null Skip to main content
Prolon PL-PN2-1B-4M : Pre-Wired Two Controller Panel with NC2000 Network Controller (No HMI) and C1050 Zoning Rooftop Controller, Isolation Relays, NEMA 1 Enclosure, UL Listed

Prolon PL-PN2-1B-4M : Pre-Wired Two Controller Panel with NC2000 Network Controller (No HMI) and C1050 Zoning Rooftop Controller, Isolation Relays, NEMA 1 Enclosure, UL Listed

Prolon

Your Price:  $3,277.09
(No reviews yet) Write a Review
SKU:
PL-PN2-1B-4M
Condition:
New
Availability:
Ships in 2-4 Days
Adding to cart… The item has been added

Controller 1

NC2000

Controller 2

C1050 RTU

Supply

24 VAC, Class 2

Relays

17A @ 277 VAC

Protocol

Modbus RTU / TCP/IP

Panel

NEMA 1, UL listed

Overview

The Prolon PL-PN2-1B-4M is a pre-wired, UL listed NEMA 1 two controller panel built with a Prolon NC2000 Network Controller (No HMI) and a Prolon C1050 Zoning Rooftop 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. The C1050 Zoning Rooftop Controller operates rooftops or other mechanical HVAC systems, and acts as a master when used on a network with other Prolon zone controllers. 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-RTU Controller datasheet REV 7.3.0 / PL-DATA-C1050RTU-C/F-EN; Prolon C1050 Rooftop Controller Hardware Guide (RTU and RTUS) REV 7.3.3; 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
  • Zoned rooftop units with Prolon zone controllers
  • 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

NC2000 network controller

The NC2000 connects the Prolon system to the internet over Modbus TCP/IP, with schedules, email alerts and trend logs.

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: Zoning master

Acts as the master on a network of Prolon zone controllers, with zone weighting and network demand strategies.

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, no HMI + Prolon C1050, Zoning Rooftop 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
DisplayNo HMI display
Power5 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)
InputsOutdoor: thermistor 10K; Return: thermistor 10K; Supply: thermistor 10K; External clock or Proof of fan: dry contact
Digital Outputs4 triac outputs, 10-30 VAC source or sink, 300 mA max (resettable fuse)
Analog Outputs1 output 0-10 VDC / 2-10 VDC / 0-5 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)
Zoning Rooftop Controller Program
ProgramZoning Rooftop Controller
ApplicationOperates rooftops or other mechanical HVAC systems, and acts as a master when used on a network with other Prolon zone controllers
Program InputsOutdoor, return and supply: 10K thermistor; external clock or proof of fan: dry contact
Program Outputs4 triac outputs, all set to SOURCE mode because they share a single source supply (the equipment transformer); analog output: 1 output 0-10 VDC / 2-10 VDC / 0-5 VDC

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-RTU Controller datasheet (REV 7.3.0 / PL-DATA-C1050RTU-C/F-EN)
PDFProlon C1050 Rooftop Controller Hardware Guide (RTU and RTUS) (REV 7.3.3)
PDFProlon Rooftop Controller Focus Guide (REV 7.6.0)
PDFProlon C1050 Rooftop Modbus Configuration Properties (Ver 7.5.0)
PDFProlon C1050 Series Quick Start Guide (REV 2.0 / PL-QCK-C1050-EN)

Frequently Asked Questions

What is the Prolon PL-PN2-1B-4M?

A pre-wired two controller panel built with a Prolon NC2000 Network Controller (No HMI) and a Prolon C1050 Zoning Rooftop Controller, in a UL listed NEMA 1 enclosure with 17A isolation relays on all digital outputs.

What does the C1050 zoning rooftop program control?

It operates rooftops or other mechanical HVAC systems, and acts as a master when used on a network with other Prolon zone controllers. Strategies include unoccupied mode settings, morning warm-up and supply air pre-heating and zone weight and network demand control strategy.

What power does the panel require?

24 VAC ±10%, 50/60 Hz, Class 2; the NC2000 without HMI draws 5 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-PN2-1B-4M 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 are the C1050 digital outputs wired?

On the C1050 rooftop program, all triac outputs are set to SOURCE mode because they share a single source supply, the equipment transformer.

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:
No Display
Controller Type:
Network Controller
Controller Type:
Rooftop
Communication:
Modbus RTU (RS485)
Communication:
Modbus TCP/IP
!