Isen differential pressure switch

Used for pressure protection. Patented design improved reliability. Compact design and full range of products.

 Introduction  

The single pressure controls are designed to protect compressor in refrigeration and air condition system and keep them from over-low suction pressure or over-high discharge pressure, all model are suitable for refrigeration such as R22,R134A,R404A and other non corrosive refrigerant, and also used for water pump, fire fighting controls, hydraulic, vacuum equipment

These pressure controls are use in a variety for applications involving refrigeration high or low pressure. All models are provided with alarm contacts. Standard models have phosphor bronze bellows and brass pressure connections. Models for using with ammonia are provided with stainless bellows and connectors.  The IP 54 classification means that these pressure controls are suitable for indoor and outdoor applications.  

For manual rest lockout option provides “trip free” low pressure lockout that cannot be overridden or rest until pressure returns to a specified level, this setting limited knob. The release data equals high pressure minus the differential  

Electric ratings:       380VAC/16(10)A

Pilot Duty:           220VDC/12W

Utilization category:    AC-15

Pressure range:        0-32bar

Proof pressure:

     Low pressure:    22bar  

     High pressure:   42bar  

Environment Temp.:   -40°C to 70°C  

Fluid Temp.:         -40°C to 135°C  

Ingress protection:     IP54          

Life cycle:           over 100,000 tim

1,Why use ISEN Pressure switch

 

l  Patent design (Supper Disc Assembly) improved stability of the pressure switch’s performance, especially at extreme working condition. Excursion of operation pressure is up to 65% lower than normal design.

l  Special E-welding process improved the contact and strength of the lead wire joint.

l  CE, CCC and CRCC certified product.

 

 

 

 

PS1  Typical Outline Drawing

Isen differential pressure switch