Toggle menu FLW, Inc.
  • Contact Us
  • My Account
  • Sign in or Create an account
  •   Items / $0.00

800-576-6308

available 7am to 5pm PT

  • Brands
    • Barksdale
    • GO Regulator
    • GO Switch by Topworx
    • KOBOLD Instruments
    • ASCO
    • Ashcroft
    • AI-Tek Instruments
    • Automatic Timing and Controls (ATC)
    • Teledyne Hastings Instruments
    • Bellofram Precision Controls
    • Haskel
    • Freudenberg NOK Sealing Technologies
    • WIKA Instruments
    • TSI Alnor
    • Meriam Process Technologies
    • International Power
    • Mensor
    • ChemTec
    • GPI Flomec
    • WIKA High Precision
    • DH Budenberg
    • View All Brands
  • Products
    • Accessories
    • Accumulators
    • Air Amplifiers
    • Air Capture Hoods
    • Air Quality Meters
    • Air Velocity Meters
    • Air Velocity Transducers
    • Bimetal Thermometers
    • Bypass Level
    • Calibrators
    • Circular Charts
    • Counters
    • Deadweight Testers
    • Duct Leakage Testers
    • Flow Meters
    • Flow Monitors
    • Flow Valves
    • Gas Boosters
    • Hart Communicators
    • Lab Hood Monitors
    • Level Switches
    • Limit Switches
    • Pneumatic Pumps
    • Power Supplies
    • Pressure Gauges
    • Pressure Regulators
    • Pressure Switches
    • Pressure Transducers
    • Pressure Valves
    • Solenoid Valves
    • Solenoid Valve Rebuild Kits
    • Solenoid Valve Coil Kits
    • Speed Sensors
    • Tachometer Transducers
    • Tachometers
    • Temperature Controllers
    • Temperature Switches
    • Thermometers
    • Time Delay Relays
    • Timers
    • Vacuum Instruments
    • Valve Controllers
    • View All Products
  • Contact
  • About

  • Brands
    • All Brands
    • Barksdale
    • GO Regulator
    • GO Switch by Topworx
    • KOBOLD Instruments
    • ASCO
    • Ashcroft
    • AI-Tek Instruments
    • Automatic Timing and Controls (ATC)
    • Teledyne Hastings Instruments
    • Bellofram Precision Controls
    • Haskel
    • Freudenberg NOK Sealing Technologies
    • WIKA Instruments
    • TSI Alnor
    • Meriam Process Technologies
    • International Power
    • Mensor
    • ChemTec
    • GPI Flomec
    • WIKA High Precision
    • DH Budenberg
  • Products
    • All Products
    • Accessories
    • Accumulators
    • Air Amplifiers
    • Air Capture Hoods
    • Air Quality Meters
    • Air Velocity Meters
    • Air Velocity Transducers
    • Bimetal Thermometers
    • Bypass Level
    • Calibrators
    • Circular Charts
    • Counters
    • Deadweight Testers
    • Duct Leakage Testers
    • Flow Meters
    • Flow Monitors
    • Flow Valves
    • Gas Boosters
    • Hart Communicators
    • Lab Hood Monitors
    • Level Switches
    • Limit Switches
    • Pneumatic Pumps
    • Power Supplies
    • Pressure Gauges
    • Pressure Regulators
    • Pressure Switches
    • Pressure Transducers
    • Pressure Valves
    • Solenoid Valves
    • Solenoid Valve Rebuild Kits
    • Solenoid Valve Coil Kits
    • Speed Sensors
    • Tachometer Transducers
    • Tachometers
    • Temperature Controllers
    • Temperature Switches
    • Thermometers
    • Time Delay Relays
    • Timers
    • Vacuum Instruments
    • Valve Controllers
  • Contact
  • About
  • My Account
  • Wish LiST
  • Gift Certificates
  • Home
  • Temperature Switches
  • Barksdale ML1H Series Local Mount Temperature Switch, Single Setpoint, 75 F to 200 F, ML1H-S203-WS
Barksdale ML1H Series Local Mount Temperature Switch, Single Setpoint, 75 F to 200 F, ML1H-S203-WS
  • Barksdale ML1H Series Local Mount Temperature Switch, Single Setpoint, 75 F to 200 F, ML1H-S203-WS

Barksdale

Barksdale ML1H Series Local Mount Temperature Switch, Single Setpoint, 75 F to 200 F, ML1H-S203-WS

$985.84
Was:
Now: $887.26
Special Pricing for Volume Buyers, OEMs, and Resellers. 
For bulk orders or special pricing, contact FLW directly.
Note: Store.FLW.com is for credit card orders only and is not connected to existing FLW Customer Accounts.
Quantity:
Availability:
⚠️ This item is currently out of stock but available for purchase. Delivery timelines for out-of-stock items vary depending on the brand and product. Click here for more information.
PART NUMBER:
ML1H-S203-WS
SHIPPING WEIGHT:
2.00 LBS
SHIPPING:

🚚 Free Ground Shipping on Qualifying Orders (See Details)

All international orders must be placed directly with an FLW product specialist. Get in touch or read our shipping policy.

Adding to cart… The item has been added
  • Description
  • Specifications
  • Literature

Description

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.

Features:
  • Reliable & accurate
  • Local sensing
  • NEMA 4
  • UL, CSA & CE approved
  • Single or dual switching

Applications:
  • Oil & gas
  • Mining
  • Tanks and reservoirs
  • Compressors
  • Plastic machinery
  • Factory automation
  • Process equipment
  • Machine tools and industrial equipment


Factory preset setpoint options are available. Contact FLW for further information.

State of California Proposition 65

WARNING
Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Product Specifications

General Specifications
Accuracy:±1% of mid-60% of full range. At constant ambient ± 0.5% of full scale.
Electrical Connection:3-pin terminal strip
Adjustable Range
LowHigh
+75° F+200° F
Switch
Type:Single switch, Single set point (SPDT)
Rating:15 amps @ 125/250/480 VAC; 0.05 amps @ 125 VDC; Adjustable differential
Wetted Material:Brass
Enclosure:NEMA 4 enclosure
Options
Thermowell:316 stainless steel local mount thermowell

Literature & Docs

Accessories

FREE UPS GROUND SHIPPING

×

Orders that qualify for FREE UPS Ground shipping

  • Order total greater than $250.00
  • Total cart weight is less than 50 lbs
  • Shipping address located within the lower 48 contiguous states
!
FLW logo

FLW, Inc. specializes in the sales of physical measurement, control and calibration products. We carry over 50 top product lines and can calibrate & service most of the brands we sell. We're happy to help.

Sales

  • Brands
  • Products

Service

  • Calibration

Systems

  • Engineered Systems

Company

  • About
  • Quality
  • Locations
  • Contact
  • Privacy Policy
  • Terms & Conditions

FLW, Inc.

  • 5672 Bolsa Avenue
    Huntington Beach, CA 92649 USA
  • 6860 Argonne Street
    Unit C
    Denver, CO 80249 USA

(800) 576-6308 |

Copyright © 2026 FLW, Inc. All rights reserved. S.D.G.