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 Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Customer Service
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 (412 items) - Page 6

Ge Thermal Unit, 2.76A CR123H317A
Ge

Thermal Unit, 2.76A

Zoro # G3285737
Mfr # CR123H317A
product price:  $19.99
/ea
Eaton Cutler-Hammer Thermal Unit, 4.82 to 5.26A FH32
Eaton

Cutler-Hammer Thermal Unit, 4.82 to 5.26A

Zoro # G4060095
Mfr # FH32
product price:  $61.89
/ea
Ge Thermal Unit, 8.47 to 9.92A CR123C955A
Ge

Thermal Unit, 8.47 to 9.92A

Zoro # G1033164
Mfr # CR123C955A
product price:  $24.89
/ea
Sold in mult. of 3 for $74.67
Eaton Cutler-Hammer Thermal Unit, 4.04 to 4.40A FH30
Eaton

Cutler-Hammer Thermal Unit, 4.04 to 4.40A

Zoro # G4212695
Mfr # FH30
product price:  $56.49
/ea
Eaton Thermal Unit, Trip Class 20, Thermal FH14
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G3914644
Mfr # FH14
product price:  $56.49
/ea
Ge Thermal Unit, NEMA 0; 00; 1 CR123C131A
Ge

Thermal Unit, NEMA 0; 00; 1

Zoro # G0457021
Mfr # CR123C131A
product price:  $25.19
/ea
Sold in mult. of 3 for $75.57
Ge Thermal Unit, 73.50 to 86.30A CR123F914B
Ge

Thermal Unit, 73.50 to 86.30A

Zoro # G3173773
Mfr # CR123F914B
product price:  $24.69
/ea
Sold in mult. of 3 for $74.07
Ge Thermal Unit, 5.43A CR123H625A
Ge

Thermal Unit, 5.43A

Zoro # G0373213
Mfr # CR123H625A
product price:  $18.25
/ea
Ge Thermal Unit, 22.30 to 29.30A CR123C250B
Ge

Thermal Unit, 22.30 to 29.30A

Zoro # G2523017
Mfr # CR123C250B
product price:  $24.49
/ea
Sold in mult. of 3 for $73.47
Square D Thermal Unit, TripClass 20, MeltingAlloy A1.16
Square D

Thermal Unit, TripClass 20, MeltingAlloy

Zoro # G1439952
Mfr # A1.16
product price:  $29.69
/ea
Square D Thermal Unit, TripClass 20, MeltingAlloy A1.86
Square D

Thermal Unit, TripClass 20, MeltingAlloy

Zoro # G2140817
Mfr # A1.86
product price:  $28.95
/ea
Ge Thermal Unit, 2.53A CR123H291A
Ge

Thermal Unit, 2.53A

Zoro # G1622424
Mfr # CR123H291A
product price:  $16.49
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH30
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330270
Mfr # SMFH30
product price:  $26.99
/ea
Ge Thermal Unit, 4.22A CR123H486A
Ge

Thermal Unit, 4.22A

Zoro # G1698952
Mfr # CR123H486A
product price:  $17.85
/ea
Ge ThermalUnit, TripClass 20, 36.8 to 41.9A CR123C400B
Ge

ThermalUnit, TripClass 20, 36.8 to 41.9A

Zoro # G1868772
Mfr # CR123C400B
product price:  $26.59
/ea
Sold in mult. of 3 for $79.77
Square D Thermal Unit, TripClass 20, MeltingAlloy A1.63
Square D

Thermal Unit, TripClass 20, MeltingAlloy

Zoro # G2994302
Mfr # A1.63
product price:  $28.99
/ea
Square D Thermal Unit, TripClass 20, MeltingAlloy A1.54
Square D

Thermal Unit, TripClass 20, MeltingAlloy

Zoro # G3058912
Mfr # A1.54
product price:  $34.39
/ea
Square D Thermal Unit, TripClass 20, MeltingAlloy A.71
Square D

Thermal Unit, TripClass 20, MeltingAlloy

Zoro # G0300151
Mfr # A.71
product price:  $27.89
/ea
Eaton Cutler-Hammer Thermal Unit, 4.41 to 4.81A FH31
Eaton

Cutler-Hammer Thermal Unit, 4.41 to 4.81A

Zoro # G3970836
Mfr # FH31
product price:  $55.99
/ea
Ge Thermal Unit, 33.30 to 39.20A CR123F395B
Ge

Thermal Unit, 33.30 to 39.20A

Zoro # G0939653
Mfr # CR123F395B
product price:  $24.35
/ea
Sold in mult. of 3 for $73.05
Siemens Heater Element, Trip Class 20, Thermal SMFH09
Siemens

Heater Element, Trip Class 20, Thermal

Zoro # G4330867
Mfr # SMFH09
product price:  $25.59
/ea
Eaton Thermal Unit, Trip Class 20, Thermal MSH3-7A
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G3929475
Mfr # MSH3-7A
product price:  $57.55
/ea
Eaton Thermal Unit, Trip Class 20, Thermal MSH-74A
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4053795
Mfr # MSH-74A
product price:  $54.99
/ea
Eaton Thermal Unit, Trip Class 20, Thermal FH06
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G4106742
Mfr # FH06
product price:  $71.15
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH20
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4325459
Mfr # SMFH20
product price:  $24.79
/ea
Eaton Cutler-Hammer Thermal Unit, 3.28 to 3.59A MSH4-1A
Eaton

Cutler-Hammer Thermal Unit, 3.28 to 3.59A

Zoro # G4096382
Mfr # MSH4-1A
product price:  $57.55
/ea
Siemens Heater, Trip Class 20, Thermal SMFH29
Siemens

Heater, Trip Class 20, Thermal

Zoro # G4327349
Mfr # SMFH29
product price:  $30.95
/ea
Square D Thermal Unit, TripClass 20, MeltingAlloy A9.25
Square D

Thermal Unit, TripClass 20, MeltingAlloy

Zoro # G1606281
Mfr # A9.25
product price:  $25.89
/ea
Square D Thermal Unit, TripClass 20, MeltingAlloy CC39.6
Square D

Thermal Unit, TripClass 20, MeltingAlloy

Zoro # G2058147
Mfr # CC39.6
product price:  $32.69
/ea
Ge Thermal Unit, 23.50 to 30.70A CR123C273B
Ge

Thermal Unit, 23.50 to 30.70A

Zoro # G3441663
Mfr # CR123C273B
product price:  $23.89
/ea
Sold in mult. of 3 for $71.67
Eaton Cutler-Hammer Thermal Unit, 3.60 to 3.99A MSH4-5A
Eaton

Cutler-Hammer Thermal Unit, 3.60 to 3.99A

Zoro # G4036216
Mfr # MSH4-5A
product price:  $53.07
/ea
Eaton Cutler-Hammer Thermal Unit, 3.69 to 4.03A FH29
Eaton

Cutler-Hammer Thermal Unit, 3.69 to 4.03A

Zoro # G4230651
Mfr # FH29
product price:  $58.95
/ea
Eaton Thermal Unit, Trip Class 20, Thermal FH18
Eaton

Thermal Unit, Trip Class 20, Thermal

Zoro # G3887161
Mfr # FH18
product price:  $64.79
/ea
Eaton Cutler-Hammer Thermal Unit, 6.84 to 7.45A FH36
Eaton

Cutler-Hammer Thermal Unit, 6.84 to 7.45A

Zoro # G4114406
Mfr # FH36
product price:  $58.19
/ea
Ge Thermal Unit, 6.00 to 67.50A CR123F719B
Ge

Thermal Unit, 6.00 to 67.50A

Zoro # G2293566
Mfr # CR123F719B
product price:  $23.69
/ea
Sold in mult. of 3 for $71.07
Ge Thermal Unit, 90.00 to 97.00A CR123F114C
Ge

Thermal Unit, 90.00 to 97.00A

Zoro # G2575027
Mfr # CR123F114C
product price:  $25.15
/ea
Sold in mult. of 3 for $75.45
Thermal Units (412 items) - Page 6
  • First
  • Previous
  • 6
    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 SensorsSensor AccessoriesSpring Wound TimersOccupancy Sensors
square d thermal unitcutler hammer thermal unitge thermal unitssquare d thermalsquare d thermal overload
fasco a163square d b2.40amerex b500ge thermal unitthermal unit

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, Inc

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, Inc