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Prolon PL-PN2-1B-7D : Pre-Wired Two Controller Panel with NC2000 Network Controller (No HMI) and M2000 Chiller Controller, Isolation Relays, NEMA 1 Enclosure, UL Listed

Prolon PL-PN2-1B-7D : Pre-Wired Two Controller Panel with NC2000 Network Controller (No HMI) and M2000 Chiller Controller, Isolation Relays, NEMA 1 Enclosure, UL Listed

Prolon

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PL-PN2-1B-7D
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Controller 1

NC2000

Controller 2

M2000 Chiller

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-7D is a pre-wired, UL listed NEMA 1 two controller panel built with a Prolon NC2000 Network Controller (No HMI) and a Prolon M2000 Chiller 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 M2000 Chiller Controller operates air cooled and water cooled chillers with up to four stages, as well as the associated system pumps. 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-M2000-CHL Controller datasheet REV 7.3.4 / PL-DATA-M2000CHL-C/F-EN; Prolon M2000 Chiller Controller Hardware Guide REV 7.3.4; 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
  • Air cooled or water cooled chillers up to 4 stages
  • 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.

M2000: Up to 4 chiller stages

Regulates chilled water supply temperature on air cooled and water cooled chillers with up to four stages, with condenser water and water pressure inputs.

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 M2000, Chiller 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
M2000 Controller Hardware
Power5 VA (consumption), 40 VA (input)
Inputs9 analog inputs (outside temp / supply water temp / return water temp / dry contacts for proof of pumps, entering condenser water temp, leaving condenser water temp, water pressure and alarm). Input signals (thermistor / dry contact / 4-20mA / 0-5 VDC) individually configurable for each input
Digital Outputs5 triac outputs, 10-30 VAC source, 300 mA max (resettable fuse)
Analog Outputs3 x 0-10 VDC outputs, 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 (16 AWG max) and RJ45 modular jacks
Chiller Controller Program
ProgramChiller Controller
ApplicationOperates air cooled and water cooled chillers with up to four stages, as well as the associated system pumps
Program Inputs9 analog inputs: outside temp, supply water temp, return water temp, proof of pumps (dry contact), entering condenser water temp, leaving condenser water temp, water pressure and alarm
Program Outputs5 triac outputs; 3 x 0-10 VDC analog outputs, 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-M2000-CHL Controller datasheet (REV 7.3.4 / PL-DATA-M2000CHL-C/F-EN)
PDFProlon M2000 Chiller Controller Hardware Guide (REV 7.3.4)
PDFProlon Chiller Controller Focus Guide (REV 7.5.0)
PDFProlon Chiller Modbus Configuration Properties (Ver 7.5.0)
PDFProlon M2000 Series Quick Start Guide (REV 7.0 / PL-QCK-M2000-EN)

Frequently Asked Questions

What is the Prolon PL-PN2-1B-7D?

A pre-wired two controller panel built with a Prolon NC2000 Network Controller (No HMI) and a Prolon M2000 Chiller Controller, in a UL listed NEMA 1 enclosure with 17A isolation relays on all digital outputs.

What does the M2000 chiller program control?

It operates air cooled and water cooled chillers with up to four stages, as well as the associated system pumps. Strategies include outside temperature reset scales, lead-lag sequences and pump exercise intervals.

What power does the panel require?

24 VAC ±10%, 50/60 Hz, Class 2; the NC2000 without HMI draws 5 VA and the M2000 draws 5 VA (consumption), 40 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-7D 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:
No Display
Controller Type:
Network Controller
Controller Type:
Chiller
Communication:
Modbus RTU (RS485)
Communication:
Modbus TCP/IP
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