Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro home
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Support
0
0
 Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Electrical Supplies
  4. /
  5. Industrial Electrical Controls & Automation
  6. /
  7. Electrical Controls
  8. /
  9. Thermal Units

Thermal Units (400 items) - Page 11

Eaton Electric Heaters EA MSH8.A
Eaton

Electric Heaters EA

Zoro # G521854349
Mfr # MSH8.A
product price: 
$22.99
/ea
Crouse-Hinds Heater Packs and Elements MSH.89A
Crouse-Hinds

Heater Packs and Elements

Zoro # G521851614
Mfr # MSH.89A
product price: 
$68.25
/ea
Eaton Thermal Unit, Trip Class 20, Thermal FH50
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4126464
Mfr # FH50
product price: 
$52.59
/ea
Eaton Thermal Unit, Trip Class 20, Thermal MSH1-45A
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G3970696
Mfr # MSH1-45A
product price: 
$53.49
/ea
Eaton Thermal Unit, Trip Class 20, Thermal FH07
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4018953
Mfr # FH07
product price: 
$61.49
/ea
Westinghouse Thermal Overload Heater Element (A200 Series, NEMA Sizes 0/1/2) FH10
Westinghouse

Thermal Overload Heater Element (A200 Series, NEMA Sizes 0/1/2)

Zoro # G822797482
Mfr # FH10
product price: 
$21.95
/ea
Eaton Thermal Unit, Trip Class 20, Thermal MSH15-6A
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4157273
Mfr # MSH15-6A
product price: 
$61.89
/ea
Eaton Thermal Unit, Trip Class 20, Thermal MSH2-3A
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4099392
Mfr # MSH2-3A
product price: 
$53.29
/ea
Ge Thermal Unit, 31.30 to 37.00A CR123F357B
Ge

Thermal Unit, 31.30 to 37.00A

Zoro # G1549764
Mfr # CR123F357B
product price: 
$22.45
/ea
Sold in mult. of 3 for $67.35
Eaton Heater Packs and Elements 21.3-22.8A FH50
Eaton

Heater Packs and Elements 21.3-22.8A

Zoro # G121852912
Mfr # FH50
product price: 
$22.19
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH21
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4326414
Mfr # SMFH21
product price: 
$26.19
/ea
Eaton Thermal Unit, Trip Class 20, Thermal MSH2-1A
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G3944412
Mfr # MSH2-1A
product price: 
$51.79
/ea
Eaton Electric Heaters Overload Thermal Heater .846-1.37A, 3PK H2104B-3
Eaton

Electric Heaters Overload Thermal Heater .846-1.37A, 3PK

Zoro # G416150341
Mfr # H2104B-3
product price: 
$21.59
/pk of 3, $7.20/ea
Joslyn Clark Controls Motor Overload Heater Element, 2PK S1.05
Joslyn Clark Controls

Motor Overload Heater Element, 2PK

Zoro # G123510001
Mfr # S1.05
product price: 
$3.15
/pk of 2, $1.58/ea
Sold in mult. of 3 pks for $9.45
Eaton Thermal Unit, Trip Class 20, Thermal FH03
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4076904
Mfr # FH03
product price: 
$59.19
/ea
Eaton Cutler-Hammer Thermal Unit, 36.10 to 38.90A FH57
Eaton

Cutler-Hammer Thermal Unit, 36.10 to 38.90A

Zoro # G3889261
Mfr # FH57
product price: 
$52.29
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH18
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330404
Mfr # SMFH18
product price: 
$26.59
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH17
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4328776
Mfr # SMFH17
product price: 
$25.89
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH16
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330368
Mfr # SMFH16
product price: 
$32.75
/ea
Eaton Thermal Unit, Trip Class 20, Thermal MSH-55A
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G3894651
Mfr # MSH-55A
product price: 
$52.69
/ea
Westinghouse Thermal Overload Heater Element (A200 Series, NEMA Sizes 0/1/2) FH11
Westinghouse

Thermal Overload Heater Element (A200 Series, NEMA Sizes 0/1/2)

Zoro # G022797336
Mfr # FH11
product price: 
$13.59
/ea
Eaton Thermal Unit, Trip Class 20, Thermal MSH17-1A
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4005617
Mfr # MSH17-1A
product price: 
$51.19
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH28
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4327376
Mfr # SMFH28
product price: 
$27.49
/ea
Ge Thermal Unit, NEMA 3, 17.4 to 18.4 A CR123F233B
Ge

Thermal Unit, NEMA 3, 17.4 to 18.4 A

Zoro # G0978993
Mfr # CR123F233B
product price: 
$21.49
/ea
Sold in mult. of 3 for $64.47
Joslyn Clark Controls Motor Overload Heater Element, 2PK S8.60
Joslyn Clark Controls

Motor Overload Heater Element, 2PK

Zoro # G123509937
Mfr # S8.60
product price: 
$2.89
/pk of 2, $1.45/ea
Sold in mult. of 3 pks for $8.67
Eaton Cutler-Hammer Thermal Unit, 1.04 to 1.15A MSH1-3A
Eaton

Cutler-Hammer Thermal Unit, 1.04 to 1.15A

Zoro # G4083642
Mfr # MSH1-3A
product price: 
$52.79
/ea
Siemens-Furnas Controls Electric Heaters H89
Siemens-Furnas Controls

Electric Heaters

Zoro # G721855351
Mfr # H89
product price: 
$10.89
/ea
Eaton Thermal Unit, Trip Class 20, Thermal FH55
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4202712
Mfr # FH55
product price: 
$57.75
/ea
Siemens-Furnas Controls 6 in x 6 in, Class 125 Flanged x Class 125 Flanged, 140 PSI, 360 Cv, Cast Iron Body K92
Siemens-Furnas Controls

6 in x 6 in, Class 125 Flanged x Class 125 Flanged, 140 PSI, 360 Cv, Cast Iron Body

Zoro # G223510161
Mfr # K92
product price: 
$2.85
/ea
Sold in mult. of 3 for $8.55
Eaton Electric Heaters H1026
Eaton

Electric Heaters

Zoro # G916262513
Mfr # H1026
product price: 
$54.65
/ea
Westinghouse Thermal Overload Heater Element FH16
Westinghouse

Thermal Overload Heater Element

Zoro # G322797432
Mfr # FH16
product price: 
$27.29
/ea
Siemens Heater Packs and Elements G30T34
Siemens

Heater Packs and Elements

Zoro # G416262679
Mfr # G30T34
product price: 
$8.75
/ea
Eaton Thermal Unit, Trip Class 20, Thermal FH56
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4185474
Mfr # FH56
product price: 
$53.39
/ea
Eaton Electric Heaters EA H1222
Eaton

Electric Heaters EA

Zoro # G721853616
Mfr # H1222
product price: 
$6.75
/ea
Sold in mult. of 2 for $13.50
Eaton Thermal Unit, Trip Class 20, Thermal FH08
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4031002
Mfr # FH08
product price: 
$64.69
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH03
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330246
Mfr # SMFH03
product price: 
$27.69
/ea
Thermal Units (400 items) - Page 11
  • First
  • Previous
  • 11
    of 12 pages
  • Next
  • Last
How was your search?

About Thermal Units

Motors used in industrial manufacturing can be easily overloaded—and that’s where a thermal unit can really help you out. Thermal units protect motors by tripping or shutting off circuits when temperatures get too hot, which can very quickly damage or totally disable a motor. Overload relays are available as well. If you need a motor starter in addition to your thermal unit, check out our magnetic motor starters and manual motor starters.

Related Categories

Motor Starters, Enclosures & AccessoriesElectrical Contactors & ContactsMotor Overload RelaysManual Motor SwitchesSwitches
Electrical RelaysProximity SensorsLighting PhotocontrolsSensor AccessoriesElectromechanical Timers
square d thermal overloadamerex b500square d thermalge thermal unitsquare d thermal unit
square d b2.40cutler hammer thermal unitthermal uniteaton thermal unitsfasco a163

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research
  • Tax Exemption
Zoro home

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us
© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro home