Ashcroft B Series Pressure Switches

The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet boiler/burner, NACE and fire-safe applications.

B Series

269 items

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  • Ashcroft B4, Type 400 Pressure Switch
    B424SXFMFSNH07200# Ashcroft Pressure Switch
    B424SXFMFSNH07200#

    Ashcroft

    Product Type: Pressure Switches

    Ashcroft B4, Type 400 Pressure Switch, 1/4" and 1/2" FPT, 125/250/480 VAC, 30/125/250 VDC, 15/1/2/1/4/6 A, SPDT, 200 PSI, NEMA 3/4/4X/13, IP66, Epoxy Coated Aluminum, Direct/Surface Mount, Rugged Diaphragm/316L Stainless Steel Sealed Piston Actuator,...
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  • Ashcroft B4, Type 400 Pressure Switch
    B424BXFMFSNH07100# Ashcroft Pressure Switch
    B424BXFMFSNH07100#

    Ashcroft

    Product Type: Pressure Switches

    Ashcroft B4, Type 400 Pressure Switch, 1/4" and 1/2" FPT, 125/250/480 VAC, 30/125/250 VDC, 15/1/2/1/4/6 A, SPDT, 100 PSI, NEMA 3/4/4X/13, IP66, Epoxy Coated Aluminum, Direct/Surface Mount, Rugged Diaphragm/Buna-N Sealed Piston Actuator, Water Tight,...
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  • Ashcroft B4, Type 400 Pressure Switch
    B420B15# Ashcroft Pressure Switch
    B420B15#

    Ashcroft

    Product Type: Pressure Switches

    Ashcroft B4, Type 400 Pressure Switch, 1/4" FPT, 125/250 VAC, 120 VDC, 15/0.4 A, SPDT, 15 PSI, NEMA 3/4/4X/13, IP66, Epoxy Coated Aluminum, Direct/Surface Mount, Rugged Diaphragm/Buna-N Sealed Piston Actuator, Water Tight, Narrow Deadband, Single...
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  • Ashcroft B4, Type 400 Pressure Switch
    B428B15# Ashcroft Pressure Switch
    B428B15#

    Ashcroft

    Product Type: Pressure Switches

    Ashcroft B4, Type 400 Pressure Switch, 1/4" FPT, 125/250 VAC, 15 A, SPDT, 15 PSI, NEMA 3/4/4X/13, IP66, Epoxy Coated Aluminum, Direct/Surface Mount, Rugged Diaphragm/Buna-N Sealed Piston Actuator, Water Tight, Manual Reset Trip on Increasing, Single...
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  • Ashcroft B4, Type 400 Pressure Switch
    B427SXCHFMNH600# Ashcroft Pressure Switch
    B427SXCHFMNH600#

    Ashcroft

    Product Type: Pressure Switches

    Ashcroft B4, Type 400 Pressure Switch, 1/4" FPT, 125/250 VAC, 15 A, SPDT, 600 PSI, NEMA 3/4/4X/13, IP66, Epoxy Coated Aluminum, Direct/Surface Mount, Rugged Diaphragm/316L Stainless Steel Sealed Piston Actuator, Water Tight, Single Setpoint, Pressure...
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  • Ashcroft B4, Type 400 Pressure Switch
    B420B30# Ashcroft Pressure Switch
    B420B30#

    Ashcroft

    Product Type: Pressure Switches

    Ashcroft B4, Type 400 Pressure Switch, 1/4" FPT, 125/250 VAC, 120 VDC, 15/0.4 A, SPDT, 30 PSI, NEMA 3/4/4X/13, IP66, Epoxy Coated Aluminum, Direct/Surface Mount, Rugged Diaphragm/Buna-N Sealed Piston Actuator, Water Tight, Narrow Deadband, Single...
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  • Ashcroft B4, Type 400 Pressure Switch
    B425B3000# Ashcroft Pressure Switch
    B425B3000#

    Ashcroft

    Product Type: Pressure Switches

    Ashcroft B4, Type 400 Pressure Switch, 1/4" FPT, 125 VAC/VDC, 1/8 HP, 10 A, SPDT, 3000 PSI, NEMA 3/4/4X/13, IP66, Epoxy Coated Aluminum, Direct/Surface Mount, Rugged Diaphragm/Buna-N Sealed Piston Actuator, Water Tight, Heavy Duty, Single Setpoint,...
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  • Ashcroft B4, Type 400 Pressure Switch
    B461BXFM07400# Ashcroft Pressure Switch
    B461BXFM07400#

    Ashcroft

    Product Type: Pressure Switches

    Ashcroft B4, Type 400 Pressure Switch, 1/4" and 1/2" FPT, 125/250 VAC, 120 VDC, 15/0.4 A, 2SPDT, 400 PSI, NEMA 3/4/4X/13, IP66, Epoxy Coated Aluminum, Direct/Surface Mount, Rugged Diaphragm/Buna-N Sealed Piston Actuator, Water Tight, Dual Narrow...
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