Controller 1
NC2000
Controller 2
M2000 MUA Adv
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-7L is a pre-wired, UL508A certified NEMA 1 two controller panel built with a Prolon NC2000 Network Controller (No HMI) and a Prolon M2000 Make-Up Air (Advanced) 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 Air Make Up Controller operates a variety of make-up air units and systems, with operator hardware mounted on the panel door. 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-MUA Controller datasheet REV 7.3.0 / PL-DATA-M2000MUA-C/F-EN; Prolon M2000 Air Make Up Controller Hardware Guide REV 7.3.0; Prolon Two Controller Panel product page (proloncontrols.com) retrieved 2026-09-24; Prolon Air Make-Up Controller Panels 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
- Make-up air units that need an external Hand/Off/Auto switch and lockout reset
- 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: Door-mounted operator hardware
The make-up air panel adds an external Hand/Off/Auto switch, Fan and Alarm lights and a Reset button for easy access.
Free Prolon Focus software
Remote monitoring and configuration with free Prolon Focus software, stand-alone or networked up to 127 nodes.
ZOT Supply is an authorized distributor of Prolon products.
Technical Specifications
| Panel | |
|---|---|
| Controllers | Prolon NC2000 network controller, no HMI + Prolon M2000, Air Make Up Controller program |
| Supply | 24 VAC ±10%, 50/60 Hz, Class 2 |
| Overcurrent Protection | Disconnect-style Slo-Blo fuse (3A @ 250 VAC), with additional replacement fuse included |
| Enclosure | NEMA 1 |
| Panel Dimensions | 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) |
| Weight | 38 lbs (17.25 kg) |
| Isolation Relays | 17A @ 277 VAC on all digital outputs (C1050 = 4, M2000 = 5) |
| Network Nodes | Stand-alone or networked (up to 127 nodes); this panel contains 2 nodes |
| Environment | -4 to 122 °F (-20 to 50 °C), non-condensing |
| Panel Certification | Complete panel is UL508A certified |
| Certification | UL916 Energy Management Equipment, CAN/CSA-C22.2, RoHS, FCC part 15: 2012 class B |
| NC2000 Network Controller | |
| Display | No HMI display |
| Power | 5 VA |
| Communication | Modbus TCP/IP (Static IP address or DHCP) / USB / Ethernet |
| RS485 Ports | Modbus RTU (RS485): 1 input port and 1 output port, up to 127 nodes |
| Connection | Removable 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 Card | Standard size only, SDSC or SDHC, FAT16 or FAT32 |
| Scheduling | Internal clock with up to 16 configurable weekly schedules and annual calendars |
| Clock Backup | Super-capacitor 0.5F, keeps precise time for 10 days |
| Microprocessor | ASIX AX11015, 8 bits, 25 MHz, 512 KB FLASH memory |
| M2000 Controller Hardware | |
| Power | 5 VA (consumption), 40 VA (input) |
| Inputs | 9 configurable analog inputs (zone temp / outside temp / discharge temp, dry contact for proof of exhaust, fan and damper opening, manual overrides, CO2 levels, static pressure). Input signals (thermistor / dry contact / 4-20mA / 0-5 VDC) individually configurable for each input |
| Digital Outputs | 5 triac outputs, 10-30 VAC source, 300 mA max (resettable fuse) |
| Analog Outputs | 3 x 0-10 VDC outputs, 40 mA max (resettable fuse) |
| Indication Lights (LED) | State of each output / Communication / Power / State of microprocessor |
| Casing | Molded ABS, UL94-HB |
| Communication | Modbus RTU (RS485), up to 127 nodes |
| Baud Rates | 9600, 19200, 38400, 57600, 76800, 115200 |
| Connection | Removable screw-type terminal blocks (16 AWG max) and RJ45 modular jacks |
| Air Make Up Controller Program | |
| Program | Air Make Up Controller |
| Application | Operates a variety of make-up air units and systems, with operator hardware mounted on the panel door |
| Program Inputs | 9 configurable analog inputs: zone temp, outside temp, discharge temp, proof of exhaust, fan and damper opening (dry contact), manual overrides, CO2 levels, static pressure (thermistor / dry contact / 4-20mA / 0-5 VDC) |
| Program Outputs | 5 triac outputs; 3 x 0-10 VDC analog outputs, 40 mA max (resettable fuse) |
| Panel Version | MUA Advanced: with additional hardware (selector, LEDs, lockout reset button) |
| Door Hardware | External Hand/Off/Auto switch, Fan and Alarm Lights and Reset button |
Documentation
Frequently Asked Questions
What is the Prolon PL-PN2-1B-7L?
A pre-wired two controller panel built with a Prolon NC2000 Network Controller (No HMI) and a Prolon M2000 Make-Up Air (Advanced) Controller, in a UL listed NEMA 1 enclosure with 17A isolation relays on all digital outputs.
What does the M2000 air make up program control?
It operates a variety of make-up air units and systems, with operator hardware mounted on the panel door. Strategies include outdoor temperature reset, building pressure control, CO2 control and lockout mode and safety limits.
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-7L 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).
What make-up air controls are on the panel?
An external Hand/Off/Auto switch, Fan and Alarm lights and a Reset button for easy access.
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:
- Make-Up Air
- Communication:
- Modbus RTU (RS485)
- Communication:
- Modbus TCP/IP
