Ordering Information Model 5550 Mechanical Vibration Switch Hazardous Area Rating 0 None, silver contacts(1)(2) Relay Contacts 1 SPDT, Silver, 15A(1)(3) Reset / Startup Delay Coil Holding Strength(4) 1 5g Reset / Startup Delay Coil Voltage 0 None(2)(4) Wiring Entry / Mounting Hole Pattern(5) 4 M20 x 1.5 / Metrix 5097, VS-2 EX, or 366(6) Environmental Rating 0 NEMA 4 / IP66(2) Options A=0 through A=4 are only compatible with B=1 or B=2. Options A=5 through A=9 are only compatible with B=3 or B=4. If left blank, option 0 is provided.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 fullscale range of approximately 16gs.Consult 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, 6, or 8.
