Model | Chamber material and pipe size | Max. No. of switch mechan. | Control press. rating | Minimum liquid Sp.Gr | Switch contact type | Switch contact rating | Psig | Bars | 100?F | 750?F | 38℃ | 400℃ Max. | OMS-F401 | Carbon steel (4") | 2 | 285 | 95 | 20 | 7 | 0.57 | 120VAC, 15A | SPDT | OMS-F402 | Carbon steel (4") | 2 | 600 | 450 | 41 | 31 | 0.65 | 120VAC, 15A | SPDT | OMS-F301 | Carbon steel (3") | 1 | 285 | 95 | 20 | 7 | 0.67 | 120VAC, 15A | SPDT | OMS-F302 | Carbon steel (3") | 1 | 350 | 260 | 24 | 18 | 0.67 | 120VAC, 15A | SPDT | OMS-S401 | Carbon steel (4") | 2 | 600 | 450 | 41 | 31 | 0.65 | 120VAC, 15A | SPDT | OMS-S301 | Carbon steel (3") | 1 | 300 | 225 | 21 | 16 | 0.57 | 120VAC, 15A | SPDT | OMS-S302 | Carbon steel (3") | 1 | 350 | 260 | 24 | 18 | 0.67 | 120VAC, 15A | SPDT | OMS-SF | Carbon steel | 1 | 230 | 95 | 16 | 7 | 0.50 | 120VAC, 15A | SPDT | OMS-TF | Carbon steel | 1 | 225 | 165 | 16 | 11 | 0.81 | 120VAC, 15A | SPDT | OMS-S303 | Carbon steel | 1 | 285 | 95 | 20 | 7 | 0.70 | 120VAC, 15A | SPDT |
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