Nelson™ PN CM108XN4VDC350

CM1-08X-N4-V-DC

ADD TO WORKSPACE

Features

The cable monitoring system is mounted in a NEMA 4 or 4X enclosure that can be wall or rack mounted. The unit is normally located in close proximity to the breaker panel feeding the heat tracing system. The system is available in configurations up to 48
Scanner board: The system is controlled by a microprocessor-based scanner that systematically interrogates all circuit parameters and compares actual vs programmed data. The scanner board is environmentally hardened to allow the system to be installed in
Display unit: The display unit is visible through a protective Plexiglas panel in the door of the assembly. All indicators are LED to provide visibility in all light conditions. The unit displays the circuit being monitored on 0.5 inch read outs and heat
Sensor cards: The sensor cards monitor the electrical parameters of each heating circuit. Each sensor card monitors up to 4 circuits for voltage, current and continuity. An adjustable potentiometer allows the low current alarm level to be set for each ci
Continuity monitoring device: For continuity monitoring, parallel types of heating cables require the attachment of a bus monitor device at the end of each heater circuit. This device is totally passive and generates no electrical noise or signals that m

Specifications

Certifications and Compliances: ETL Listed to UL and CSA Standards: Hazardous (Classified) Locations

ETL: Class I, Division 2, Groups B, C, D; Temperature Code: T3C (+160 °C), T3A (+180 °C)

Enclosures: NEMA Type 4, 4X

Heat Trace Load: 30 Amps @ 300 Vac maximum

Ambient Temperature: -40 °C to +55 °C (-40 °F to +130 °F)

Display: Single line numeric LED circuit indication. LED bar indicators for alarm status

Control Power Input: 120 Vac

Voltage Range: 85 to 300 Vac

Current Range: 0.05 to 30.0 Amp

Continuity: Requires additional CMD device for each monitored circuit

Alarm Contacts: Common for all alarms.

Temperature Control Input: Requires dry contact from control device(s) or -V control input option for monitoring of temperature control device

Communications: RS-485, Modbus™ RTU protocol

Documents & Drawings