Wolseley

PENN Controls Products Catalog

Issue link: https://boomart.uberflip.com/i/1442607

Contents of this Issue

Navigation

Page 153 of 367

Selection chart Table 177: P77 Series Controls for low pressure applications selection chart Model number Individual pack Bulkpack Pressure connection Switch action Range bar (psi) Differential bar (psi) Maximum bellows pressure bar (psi) -13000C -13000D 7/16-20 UNF6 mm (1/4 in.) flare fitting P77AAA -15000C -15000D 914 mm (36 in.) capillary with 6 mm (1/4 in.) flare fitting 0.6 to 3 (9 to 44) -13000C — 7/16-20 UNF6 mm (1/4 in.) flare fitting P77BCA -15000C — 914 mm (36 in.) capillary with 6 mm (1/4 in.) flare fitting SPDT -0.5 to 7 (-7 to 102) Manual reset 1 20 (290) 1 The control cannot be reset until the pressure rises 0.5 bar (7 psi) or greater above the low cut-out point. Technical specifications Table 178: P77 Series electrical ratings UL60730 1 24 120 208 240 Volts AC 50/60 Hz – Primary contact Secondary contact Primary contact Secondary contact Primary contact Secondary contact Horsepower – 1 0.33 1 0.75 1 1 Full Load Amperes – 16 7.2 9.2 7.6 8 8 Locked Rotor Amperes – 96 43.2 55.2 45.6 48 48 Resistive Amperes 16 16 8 10 8 10 8 Pilot Duty VA 125 720 720 720 720 720 720 1 When the primary contact is A–C, the secondary contact is A–B. When the primary contact is A–B, the secondary contact is A–C. Table 179: P77 Series applications Specification Description Product switch action Single-Pole, Double-Throw (SPDT) Pressure connection 7/16-20 UNF for 6 mm (1/4 in. SAE external flare fitting), or 914 mm (36 in.) capillary with 6 mm (1/4 in.) flare fitting Ambient conditions Temperature: -40 to 60ºC (-40 to 140ºF) Humidity: 0 to 95% R.H. non-condensing Enclosure Type 1: cast aluminum Dimensions (H x W x D) Type 1 enclosure: 88 x 80 x 53 mm (3.48 x 3.15 x 2.09 in.) Approximate shipping weight Individual pack: (Type 1 enclosure): 0.5 kg (1.1 lbs) Bulk pack: (Type 1 enclosure in multiples of 35 controls): 19 kg (41.88 lbs) Compliance cULus Listed; UL 60730, File SA516 Table 180: P77 for low pressure applications UL conformity declaration information Specification Description Purpose of control Pressure operating control: Automatic reset controls Pressure cut-out: Manual reset controls Construction of control Electromechanical Number of cycles Automatic: 30,000 Cycles Manual Reset: 6,000 Cycles Method of mounting control Independently-mounted control Type 1 or Type 2 action Automatic: Type 1; Type 1.C (Micro-Interruption) Manual Reset: Type 2 Pollution degree Category 3 Heat and fire resistance category N/A Rated impulse voltage 4,000 V Ball pressure temperature N/A Field wiring rating 90°C (194°F) Maximum overpressure 20 bar (290 psi) Cover screw torque requirements instruction Tighten enclosure screws to: 1.1–1.4 N·m (10–12 in·lb) 154 Refrigeration Products Catalog

Articles in this issue

Archives of this issue

view archives of Wolseley - PENN Controls Products Catalog