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
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
Cart Icon
0
Cart Icon
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 (387 items) - Page 8

Ge Thermal Unit, 34.30 to 42.70A CR123F430B
Ge

Thermal Unit, 34.30 to 42.70A

Zoro # G3038244
Mfr # CR123F430B
product price:  $22.19
/ea
Sold in mult. of 3 for $66.57
Ge Thermal Unit, 1.67 to 1.79A CR123C196A
Ge

Thermal Unit, 1.67 to 1.79A

Zoro # G2187184
Mfr # CR123C196A
product price:  $23.89
/ea
Sold in mult. of 3 for $71.67
Ge Thermal Unit, 1.37A CR123H158A
Ge

Thermal Unit, 1.37A

Zoro # G1010502
Mfr # CR123H158A
product price:  $14.59
/ea
Ge Thermal Unit, 66.10 to 81.50A CR123F848B
Ge

Thermal Unit, 66.10 to 81.50A

Zoro # G1982854
Mfr # CR123F848B
product price:  $22.29
/ea
Sold in mult. of 3 for $66.87
Eaton Thermal Unit, 5.75 to 6.26A FH34
Eaton

Thermal Unit, 5.75 to 6.26A

Zoro # G4193691
Mfr # FH34
product price:  $57.79
/ea
Ge Thermal Unit, 110.00 to 118.00A CR123F133C
Ge

Thermal Unit, 110.00 to 118.00A

Zoro # G2708036
Mfr # CR123F133C
product price:  $20.69
/ea
Sold in mult. of 3 for $62.07
Square D Thermal Unit, 0.64 to 0.78A B0.92
Square D

Thermal Unit, 0.64 to 0.78A

Zoro # G3423917
Mfr # B0.92
product price:  $37.75
/ea
Eaton Thermal Unit, 15.13 to 16.00A MSH18-6A
Eaton

Thermal Unit, 15.13 to 16.00A

Zoro # G4017176
Mfr # MSH18-6A
product price:  $54.65
/ea
Eaton Thermal Unit, 1.55 to 1.71A FH20
Eaton

Thermal Unit, 1.55 to 1.71A

Zoro # G3899454
Mfr # FH20
product price:  $52.89
/ea
Eaton Cutler-Hammer Thermal Unit, 2.11 to 2.32A FH23
Eaton

Cutler-Hammer Thermal Unit, 2.11 to 2.32A

Zoro # G3981223
Mfr # FH23
product price:  $56.59
/ea
Ge Thermal Unit, 73.50 to 86.30A CR123F914B
Ge

Thermal Unit, 73.50 to 86.30A

Zoro # G3173773
Mfr # CR123F914B
product price:  $23.99
/ea
Sold in mult. of 3 for $71.97
Eaton Thermal Unit, 1.90 to 2.10A FH22
Eaton

Thermal Unit, 1.90 to 2.10A

Zoro # G4010246
Mfr # FH22
product price:  $53.89
/ea
Ge Thermal Unit, 0.53 to 0.57A CR123C066A
Ge

Thermal Unit, 0.53 to 0.57A

Zoro # G1392894
Mfr # CR123C066A
product price:  $20.79
/ea
Sold in mult. of 3 for $62.37
Ge Thermal Unit, 1.14A, PK3 CR123H132A
Ge

Thermal Unit, 1.14A, PK3

Zoro # G3465472
Mfr # CR123H132A
product price:  $15.35
/ea
Siemens Heater, Trip Class 20, Thermal SMFH50
Siemens

Heater, Trip Class 20, Thermal

Zoro # G4327209
Mfr # SMFH50
product price:  $22.45
/ea
Siemens ManualMotorControl, TripClass 20, Thermal SMFH36
Siemens

ManualMotorControl, TripClass 20, Thermal

Zoro # G4330316
Mfr # SMFH36
product price:  $30.59
/ea
Eaton Thermal Unit, 0.72 to 0.78A MSH-89A
Eaton

Thermal Unit, 0.72 to 0.78A

Zoro # G4107257
Mfr # MSH-89A
product price:  $48.79
/ea
Ge Thermal Unit, 51.00 to 54.90A CR123F614B
Ge

Thermal Unit, 51.00 to 54.90A

Zoro # G2979986
Mfr # CR123F614B
product price:  $24.99
/ea
Sold in mult. of 3 for $74.97
Ge Thermal Unit, 0.95A CR123H108A
Ge

Thermal Unit, 0.95A

Zoro # G1701332
Mfr # CR123H108A
product price:  $14.59
/ea
Ge Thermal Unit, 0.43 to 0.48A CR123C054A
Ge

Thermal Unit, 0.43 to 0.48A

Zoro # G3342945
Mfr # CR123C054A
product price:  $20.79
/ea
Sold in mult. of 3 for $62.37
Ge Thermal Unit, 26.10 to 29.20A CR123F300B
Ge

Thermal Unit, 26.10 to 29.20A

Zoro # G1728176
Mfr # CR123F300B
product price:  $22.19
/ea
Sold in mult. of 3 for $66.57
Siemens Heater, Trip Class 20, Thermal SMFH29
Siemens

Heater, Trip Class 20, Thermal

Zoro # G4327349
Mfr # SMFH29
product price:  $30.95
/ea
Eaton Cutler-Hammer Thermal Unit, 3.08 to 3.36A FH27
Eaton

Cutler-Hammer Thermal Unit, 3.08 to 3.36A

Zoro # G4074201
Mfr # FH27
product price:  $56.59
/ea
Ge Thermal Unit, 44.70 to 48.90A CR123F567B
Ge

Thermal Unit, 44.70 to 48.90A

Zoro # G0319575
Mfr # CR123F567B
product price:  $22.79
/ea
Sold in mult. of 3 for $68.37
Ge Thermal Unit, 0.58 to 0.65A CR123C071A
Ge

Thermal Unit, 0.58 to 0.65A

Zoro # G2720067
Mfr # CR123C071A
product price:  $20.69
/ea
Sold in mult. of 3 for $62.07
Ge Thermal Unit, 2.32A CR123H267A
Ge

Thermal Unit, 2.32A

Zoro # G3306992
Mfr # CR123H267A
product price:  $15.59
/ea
Ge Thermal Unit, 6.00 to 67.50A CR123F719B
Ge

Thermal Unit, 6.00 to 67.50A

Zoro # G2293566
Mfr # CR123F719B
product price:  $22.99
/ea
Sold in mult. of 3 for $68.97
Eaton Thermal Unit, 1.84 to 1.99A MSH2-3A
Eaton

Thermal Unit, 1.84 to 1.99A

Zoro # G4099392
Mfr # MSH2-3A
product price:  $55.89
/ea
Ge Thermal Unit, 0.58A CR123H067A
Ge

Thermal Unit, 0.58A

Zoro # G2492104
Mfr # CR123H067A
product price:  $13.69
/ea
Eaton Cutler-Hammer Thermal Unit, 4.80 to 5.26A MSH6-0A
Eaton

Cutler-Hammer Thermal Unit, 4.80 to 5.26A

Zoro # G4149117
Mfr # MSH6-0A
product price:  $54.29
/ea
Ge Thermal Unit, 0.64 to 0.69A CR123C078A
Ge

Thermal Unit, 0.64 to 0.69A

Zoro # G2139837
Mfr # CR123C078A
product price:  $20.69
/ea
Sold in mult. of 3 for $62.07
Ge Thermal Unit, 23.50 to 30.70A CR123C273B
Ge

Thermal Unit, 23.50 to 30.70A

Zoro # G3441663
Mfr # CR123C273B
product price:  $21.39
/ea
Sold in mult. of 3 for $64.17
Eaton Cutler-Hammer Thermal Unit, 26.50 to 28.50A FH53
Eaton

Cutler-Hammer Thermal Unit, 26.50 to 28.50A

Zoro # G4104685
Mfr # FH53
product price:  $63.19
/ea
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
Ge Thermal Unit, 0.92 to 1.03A CR123C109A
Ge

Thermal Unit, 0.92 to 1.03A

Zoro # G3160604
Mfr # CR123C109A
product price:  $25.15
/ea
Sold in mult. of 3 for $75.45
Ge Thermal Unit, 16.30 to 20.10A CR123C180B
Ge

Thermal Unit, 16.30 to 20.10A

Zoro # G2273135
Mfr # CR123C180B
product price:  $25.95
/ea
Sold in mult. of 3 for $77.85
Thermal Units (387 items) - Page 8
  • First
  • Previous
  • 8
    of 11 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 SwitchesElectrical Relays
Proximity SensorsElectronic TimersLighting PhotocontrolsElectromechanical TimersSensor Accessories
square d thermal unitssquare d thermal unitge thermal unitsthermal unitcutler hammer thermal unit
ge thermal uniteaton thermal unitsamerex b500square d thermalsquare d b2.40

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

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