TA4X140 Thermostat, Specification/Application - Emerson Industrial ...
TA4X140 Thermostat, Specification/Application - Emerson Industrial ...
TA4X140 Thermostat, Specification/Application - Emerson Industrial ...
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R<br />
D.C. AMPS<br />
A.C. AMPS<br />
MEDIA TEMPERATURE LIMITS<br />
125V 250V 480V 600V<br />
TEMPERATURE INDICATING AND<br />
F<br />
C<br />
SWITCH NUMBER<br />
ADJUSTABLE RANGE<br />
6V 12V 24V 125V 250V<br />
0<br />
50 F 100<br />
C<br />
TYPE 4<br />
50<br />
TEMP<br />
SW<br />
NELSON HEAT TRACING SYSTEMS SPECIFICATION / APPLICATION<br />
<strong>TA4X140</strong> THERMOSTAT<br />
INSTALLATION<br />
DESCRIPTION<br />
ENCLOSURE<br />
Die Cast Aluminum<br />
CLASSIFICATIONS<br />
NEMA Type 4X IP66<br />
TEMPERATURE RANGE<br />
Range<br />
-9 to 60°C (15 to 140°F)<br />
CAPILLARY<br />
Length Material Max. Bulb Temperature<br />
N/A Stainless Steel 71°C (160°F)<br />
ELECTRICAL DATA<br />
CSA Rating<br />
UL Rating<br />
22 amp resistance 480 VAC 22 amp resistance 480 VAC<br />
CALIBRATION ACCURACY<br />
1.1°C (2°F)<br />
SWITCH TYPE<br />
Single Pole Double Throw<br />
These thermostats are used for ambient temperature<br />
control in ordinary or corrosive locations.<br />
OUTLINE<br />
124mm (4.9")<br />
114mm (4.5")<br />
26mm (3")<br />
102mm (4")<br />
10mm (.38")<br />
203mm (8")<br />
102mm (4")<br />
114mm (4.5")<br />
REGULATING EQUIPMENT.<br />
LISTED 266T<br />
142mm (5.6")<br />
29mm (0.16")<br />
20mm (.81")<br />
Annual Maintenance:<br />
1. Remove Cover.<br />
2. Lubricate dial stem and spray a coat of lubricant and rust preventative such as CRC Stor & Lube,<br />
electrical grade, on the thermostat body.<br />
3. Replace Cover.<br />
Approvals:<br />
General Locations<br />
UL - E89748 CSA - LR701949 CE<br />
P.O. BOX 726 • TULSA, OK 74101 • TEL 918-627-5530 • FAX 918-641-7336 • www.nelsonheaters.com<br />
GA-1990 Rev. 3<br />
August, 2005
NELSON HEAT TRACING SYSTEMS SPECIFICATION / APPLICATION<br />
<strong>TA4X140</strong> THERMOSTAT<br />
INSTALLATION<br />
INSTALLATION<br />
Junction Box<br />
Sensing Bulb<br />
Conduit to<br />
<strong>Thermostat</strong><br />
Stand-off<br />
<strong>Thermostat</strong><br />
Power Supply<br />
MI Cold Section<br />
Pipe Clamps<br />
Method for installing LT, HLT,<br />
CLT and NC heater cable types.<br />
Low Point Drain<br />
Pipe<br />
WIRING DIAGRAM<br />
DIRECT CONTROL<br />
LOW TEMP. ALARM<br />
Phase<br />
C<br />
Phase<br />
C<br />
NO<br />
NO<br />
Heater<br />
NC<br />
Alarm<br />
(low temperature)<br />
NC<br />
Nelson Heat Tracing Systems products are supplied with a limited warranty. Complete Terms and Conditions may be found on Nelson's website<br />
at www.nelsonheaters.com.<br />
P.O. BOX 726 • TULSA, OK 74101 • TEL 918-627-5530 • FAX 918-641-7336 • www.nelsonheaters.com<br />
GA-1990 Rev. 3<br />
August, 2005
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