The PBx-11 is designed to control ventilation equipment for a single room. Power Blocks work with the Select Ventilation module of OMNI Select to control equipment according to your programmed settings.

The 11-stage control has two variable AC stages for controlling fans or heaters, two variable 0 to 10 VDC stages for controlling variable frequency drives, and nine relays for controlling equipment such as actuators, curtain machines, single-speed fans, heaters, and lights.

Features:

• Central monitoring and control using Select Ventilation software
• Programmable temperature set point, range: 14 to 122°F (-10 to 50°C)
• Two variable AC stages
• Two variable 0 to 10 VDC signal outputs
• Nine general-purpose relays
• One alarm relay (for external alarm system or siren)
• Load Management – coordinates the startup sequence of PBx Power Blocks and relays
• Optional four-probe temperature averaging
• Four-digit LED display and status LEDs
• Temperature probe; 30 feet, extendable to 500 feet
• NEMA 4X enclosure (corrosion resistant, water resistant, and fire retardant)
• CSA approval
• Limited warranty (2 years)

Electrical Information:

• Incoming Power: 120/230 VAC, 50/60 Hz
• Variable Stages:
  • 10 A at 120/230 VAC, general-purpose (resistive)
  • 7 FLA at 120/230 VAC, PSC motor
  • 1/2 HP at 120 VAC, 1 HP at 230 VAC, PSC motor
• Variable Stage Fuse: 15 A, 250 VAC ABC-type ceramic
• Variable DC Stages: 0 to 10 VDC, 2K Ω load
• Relay Stages:
  • 10 A at 120/230 VAC, general-purpose (resistive)
  • 1/3 HP at 120 VAC, 1/2 HP 230 VAC
  • 360 W tungsten at 120 VAC
• Alarm Relay:
  • 0.4 A at 125 VAC, 2.0 A at 30 VDC, resistive load
  • 0.2 A at 125 VAC, 1.0 A at 30 VDC, inductive load