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Prolon PL-PN2-1A-4Q : Pre-Wired Two Controller Panel with NC2000 Network Controller with 10-Inch Touchscreen HMI and C1050 Water Loop Controller, Isolation Relays, NEMA 1 Enclosure, UL Listed

Prolon PL-PN2-1A-4Q : Pre-Wired Two Controller Panel with NC2000 Network Controller with 10-Inch Touchscreen HMI and C1050 Water Loop Controller, Isolation Relays, NEMA 1 Enclosure, UL Listed

Prolon

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PL-PN2-1A-4Q
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Controller 1

NC2000 HMI

Controller 2

C1050 Water Loop

Supply

24 VAC, Class 2

Relays

17A @ 277 VAC

Protocol

Modbus RTU / TCP/IP

Panel

NEMA 1, UL listed

Overview

The Prolon PL-PN2-1A-4Q is a pre-wired, UL listed NEMA 1 two controller panel built with a Prolon NC2000 Network Controller with 10-Inch Touchscreen HMI and a Prolon C1050 Water Loop Controller. Isolation relays rated 17A @ 277 VAC on all digital outputs, overcurrent fuse protection and clearly marked terminal blocks come factory wired.

The NC2000 connects the Prolon network to the internet, manages the occupancy schedule and outside temperature, sends email alerts and records trend logs, with a built-in 10-inch touchscreen for local setup. The C1050 Water Loop Controller controls a water loop system comprised of a boiler and a water tower with an internal pump. The panel contains 2 Modbus RTU (RS485) nodes and runs stand-alone or on a Prolon network of up to 127 nodes.

Specifications per Prolon Pre-Wired Two Controller Panel datasheet PL-DATA-PANEL2CON-EN-V1; Prolon PL-C1050-WLC Controller datasheet REV 7.3.1 / PL-DATA-C1050WLC-C/F-EN; Prolon C1050 Water Loop Controller Hardware Guide REV 7.3.2; Prolon Two Controller Panel product page (proloncontrols.com) retrieved 2026-09-24; Prolon NC2000 Network Controller datasheet REV 7.3.0 / PL-DATA-NC2000-C/F-EN. Reviewed September 2026.

Best For

  • Remote access to the Prolon network over the internet with a local touchscreen
  • Water loops served by a boiler and a water tower
  • Mechanical rooms where two controllers share one UL listed enclosure

Warranty

For warranty coverage on this Prolon panel, contact ZOT Supply at sales@zotsupply.com or 855-825-2811.

Key Features

10-inch touchscreen HMI

Built-in 10-inch touchscreen display on the panel door for local setup and monitoring of the Prolon system.

17A isolation relays

Every digital output is isolated by a relay rated 17A @ 277 VAC built into the panel (C1050 = 4, M2000 = 5), and the controller outputs are protected by resettable fuses.

Fused, pre-wired NEMA 1 panel

Clearly marked terminal blocks, wire management channels and a disconnect-style Slo-Blo fuse (3A @ 250 VAC) with a replacement fuse included. The wiring diagram is in the door, and all inputs and outputs are tested in the factory.

C1050: Heat and reject on one loop

Output 1 drives the boiler, and outputs 2 to 5 open the tower damper, run the spray pump and stage the cooling tower.

Free Prolon Focus software

Remote monitoring and configuration with free Prolon Focus software, stand-alone or networked up to 127 nodes.

Authorized Distributor

ZOT Supply is an authorized distributor of Prolon products.

Technical Specifications

Panel
ControllersProlon NC2000 network controller with 10-inch touchscreen (HMI) + Prolon C1050, Water Loop Controller program
Supply24 VAC ±10%, 50/60 Hz, Class 2
Overcurrent ProtectionDisconnect-style Slo-Blo fuse (3A @ 250 VAC), with additional replacement fuse included
EnclosureNEMA 1
Panel Dimensions16.25 in. W x 20.25 in. H x 6.25 in. D (413 mm W x 514 mm H x 159 mm D)
Weight38 lbs (17.25 kg)
Isolation Relays17A @ 277 VAC on all digital outputs (C1050 = 4, M2000 = 5)
Network NodesStand-alone or networked (up to 127 nodes); this panel contains 2 nodes
Environment-4 to 122 °F (-20 to 50 °C), non-condensing
Panel CertificationComplete panel is UL certified
CertificationUL916 Energy Management Equipment, CAN/CSA-C22.2, RoHS, FCC part 15: 2012 class B
NC2000 Network Controller
DisplayBuilt-in 10-inch touchscreen display (HMI)
Power30 VA
CommunicationModbus TCP/IP (Static IP address or DHCP) / USB / Ethernet
RS485 PortsModbus RTU (RS485): 1 input port and 1 output port, up to 127 nodes
ConnectionRemovable screw-type terminal blocks (max 16 AWG) for power and RS485, modular RJ45 jacks for Ethernet/RS485, USB female type A for local PC connection
SD CardStandard size only, SDSC or SDHC, FAT16 or FAT32
SchedulingInternal clock with up to 16 configurable weekly schedules and annual calendars
Clock BackupSuper-capacitor 0.5F, keeps precise time for 10 days
MicroprocessorASIX AX11015, 8 bits, 25 MHz, 512 KB FLASH memory
C1050 Controller Hardware
Power2 VA (consumption), 32 VA (input)
InputsSupply water temp: thermistor 10K; Return water temp: thermistor 10K; Auxiliary temp: thermistor 10K; Auxiliary digital input: dry contact
Digital Outputs4 triac outputs, 10-30 VAC source or dry contact, 300 mA max (resettable fuse)
Analog Outputs1 output 0-10 VDC, 40 mA max (resettable fuse)
Indication Lights (LED)State of each output / Communication / Power / State of microprocessor
CasingMolded ABS, UL94-HB
CommunicationModbus RTU (RS485), up to 127 nodes
Baud Rates9600, 19200, 38400, 57600, 76800, 115200
ConnectionRemovable screw-type terminal blocks (max 16 AWG)
Water Loop Controller Program
ProgramWater Loop Controller
ApplicationControls a water loop system comprised of a boiler and a water tower with an internal pump
Program InputsSupply water, return water and auxiliary temp: 10K thermistor; auxiliary digital input: dry contact
Program Outputs4 triac outputs, each SOURCE (active) or SINK (passive, isolated dry contact) by on-board switch, 300 mA max (resettable fuse); output 1 heating (boiler); outputs 2 to 5 cooling actions (tower damper or bypass valve, spray pump, tower stage 1, tower stage 2); analog output 0-10 VDC, 40 mA max (resettable fuse)

Documentation

PDFProlon Pre-Wired Two Controller Panel datasheet (PL-DATA-PANEL2CON-EN-V1)
PDFProlon Pre-Built Control Panels ordering guide (PL-MKT-PANEL-EN-V4)
PDFProlon NC2000 Network Controller datasheet (REV 7.3.0 / PL-DATA-NC2000-C/F-EN)
PDFProlon PL-C1050-WLC Controller datasheet (REV 7.3.1 / PL-DATA-C1050WLC-C/F-EN)
PDFProlon C1050 Water Loop Controller Hardware Guide (REV 7.3.2)
PDFProlon Water Loop Controller Modbus Configuration Properties (Ver 7.4.0)
PDFProlon C1050 Series Quick Start Guide (REV 2.0 / PL-QCK-C1050-EN)

Frequently Asked Questions

What is the Prolon PL-PN2-1A-4Q?

A pre-wired two controller panel built with a Prolon NC2000 Network Controller with 10-Inch Touchscreen HMI and a Prolon C1050 Water Loop Controller, in a UL listed NEMA 1 enclosure with 17A isolation relays on all digital outputs.

What does the C1050 water loop program control?

It controls a water loop system comprised of a boiler and a water tower with an internal pump. Strategies include bypass valve control, cooling tower damper control and spray pump and cooling tower staging.

What power does the panel require?

24 VAC ±10%, 50/60 Hz, Class 2; the NC2000 with HMI draws 30 VA and the C1050 draws 2 VA (consumption), 32 VA (input).

Are the outputs isolated and protected?

Yes. Every digital output is isolated by a relay rated 17A @ 277 VAC built into the panel, and the panel has a disconnect-style Slo-Blo fuse (3A @ 250 VAC) with a replacement fuse included.

What size is the PL-PN2-1A-4Q panel?

16.25 in. W x 20.25 in. H x 6.25 in. D (413 mm W x 514 mm H x 159 mm D), and it weighs 38 lbs (17.25 kg).

How does the NC2000 connect to a network?

Modbus TCP/IP with a static IP address or DHCP, USB and Ethernet, plus Modbus RTU (RS485) with 1 input port and 1 output port for up to 127 nodes.

Panel Type:
Master Controller Panel
Display:
Touchscreen Display
Controller Type:
Network Controller
Controller Type:
Water Loop
Communication:
Modbus RTU (RS485)
Communication:
Modbus TCP/IP
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