Barksdale

Series THR, THL

  • High Accuracy
  • Line or Ambient Sensing
  • NEMA 4X & IP 65
  • UL, CSA and CE Approved
  • External Adjustment Knob

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.

Specifications

General Specifications*

Accuracy: ±1% of full scale
Switch:
Type:
Rating:
SPDT, prewired snap action
22 amp @ 125/250/480 VAC
Electrical 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 VAC
Enclosure Rating: NEMA 4X
Enclosure/Housing: Anodized die cast aluminum Green polyurethane coated Other exposed parts: stainless steel
Bulb 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 lled
Approvals: UL listed, fi le 56247
CSA certifi ed, fi le LR 34555
EMI/RFI: to EN 55011
Temperature 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 setpoint
Vibration: 10 g’s 10 – 500 Hz, MIL-STD 202F
Shock: 50 g’s, 10 mS, MIL-STD 901C
Standard 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, 4VA
Weight: 1.9 lbs. (0.9 kg)

General Specifications

Media Temperature Limits Adjustable Range Differential (approximate) Sensing Location Catalog Number Factory 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-stat THR-L2S-10X-Q10 125°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-stat THL-L1S-X-Q10 40°F ± 4°
decreasing

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