 60 Without the earther type designation Rated voltage, kV Rated current, a OMI 12/400-30 OMI 12/630-30 OMI 12/1250-30 OMI 12/1600-30 OMI 12/2000-30 OMI 12/3150-30 OMI 12/4000-30 OMI 25/400-30 OMI 25/630-30 OMI 25/1250-30 OMI 25/1600-30 OMI 25/2000-30 12 12 12 12 12 12 12 25 25 25 25 25 400 630 1250 1600 2000 3150 4000 400 630 1250 1600 2000 nom. short-term current 1 s, ka 16 25 40 40 50 60 80 16 25 40 50 50 nom. dynamic current, ka 40 63 100 100 125 150 200 40 63 100 125 125 Weight*, kg nom. short-term current 1 s, ka 16 25 40 40 50 60 60 16 25 40 50 50 nom. dynamic current, ka 40 63 100 100 125 150 150 40 63 100 125 125 Weight*, kg 20 23 51 82 115 130 190 36 39 71 110 155 * Weight of the basic version without accessories With the earther type designation Rated voltage, kV OMZI 12/400-30 OMZI 12/630-30 OMZI 12/1250-30 OMZI 12/1600-30 OMZI 12/2000-30 OMZI 12/3150-30 OMZI 12/4000-30 OMZI 25/400-30 OMZI 25/630-30 OMZI 25/1250-30 OMZI 25/1600-30 OMZI 25/2000-30 Rated current, a 12 12 12 12 12 12 12 25 25 25 25 25 * Weight of the basic version without accessories omZI 25/400-30 with etmp G4 400 630 1250 1600 2000 3150 4000 400 630 1250 1600 2000 27 29 60 95 160 170 230 42 44 80 135 180 Disconnecting switches OMI, OMZI Dimensional layouts Three-pole disconnecting switches 400 and 630 A Type OMI 12/400-30 OMI 12/630-30 OMI 25/400-30 OMI 25/630-30 OMZI 12/400-30(32) OMZI 12/630-30(32) OMZI 25/400-30(32) OMZI 25/630-30(32) kg 30 35 40 45 48 50 64 66 A 484 506 584 606 484 506 584 606 B 600 600 810 810 600 600 810 810 C 430 430 630 630 430 430 630 630 D 255 255 335 335 255 255 335 335 F 200 200 300 300 200 200 300 300 H 560 560 770 770 560 560 770 770 K 320 320 420 420 320 320 420 420 L 415 415 520 520 415 415 520 520 L1 475 475 560 560 475 475 560 560 N 76 76 76 76 76 76 76 76 P 32 40 32 40 32 40 32 40 R Ø18 Ø18 Ø18 Ø18 Ø18 Ø18 Ø18 Ø18 S M12 M16 M12 M16 M12 M16 M12 M16 T 15 25 15 25 15 25 15 25 V 165 165 260 260 U 110 110 160 160 Three-pole disconnecting switches 1250 A Type kg A OMI 12/1250-30 80 600 OMI 25/1250-30 90 715 OMZI 12/1250-30(32) 110 600 OMZI 25/1250-30(32) 130 715 B 600 810 600 810 C 540 710 540 710 D 321 401 321 411 F 200 300 200 300 H 560 770 560 770 K 320 420 320 420 N 76 76 76 76 P 60 60 60 60 R Ø18 Ø18 Ø18 Ø18 S M12 M12 M12 M12 T 20 20 20 20 T1 40 40 40 40 U V L 415 520 110 220 415 160 300 520 L1 475 560 475 560 G5 Disconnecting switches OMI, OMZI three-pole disconnecting switches 2000 a, 3150 a type OMI 12/2000-30 OMI 25/2000-30 OMZI 12/2000-30(32) OMZI 25/2000-30(32) OMZI 12/3150-30 kg 102 132 112 152 143 a 810 930 810 930 840 B 924 1120 924 1120 924 omI 25/400-30 with etmp G6 C 360 479 360 479 410 D 610 760 610 760 650 F 280 350 280 350 280 H 844 1040 844 1040 844 J 455 555 455 555 455 l 540 640 540 640 540 l1 655 855 655 855 655 m 154 230 154 230 154 V 345 425 355 435 345 s 10 10 10 10 10 omI with fuse base p 100 100 100 100 100 t 20 20 20 20 20 t1 40 40 40 40 40 t2 25 25 25 25 25 t3 50 50 50 50 50 n 94 94 94 94 94 Disconnecting switches OMI, OMZI Three-pole disconnecting switches 400 and 630 A with the ETMP drive with emergency control by means of the switching-off bar ESPA 415.3 terminals cam switch G7 Disconnecting switches OMI, OMZI adjustable rod adjustable rod bearing G8 Disconnecting switches OMI, OMZI Disconnecting switch OMZI 12/3150 - 30L with EPU support bearing terminal cam switch G9 according to request max. 1600 Disconnecting switches OMI, OMZI adjustable rod adjustable rod bearing according to request max. 1500 G10 Disconnecting switches OMI, OMZI Disconnecting swith OMI 12/4000 - 30L with EPU on frame G11