Honeywell SC-UCNN11 51307573-176 Redundant RTU2020 Controller

Overview

The Honeywell SC-UCNN11 (Part Number 51307573-176) is a high-reliability redundant RTU2020 controller. It is purpose-built for remote automation, real-time diagnostics, and seamless integration into distributed control systems. Its rugged IP66-rated enclosure and wide I/O range make it ideal for oil & gas, utility, and infrastructure environments. Moreover, its advanced protocol support ensures flexible and secure communications across industrial networks.

Technical Specifications

General Information

• Model Number: SC-UCNN11

• Part Number: 51307573-176

• Controller Type: Redundant RTU2020

Processing and Memory

• Processor: 400 MHz ARM Cortex-A8

• RAM: 256 MB

• Flash Memory: 512 MB

Power Specifications

• Input Voltage: 10–36 VDC (typical 24 VDC ±20%)

• Maximum Power Consumption: 20 W

Input/Output (I/O)

• Digital Inputs (DI): 16 channels, 24 VDC

• Analog Inputs (AI): 8 channels, 16-bit resolution (4–20 mA or 0–10 VDC)

• Digital Outputs (DO): 8 channels, 24 VDC, 0.5 A max

• Analog Outputs (AO): 4 channels, 12-bit resolution (4–20 mA)

Communication Interfaces

• Ethernet Ports: 2 × 10/100 Mbps

• Serial Ports: 3 × RS-232/RS-485

• Supported Protocols: Modbus RTU/TCP, DNP3, IEC 61850

Environmental Ratings

• Operating Temperature: –40°C to +75°C

• Storage Temperature: –40°C to +85°C

• Humidity: 5% to 95% RH (non-condensing)

• Enclosure Protection: IP66

Protection and Reliability

• Surge Protection: 4 kV (serial), 1.5 kV (Ethernet)

• Real-Time Clock: Battery-backed, 5 years at 25°C

• Vibration Resistance: 5 g (10–500 Hz)

• Shock Resistance: 30 g for 11 ms

Mechanical

• Dimensions: 17.8 cm × 7.8 cm × 10 cm

• Weight: 0.72 kg