Barksdale Series THR, THL Temperature Switch

for Industrial Applications

Barksdale's THR & THL Series Temperature Switches add flexibility to Barksdale's solid reputation for quality & reliability and offers versatility for your temperature switching needs. These thermostats are ideal for freeze protection or temperature control in more demanding industrial applications. The THR & THL Series thermostats feature 10 foot stainless steel sensors for remote monitoring and local mount sensors for ambient temperature sensing. The THR & THL Series feature limit switches with 22 amps @ 125/250 VAC and 3 amps @ 480 VAC electrical ratings that allow thermostats to be used for higher current, heat tracing applications. The THR & THL Series models are all UL listed & CSA approved.

General Specifications*Accuracy:±1% of full scaleSwitch:
Type:
Rating:
SPDT, prewired snap action
22 amp @ 125/250/480 VACElectrical Characteristics:All models incorporate Underwriters’ Laboratories, Inc. and CSA listed single pole double throw snap-action switching elements. Switches may be wired normally open or normally closed.Electrical Connection:3/4" NPT female conduit connection. 3 pole terminal block accepts 14-10 AWG wire.Electrical Ratings:22 amps @ 125/250/480 VACEnclosure Rating:NEMA 4XEnclosure/Housing:Anodized die cast aluminum Green polyurethane coated Other exposed parts: stainless steelBulb and Capillary:
Material:
Bulb:
Capillary Length:
System Pressure (max):
Fill:
316L stainless steel
7-3/4” (197mm), 5/16” (8mm) dia.
10’ (3m), remote mount
300 psi without thermowell
Silicone oil-fi lledwithout thermowell Silicone oil-fi lledApprovals:UL listed, fi le 56247
CSA certifi ed, fi le LR 34555
EMI/RFI: to EN 55011Temperature Range:15°F - 325°F (-9°C - 163°C)Ambient Temperature:See table below (media temperature limit)Adjustment:External adjustment knob. Turn clockwise to
decrease setpointVibration:10 g’s 10 - 500 Hz, MIL-STD 202FShock:50 g’s, 10 mS, MIL-STD 901CStandard Options:
R**(Option):


R2 (Option):
DPST relay switch
22 amp @120/240/277 VAC
Relay coil: 120 VAC, 4VA
120/240/277 VAC
Relay coil: 240 VAC, 4VAWeight:1.9 lbs. (0.9 kg)* See Product Confi gurator for additional options.General SpecificationsMedia Temperature LimitsAdjustable RangeDifferential (approximate)Sensing LocationCatalog NumberFactory Set Point-40° to 420°F
(-40° to 215°C)25° to 325°F
(-4° to 163°C)10°F
(5.6°C)Line Sensing T-statTHR-L2S-10X-Q10125°F ± 5° decreasing-40° to 160°F
(-40° to 71°C)15° to 140°F
(-9° to 60°C)10°F
(5.6°C)Ambient Sensing T-statTHL-L1S-X-Q1040°F ± 4°
decreasing