Chromalox IntelliTrace ITC 1 - Equipment Electrical Ratings; Voltage, Current, and Ambient Ratings; Field Wiring Considerations; Recommended Wire Gauge and Power Ratings

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Equipment Ratings
Voltage Rating: ........................ 100-277 VAC, 50/60 Hz
Current Rating: ..............................40 amps per Circuit
Number of Circuits .............................................. 1 or 2
Ambient Temperature Rating: .............. -40°F to +104°F
(-40°C to +40°C)
Altitude Rating: ......................Fully rated up to 6,500 Ft
(2,000 Meters)
VA consumption rating on electronics:............... 6.0 VA
The electronics are protected by a 0.5 Amp 350 VAC
2AG fuse.
Maximum RTD output ...............1.25 volts, 7 milliamps
Pollution Rating .............................................. Degree 2
Over Voltage .............................................. Category III*
* Overvoltage note: Category III is maintained only when a UL
Listed VZCA type 2 surge protector is employed between the
power source and the ITC unit. The surge protector must be
rated at 277 Vac (min) with a maximum surge protection rating of
2500 Vpk. Otherwise the ITC is rated at overvoltage Category II.
Field Wiring
Considerations
Torque values for line/load wiring
terminals: .................................................. 10-13 in/lbs.
(1.1-1.5 N-m)
Torque values for RTD 1 & 2 wiring
terminals: ...................................................... 6-8 in/lbs.
(.67-.90 N-m)
Torque values for shield grounding/alarm wiring
terminals: ...................................................... 3-4 in/lbs.
(.33-.45 N-m)
Terminal Block Gauge Range:
Line & Load .................................6-18 AWG, Copper
Alarm & Sensor ........................................12-24 AWG
Power Wire Rating
Max Load Min Breaker Size (AWG, 90˚C)
40A 50A 8
30A 40A 10
20A 25A 12
15A 20A 14
Modbus Wiring
Considerations
Environmental influences such as EMI/RFI can com-
promise the communication signal. Properly designed
cables will minimize their influences.
RS485 Max Length ............................. 2,500 ft. (800 m)
RS485 Wire Specification ......... T1/E1/DSL compatible
Example Vendor .................. L-Com (www.L-com.com)
Vendor Item ....................................................TSC9928