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101NN, 121NN
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Weatherproof (Single diaphragm)
Brochures: Form 468 Series 101/121 Differential Pressure Switches
I/O Manuals: Form 506 Series 101/121 Differential Pressure Switches
Low Cost
Ranges from 3 to 500 psid
Set point adjustment with calibrated scale
CSA, CE
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101RN, 121RN
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Weatherproof, Terminal Block Connections (Single diaphragm)
Brochures: Form 468 Series 101/121 Differential Pressure Switches
I/O Manuals: Form 506 Series 101/121 Differential Pressure Switches
Ranges from 3 to 500 psid
Set point adjustment with calibrated scale
CSA, CE
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101L, 121L
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Explosion Proof (Single diaphragm)
Brochures: Form 468 Series 101/121 Differential Pressure Switches
I/O Manuals: Form 506 Series 101/121 Differential Pressure Switches
Low Cost
Ranges from 3 to 500 psid
Set point adjustment with calibrated scale
UL: Class I, Group C, Div. 1 (as an outlet box)
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101B3, 121B3
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Explosion Proof, UL/CSA/ATEX (Single diaphragm)
Brochures: Form 468 Series 101/121 Differential Pressure Switches
I/O Manuals: Form 506 Series 101/121 Differential Pressure Switches
Terminal block connections
Ranges from 3 to 500 psid
Set point adjustment with calibrated scale
Set point adjustment without declassification of hazardous area
UL/CSA: Class I, Group B, Div. 1; ATEX: EEx d IIC T6
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Big Hermet
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Big Hermet - Explosion Proof, Hermetically Sealed (Single diaphragm)
Brochures: Form 468 Series 101/121 Differential Pressure Switches
I/O Manuals: Form 506 Series 101/121 Differential Pressure Switches
Hermetically sealed snap switch(es)
Ranges from 3 to 500 psid
Set point adjustment without declassification of hazardous area
Unit: UL/CSA: Class I, Group A, Div. 1; SnapSw: UL/CSA, SAA
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Mini-Hermet
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Mini-Hermet - Explosion Proof, Hermetically Sealed (Single diaphragm)
Brochures: Form 468 Series 101/121 Differential Pressure Switches
I/O Manuals: Form 506 Series 101/121 Differential Pressure Switches
Hermetically sealed snap switch(es)
Ranges from 3 to 500 psid
Set point adjustment without declassification of hazardous area
Unit: UL/CSA: Class I, Group A, Div. 1; ATEX: EEx d IIC; SnapSw: UL/CSA, ATEX, SAA
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RB
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Weatherproof (Dual, opposed diaphragms)
Brochures: Form 386 Opposed Piston Differential Pressure Switches
I/O Manuals: Form 279 Opposed Piston Differential Pressure Switches
Terminal block connections
Ranges from 0.5 to 1000 psid
Set point adjustment with calibrated scale
CSA, CE |
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S
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Explosion Proof (Dual, opposed diaphragms)
Brochures: Form 386 Opposed Piston Differential Pressure Switches
I/O Manuals: Form 279
Ranges from 0.5 to 500 psid
Set point adjustment with calibrated scale
UL: Class I, Group C, Div. 1 (as an outlet box)
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102W1, 103W1 |
Weatherproof (High static operation)
Brochures: Form 388 Series 101/103 Differential Pressure Switches
I/O Manuals:
Form 420 Series 102 Differential Pressure Switch,
Form 391 Series 103 Differential Pressure Switch
Negligible temperature and/or static influence
Ranges from 7 inwc to 2500 psid
CSA, CE
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102AD, 103AD
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Explosion Proof, Hermetically Sealed (High static operation)
Brochures: Form 388 Series 101/103 Differential Pressure Switches
I/O Manuals:
Form 420 Series 102 Differential Pressure Switch,
Form 391 Series 103 Differential Pressure Switch
Negligible temperature and/or static influence
Hermetically sealed snap switch(es)
Ranges from 7 inwc to 2500 psid
Set point adjustment without declassification of hazardous area
Unit: ATEX: EEx d IIC; SnapSw: UL/CSA, ATEX, SAA
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107AL
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Weatherproof (Low range)
Brochures: Form 459 Series 107 Low Differential Pressure Switches
I/O Manuals: Form 492 Series 107 Low Differential Pressure Switch
Ranges from 0.25 to 40 inwc
FM, CSA
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107EL
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Explosion Proof, Hermetically Sealed (Low range)
Brochures: Form 459 Series 107 Low Differential Pressure Switches
I/O Manuals: Form 492 Series 107 Low Differential Pressure Switch
Hermetically sealed snap switch(es)
Ranges from 0.3 to 40 inwc
Set point adjustment without declassification of hazardous area
SnapSw: UL/CSA, ATEX, SAA
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