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Technical Specs

 MTBF Statistics

Reliability Information Analysis Center (RIAC)
Established by the Department of Defense, created the "MTBF" (Mean Time Before Failure) statistics that dramatize the long term benefits of the SPD system. Beyond the electrical savings, herein lies the real value.



Actual Field MTBF
[Hours & Years]

Increase in MTBF
[After Install SPD]

Circuit Boards, Single Sided

87,600 Hrs., 10 Yrs.

4,229,000 Hrs., 483 Yrs.

Circuit Breakers, General

105,120 Hrs., 12 Yrs.

1,337,550 Hrs., 153 Yrs.

Circuit Breakers, Power Switch

105,120 Hrs., 12 Yrs.

347,167 Hrs., 40 Yrs.

Electric Motors, Fractional HP

78,840 Hrs., 9 Yrs.

667,455 Hrs., 76 Yrs.

Electric Motors, Full HP

61,320 Hrs., 7 Yrs.

226,351 Hrs., 26 Yrs.

Electric Motors, Induction

35,040 Hrs., 4 Yrs.

138,000 Hrs., 16 Yrs.

Fan, Axial

175,200 Hrs., 20 Yrs.

539,000 Hrs., 62 Yrs.

Fan, General

131,400 Hrs., 15 Yrs.

357,941 Hrs., 41 Yrs.

Lamp, Incandescent

8,760 Hrs., 1 Yr.

26,280 Hrs., 3 Yrs.

Lamp, Florescent

20,000 Hrs., 2.28 Yrs.

52,560 Hrs., 6 Yrs.

Regulator, Thermostat

140,160 Hrs., 16 Yrs.

205,831 Hrs., 24 Yrs.

Switch, Toggle

262,800 Hrs., 30 Yrs.

3,673,429 Hrs., 419 Yrs.


Complete 3-phase unit in a 4X rated enclosure. All units are approved for wet and hazardous locations.








All boards are conformal coated with an insulator to eliminate arcing.









Fault indicator pin will pop out if due to a surge event, one of the MOV boards is damaged and no longer functional. In the event the MOV board is damaged, the open structure allows the MOV board to be replaced without replacing the entire unit.