Technical specifications - PENN Controls - LIT-1901043 - P77AAA - P77BEA - Electromechanical Pressure Control - P77 Single Pressure Control

P77 Series Controls for High Pressure Applications Catalog Page
Product
Controls > Pressure Controls > P77 Single Pressure Control
Document number
LIT-1901043
Revision date
2024-10-09
Table 1. P77 Series electrical ratings
Volts AC 50/60 Hz UL607301
24 120 208 240
– 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
Table 2. 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 IP54: cast aluminum
Dimensions (H x W x D) Enclosure: 88 x 80 x 53 mm (3.48 x 3.15 x 2.09 in.)
Approximate shipping weight Individual pack: 0.5 kg (1.1 lbs)

Bulk pack (in multiples of 35 controls): 19 kg (41.88 lbs)
Compliance cULus Listed; UL 60730, File SA516
Table 3. P77 for high 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 33 bar (479 psi)
Cover screw torque requirements instruction Tighten enclosure screws to: 1.1–1.4 N·m (10–12 in·lb)
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.