Công tắc áp suất United Electric H117-520 300 Vac to 0 -746,7 to 0 0.8 to 32 2,0 to 79,6 100 6,9 100 6,9
Công tắc áp suất United Electric H117-521 10 Vac to 10 -24,9 to 24,9 0.4 to 2.4 1,0 to 6,0 100 6,9 100 6,9
Công tắc áp suất United Electric H117-522 50 Vac to 50 -124,5 to 124,5 0.4 to 12 1,0 to 29,9 100 6,9 100 6,9
Công tắc áp suất United Electric H117-523 0.5 to 5 1,2 to 12,4 0.4 to 1.2 1,0 to 3,0 100 6,9 100 6,9
Công tắc áp suất United Electric H117-524 2.5 to 50 6,2 to 124,5 0.4 to 3.2 1,0 to 8,0 100 6,9 100 6,9
Công tắc áp suất United Electric H117-525 10 to 250 24,9 to 622,3 0.4 to 24 1,0 to 59,7 100 6,9 100 6,9
Welded 316L stainless steel diaphragm and 1/2” NPT (female) pressure connection, large 0.72” orifice for clean-out purposes
Công tắc áp suất United Electric H117-530 300 Vac to 0 -746,7 to 0 0.8 to 60 2,0 to 149,3 50 3,4 100 6,9
Công tắc áp suất United Electric H117-531 10 Vac to 10 -24,9 to 24,9 0.4 to 2.4 1,0 to 6,0 50 3,4 100 6,9
Công tắc áp suất United Electric H117-532 50 Vac to 50 -124,5 to 124,5 0.4 to 12 1,0 to 29,9 50 3,4 100 6,9
Công tắc áp suất United Electric H117-533 0.5 to 5 1,2 to 12,4 0.4 to 1.2 1,0 to 3,0 50 3,4 100 6,9
Công tắc áp suất United Electric H117-534 2.5 to 50 6,2 to 124,5 0.4 to 3.2 1,0 to 8,0 50 3,4 100 6,9
Công tắc áp suất United Electric H117-535 10 to 250 24,9 to 622,3 0.4 to 40 1,0 to 99,6 50 3,4 100 6,9

Type E117 Bulb OD x length
Công tắc áp suất United Electric E117-2BSA -120 to 100 -84.4 to 37.8 150 65.6 10 5 3/8 x 2-5/8”
Công tắc áp suất United Electric E117-5BS -20 to 80 -28.9 to 26.7 130 54.4 5 2 3/8 x 5”
Công tắc áp suất United Electric E117-4BS 25 to 100 -3.9 to 37.8 150 65.6 2 1 3/8 x 6-3 ⁄ 4”
Công tắc áp suất United Electric E117-2BSB 30 to 250 -1.1 to 121.1 300 148.9 10 5 3/8 x 2-5/8”
Công tắc áp suất United Electric E1173BS 100 to 400 37.8 to 204.4 450 232.2 10 5 3/8 x 2-1 ⁄ 8”
Công tắc áp suất United Electric E1178BS 350 to 640 176.7 to 337.8 690 365.6 10 5 3/8 x 3-1 ⁄ 4”

Pressure Type H117 - One SPDT output; epoxy coated enclosure; internal adjustment with “High-Low” reference scale
Differential Pressure Type H117K - One SPDT output; epoxy coated enclosure; internal adjustment with “High-Low” reference scale
Temperature Type B117 - Immersion stem; One SPDT output; epoxy coated enclosure; internal adjustment with reference dial
Type E117 - Bulb and capillary; One SPDT output; epoxy coated enclosure; internal adjustment with reference dial
SWITCH OPTIONS*
1190 Hermetically sealed, with gold flash contacts, DPDT, 11 amp 125/250 VAC; products set on rising pressure or
temperature due to inherent separation of circuits on falling pressure or temperature; specify option 1195 if setting on
fall is required; deadband and minimum set point will increase. NOT AVAILABLE MODELS 523, 533
1195 Hermetically sealed, with gold flash contacts, DPDT, 11 amp 125/250 VAC; products set on falling pressure or
temperature due to inherent separation of circuits on rising pressure or temperature; specify option 1190 if setting on
rise is required; deadband and minimum set point will increase. NOT AVAILABLE MODELS 523, 533
SENSOR AND OTHER OPTIONS
M201 Factory set one switch; specify increasing or decreasing pressure or temperature and set point
M277 Range indicated on nameplate in kPa/MPa, factory selected. NOT AVAILABLE TEMPERATURE VERSIONS
M278 Range indicated on nameplate in Kg/cm2. NOT AVAILABLE TEMPERATURE VERSIONS
M401 NACE MR0175 wetted material compliance. AVAILABLE MODELS 171-174, 183-186, 188-189, 190-193, 483-486,
488-489, 490-493. Consult factory for details on repeatability, deadband and overpressure limits.
M405 Intrinsic safety compliance for European Union per ATEX standards
M406 Intrinsic safety compliance for Russia per EAC standards
M444 Paper ID tag
M446 Stainless steel ID tag & wire attachment - 2 lines of 25 characters each max.
M449 Surface and pipe mounting hardware ki for models 520 to 535 & 540 to 548. For all other models use the
mounting hardware kit # 6361-704
M504 316L stainless steel immersion stem. AVAILABLE TEMPERATURE MODELS 120, 121 ONLY
M540 Viton® construction (deadband and low end range may increase); wetted parts include Viton® diaphragm and
O-ring. AVAILABLE ON MODELS 700-704 (Viton diaphragm and o-ring, stainless steel pressure connection), AND
540-548 (Viton diaphragms and seals, pressure connections remain aluminum)
M550 Oxygen service cleaning; alcohol cleaning to remove residue from the process connection. NOT AVAILABLE PRESSURE
MODEL 706 OR TEMPERATURE TYPE E117
SD6286-51 Watertight conduit fitting; converts 7/8” hole to 1/2” NPT (female) fitting
6361-704 Surface and pipe mounting hardware kit for all models. Required for surface mounting models 520-535 & 540-548 if
not previously ordered with option M449.