PBx-11 Power Block
Model: PBx-11
PBx-11 Power Block
Model: PBx-11
Designed to meet the needs of your ventilation and control strategy
The PBx-11 Power Block is an 11-stage control 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.
Control virtually anything
The PBx-11 has 2 variable AC stages, 2 variable DC stages (0 to 10 V signal), and 9 relays. The DC stages track the AC stages, meaning they follow the same settings.
- AC variable stages for controlling variable speed fans.
- DC variable stages for controlling variable frequency drives.
- Relay stages for single-stage heating or cooling, timed events for lighting, or duty cycles for misting.
- 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 sensor; 30 feet, extendable to 500 feet
- NEMA 4X enclosure (Corrosion-resistant, water-resistant, and fire-retardant)
- CSA approval
- Limited warranty
The DC signal outputs on the PBx-11 are dependent on the AC stages, meaning they follow the same settings. If you need a control that has independent AC and DC stages, the PBx-10 Power Block offers independent stages.
- 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
FanDRIVE (1x14 FLA)
FanDRIVEs expand the capacity of your control system by taking the 0 to 10 VDC signal from the control and adjusting fan speed.
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FanDRIVE (2x7 FLA)
FanDRIVEs expand the capacity of your control system by taking the 0 to 10 VDC signal from the control and adjusting fan speed.
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Manual Override Box
The Manual Override Box increases the load handling capability of your control's relays and provides an external disconnect.
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Temperature Sensors
Additional temperature sensors allow you to use 4-zone temperature averaging. Probes are available several lengths and can be extended up to 500 feet using extension cable.
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Phason Rain Sensor
The Phason Rain Sensor detects rainfall and allows you to automatically close the curtain when it is raining.
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PBx-11 Firmware updater
The PBx-11 Updater allows you to upgrade the firmware of PBx-11 Power Blocks. The PBx-11 Updater takes only seconds to use and can upgrade all PBx-11 Power Blocks at your site.
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