Nelson Heat Trace TH4X325-2 Application Information
NELSON™ HEAT TRACING SYSTEMS
SPECIFICATION / APPLICATION
TH4X325-2 THERMOSTAT
DESCRIPTION
These thermostats are used for controlling heat
tracing systems in an ordinary locations. The capillary
bulb should be mounted on the side of the pipe.
OUTLINE
ENCLOSURE
Die Cast Aluminum
CLASSIFICATIONS
NEMA Type 4X IP66
TEMPERATURE RANGE
Range
-4 to 163°C (25 to 325°F)
CAPILLARY
Length Material Max. Bulb Temp.
3m (10ft.) Stainless Steel 215°C (420°F)
ELECTRICAL DATA
CSA Rating UL Rating
22 amp resistance 208/240VAC 22 amp resistance 208/240VAC
RELAY COIL
208-240VAC, 4VA
CALIBRATION ACCURACY
1.6°C (3°F)
SWITCH TYPE
Double Pole Single Throw
Annual Maintenance:
1. Remove cover.
2. Spray a coat of lubricant and rust preventative such as CRC Stor & Lube, electrical grade,
on the thermostat body.
3. Replace cover.
Approvals:
General Locations
UL - E89748 CSA - LR701949 CE
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters
GA-2454 Rev. 0
November 2007
.com
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