Thermon TraceNet TCM 18 User Manual
Page 8
Current ratings in nonhazardous (ordinary) location based on TraceNet TC Series
panels for up to 72 circuits are as follows
1
:
Maximum Panel Exterior
Ambient (
◦
C)
For: 1 - 36 Circuits
For: 37 - 72 Circuits
Maximum Allowable Average Amps per Relay
(Calculated for each side of enclosure)
2
20
27.0
22.7
25
25.8
21.6
30
24.7
20.4
35
23.5
19.2
40
22.2
18.0
45
21.0
16.8
50
19.7
15.6
55
18.3
14.3
Note 1: Contact the manufacturer for the maximum allowable amps per relay for custom enclosure sizes.
Note 2: Based on factory panel wiring rated for 105
◦
C.
The TCM18 has the following operating specifications:
Rated supply voltage
100 to 240 Vac, 50/60 Hz
Display
4–7/8” (124 mm) x 1–3/4” (44 mm) LCD STN with LED
backlight
Touch pad
Membrane switch stainless steel dome tactile keys
Control capacity
Eighteen heat tracing circuits
Temperature inputs
Up to two 3 wire 100 Ohm Platinum RTD’s 32
◦
F (0
◦
C) per
heat trace circuit
Temperature control
range
-200
◦
F to 1112
◦
F (-129
◦
C to 600
◦
C)
Communication
Dual RS485 ports
Communication
protocol
ModBus ASCII or RTU
Communication rate
9600 to 57600 Baud
PN 50316_0514
4