Barksdale ML1H, L2H Local Mount Temperature Switches
BRAND : Barksdale
Barksdale's ML1H & L2H Series Temperature Switches provide unmatched performance, quality & reliability in a mechanical thermostat. The single set point ML1H and dual set point L2H, can switch, measure & control temperatures from -50° to 450°F (-45° to 232°C), while the optional adjustable differential provides precise control. These locally mounted switches provide fast response and accurate measurements at the temperature source. Both the ML1H & L2H Series are electrically rated for 10 amps @ 125/250 VAC & 3 amps @ 480 VAC. Standard 3- & 6-pin terminal strips simplify installation. The ML1H & L2H Series are rated NEMA 4 & 13; the optional NEMA 4X construction protects the rugged die-cast aluminum enclosure from corrosive environments. Copper or stainless steel temperature sensors are available to handle a wide range of media. Optional thermowells allow the sensor to work in pressurized vessels to 5000 psi. UL listed & CSA approved, ML1H & L2H Series Temperature Switches are perfect for your temperature sensing needs.
General Specifications*
| Accuracy: | ±1% of mid-60% of full range. At constant ambient ±0.5% of full scale. (Knob indication is reference only) |
| Switch: | Single: 1 SPDT Dual switching: 2 independent SPDT circuits |
| 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. |
| Wetted Parts: | Brass or 304 stainless steel |
| Electrical Connection: | Single: 3-pin terminal strip Dual: 6-pin terminal strip |
| Electrical Ratings: | AC value at 50% power factor —10 amps 125, 250 volts AC, 3 amps 480 volts AC. Automatically reset by snap-action of switch. |
| Enclosure/Housing: | Water-tight and dust-tight indoor and outdoor (NEMA 4) / oil-tight and dust-tight indoor (NEMA 13). |
| Local Mount: | Immersion length 2-1/16 inches |
| Approvals/Listings: UL: CSA: | Underwriters’ Laboratories, Inc. and Canadian Standard Assoc. are listed under temperature indicating and regulating equipment. File No. E56247, Guide No. XAPX File No. LR34555, Guide 400-E-O Class 4813 |
| Temperature Range: | See product confi gurator. |
| Adjustment: | Tamper resistant external adjustment. Turn knob clockwise to increase setpoint. (Knob indication is reference only) |
| Weight: | Single: approximate 1.5 lbs. Dual: approximate 3.0 lbs. |
| * See Product Configurator for additional options. | |
Wiring Code
| Lead | Circuit #1 | Circuit #2 |
|---|---|---|
| Normally Closed | Blue | Orange |
| Common | Purple | Brown |
| Normally Open | Red | Yellow |
