
T9EC Thermostat
Line Sensing Adjustable Temperature Hazardous Location
DESCRIPTION
The T9EC thermostat is intended for temperature
control of electric heating cables for temperature
maintenance pipe tracing. The T9EC is suitable for
indoor/outdoor hazardous locations having hostile
environments.
ENCLOSURE
NEMA 4, 7 & 9 Lacquer-coated Cast Aluminum
TEMPERATURE RANGE
Adjustable
25°F to 325°F (-4°C to 163°C)
Calibration Accuracy
3°F (1.7°C)
CAPILLARY
Length Material
10'-0" (3 m) Stainless Steel
Max. Exposure Temp.
420°F (215°C)
ELECTRICAL
SPDT Switch
22 amp Resistive, 125/250/480 VAC
10 – 14 AWG Terminals
"NC" Contact Closes on Falling Temperature
APPROVALS
UL E53121
CL. I/II, Div. 1&2, Grps. B,C,D/E,F,G; Type 4
CSA LR34556
CL. I/II, Div. 1&2, Grps. B,C,D/E,F,G; CL. III;
Type 4
FM 1Z1A0.AE
CL. I/II, Div. 1&2, Grps. B,C,D/E,F,G
4" (102mm)
OUTLINE
4.5" (114mm)
4" (102mm)
4"
7.75"
(197mm)
US T. (800) 537-4732
CAN T. (800) 794-3766
©2011 EasyHeat www.easyheat.com 14025-001 Rev. 3
(102mm)
1.22"
(31mm)
.38" (10mm)
2" (51mm)

2 T9EC Thermostat Line Sensing Adjustable Temperature Hazardous Location
INSTALLATION
MI Trace Sample Installation
Thermostat
Power Supply
Capillary
WIRING
Low Point Drain
MI Cold Section
Pipe
Method for installing TSR,
SRTrace, ZH and FP heater cable
types.
MI Heater Cable
Fiberglass Tape
Sensing Bulb—Install at least
90° away from heater cable.
ANNUAL MAINTENANCE
1 Remove cover.
2 Spray a coat of lubricant and rust preventative such as
CRC Stor & Lube, electrical grade, on thermostat body.
3 Replace cover.
US T. (800) 537-4732
CAN T. (800) 794-3766
©2011 EasyHeat www.easyheat.com 14025-001 Rev. 3