HVAC PENN COMMERCIAL
CONTROL
REFRIGERATION
PRODUCTS
PRESSURE CONTROLS P77 ADJUSTABLE PRESSURE SWITCH
ORDERING INFORMATION
FOR AMMONIA AND NON-CORROSIVE REFRIGERANTS ( PRESSURE LIMITER , PRESSURE CUT-OUT , SAFETY PRESSURE CUT-OUT , INCLUDING LOCKPLATE ASSY )
FAMILY CODES
P77AAW
Ind . pack .
STYLE 15 Bulkpack
RANGE ( bar )
DIFF . ( bar )
MAX BELLOWS PRESSURE
APPROVED ACCORDING TO PED 2014 / 68 / EU CAT . IV
-9700 --- -0.5 to 7 0.6 to 3 14 ---
-9750 --- 3 to 30 3.5 to 12 33 P77BEB -9750 --- 3 to 30 Man . res . 3 33 P77BES -9750 --- 3 to 30 Man . res . 3 33
•
FOR HAZARDOUS LOCATION APPLICATION AND NON-CORROSIVE REFRIGERANTS ( PRESSURE LIMITER , INCLUDING LOCKPLATE ASSY ) – ATEX CERTIFIED
FAMILY CODES
Ind . pack .
STYLE 28 Bulkpack
RANGE ( bar )
DIFF . ( bar )
PRESSURE CONNECTION
MAX BELLOWS PRESSURE
APPROVED ACCORDING TO PED 2014 / 68 / EU CAT . IV
P77XAAW -18000C -18000D -0. 5 to 7 0 . 6 to 3 6 mm Ø
22 --- -18500C -18500D 3 to 30 3.5 to 12 copper tube 33 •
Notes 1 Resetable at 0.5 bar above cut-out point 2 Resetable at 3 bar below cut-out point 3 Resetable at 3.5 bar below cut-out point 4 Resetable at 5 bar below cut-out point
100 kPa = 1 bar ≈ 14.5 psi
43 - REFRIGERATION European Products Catalogue 2021