J40 Series
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skeleton Pressure and vacuum switches features • Sealed Metal Bellows Sensor • Brass or Phosphor Bronze Wetted Material • Small Size • I5 A SPDT Switch Output • Easy to Wire Screw Terminals • Adjustable Ranges from 30” Hg Vac to 300 psi (-1 to 20,7 bar) J 4 0 - B - 0 5 LEADERS IN SAFETY, ALARM & SHUTDOWN

The J40 can be utilized in OEM applications where compact size and performance are required. The sealed bellows sensor provides a “leak-free” sensor for applications where elastomers are unacceptable. Proven reliability involving sterilizers, plasma-cutting, anesthesia equipment, and even protective switching devices for power equipment, have made the J40 a versatile OEM pressure switch. • Sealed metal bellows sensor • Brass or phosphor bronze wetted material • Compact size • Easy external adjustment • Optional adjustable deadband switch • UL recognized for the US and Canada; CE compliant...

specifications Storage temperature Ambient temperature limits Set point repeats after 15 G, 10 millisecond duration Set point repeats after 2.5 G, 5-500 CPS Enclosure classification ± 1% of full scale range Switch output One SPDT; switch may be wired “normally open” or “normally closed” Electrical rating 15 A 125/250 VAC resistive. Electrical switches have limited DC capabilities. Consult UE for additional information. Skeleton construction Electrical connection Direct to switch terminals Pressure connection Mounting Models 218-230: 1/4” NPT (female); Models 256-274: 1/8” NPT (male) Via NPT...

MODEL CHART Model Adjustable Set Point Range Deadband * Proof Pressure psi (unless noted) bar psi (unless noted) bar (unless noted) psi bar Phosphor bronze bellows with brass 1/8" NPT (male) pressure connection Phosphor bronze bellows with brass 1/4" NPT (female) pressure connection * Proof Pressure: The maximum pressure to which a pressure sensor may be occasionally subjected, which causes no permanent damage. The unit may require calibration (e.g. start-up, testing).

how to order Building a part number Select a Type Refer to the “Type” section below. Refer to the “Model Charts” Determine model based on adjustable range, deadband and proof pressure. Refer to the “Options” section Determine type number based on switch output, enclosure, adjustment and reference. Fill in the type portion of your part number with the corresponding number. Fill in the model portion of your part number with the corresponding number. Determine option number based on switch output, optional materials or other product enhancements. Fill in the option portion of your part number...

dimensional drawings Dimensional drawings for all models may be found at www.ueonline.com

RECOMMENDED PRACTICES AND WARNINGS United Electric Controls Company recommends careful consideration of the following factors when specifying and installing UE pressure and temperature units. Before installing a unit, the Installation and Maintenance instructions provided with unit must be read and understood. • To avoid damaging unit, proof pressure and maximum temperature limits stated in literature and on nameplates must never be exceeded, even by surges in the system. Operation of the unit up to maximum pressure or temperature is acceptable on a limited basis (e.g., start-up, testing)...