Ordering Information Model 5550 Mechanical Vibration Switch Hazardous Area Rating(1) 4 ATEX/IECEx/ECAS/NEPSI Flameproof Ex d IIB+H2 T6 Gb Ex tb IIIC T85°C Db Ta -40°C to +70°C IP66 Relay Contacts 2 DPDT, Silver, 15A(2) Reset / Startup Delay Coil Holding Strength(3) 1 5g Reset / Startup Delay Coil Voltage 0 None(3)(4) Wiring Entry / Mounting Hole Pattern(5) 4 M20 x 1.5 / Metrix 5097, VS-2 EX, or 3666(6) Environmental Rating 1 NEMA 4X / IP66 For SIL approval, replace the first character in option A with an “S”INMETRO approvals (A=11) available with silver relay contacts only (B=1 or B=2)When D=0 (no reset /startup delay coil), the C option is ignored regardless of which value is selected. All switches ship with a full-scale range of approximately 16gs. For A = B or C and D = 0, F will = 3 or 4Consult Figure 1 for mounting plate dimensions corresponding to E options.UL US/CA approvals require tapered threads for conduit and are not compatible with option E=4, E=6, or E=8.
