1SCC303002M0204, rev. D
38
Installation and operating instructions, OTM_C
Figure 9.2 OTM600U_C, OTM800-1600U_C_ and OTM1000-2500E_C_ mounting of phase barriers
9.1 Phase barriers
Phase barriers or shrouds (see section 8.3) must be used to maintain a clearance of 1 inch on the
motorized change-over switch types: OTM600U_C_, if the conductors are wider than 39 mm /1,54 in
(phase barrier 68838), on OTM800-1200U_C_, if the lugs are wider than 54 mm /2,13 in (phase barrier
68912) and on OTM1600U_C_, if the lugs are wider than 100 mm / 3,94 in (phase barrier 68912).
Phase barriers 68912 must be used on motorized change-over switches types OTM1000-2500_C_ if the
voltage is > 415 V.
The types for the package of 6 barriers are: 68838 = OTB800/6C and 68912 = OTB1600/6C .
9. UL standard switches
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