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Have a live application? Use our United Electric Product Overview and Quick Selection Guide to configure the model and options for your requirement:

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ABLE are United Electric’s Exclusive Representative for Sales and Service in the UK and Ireland and can assist you and your customers in the following areas:

  • Application expertise
  • Our factory trained engineers offer after sales support, service and maintenance (contracts available)
  • Offer advanced United Electric pressure / temperature switch product training, either in-person or via video call.

Further to the above, ABLE can offer custom solutions based on your individual requirements. Email us now at [email protected]

United Electric J40 Series Pressure Switch

ABLE Instruments are United Electric’s Exclusive Representative for Sales and Service in the UK and Ireland, including the UE J40 Series, a skeleton (open frame) pressure electromechanical switch with metal bellows for OEM applications. Available with either 1/4″ NPTF or 1/8″ NPTM brass pressure connections.

The United Electric J40 Series Pressure Switch offers OEMs reliable switch performance for alarm and shutdown applications. It has a sealed, metal bellows sensor that ensures leak-free construction for applications where elastomers are unacceptable. The J40 is simple to install and operate and complies with North American approvals as well as CE Low Voltage (LVD) and Pressure Equipment Directives (PED) for Europe.


  • Sealed metal bellows sensor
  • Single 15-Amp SPDT switch output
  • Brass or phosphor bronze wetted material for applications where elastomers are not recommended
  • Compact open frame design for applications where space is limited
  • Easy external adjustment for calibration & maintenance
  • Optional adjustable deadband switch
  • Setpoint repeatability: ±1% full scale range
  • UL recognized for the US and Canada; CE compliant to LVD & PED

Have a particular application / project in mind? We’d welcome a call on +44 (0) 1189 169 420, or email us now at [email protected]

Typical applications that utilize the J40 Series include sterilisers, plasma cutting and anaesthesia equipment, and power generation equipment.

J40 Series Specifications:

Ambient Temperature Limits
-40 to 160°F (-40 to 71°C)
Set point repeats after 15 G, 10 millisecond duration
Set point repeats after 2.5 G, 5-500 CPS
Enclosure Classification
Not applicable
Set Point Repeatability
± 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 ABLE for additional information.
Skeleton construction
Approx. 4 oz
Electrical Connection
Direct to switch terminals
Pressure Connection
Models 218-230: 1/4” NPT (female)
Models 256-274: 1/8” NPT (male)
Via NPT pressure connection
United States / Canada
UL Recognised, cUL Recognised
UL 508; CSA C22.2 No. 14, file #E42272
Low Voltage Directive (LVD) (2006/95/EC)
UEC Compliant to LVD
Products rated lower than 50 VAC and 75 VDC are outside the scope of the LVD
The Low Voltage Directive does not apply to products for use in hazardous locations
Pressure Equipment Directive (PED) (97/23/EC)
Compliant to PED
Products rated below 7.5 psi are outside of the scope of the PED
Purchase Product

Price: POA Contact 247ABLE