
C306DN3B Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $61.41 | Condition is New, EATON CUTLER-HAMMER C306DN3B OVERLOAD RELAY 3P 32A 1NO/1NC **NEW IN BOX**, shipping cost = $14.21 | 100.0% |
![]() | $99.00 | Condition is New, NEW Eaton Cutler-Hammer C306DN3B Overload Relay 3 pole 32A, shipping cost = $16.45 | 100.0% |
![]() | $119.95 | Condition is New, NEW OLD STOCK! EATON CUTLER-HAMMER 32A 3 POLE 1NO-1NC OVERLOAD RELAY C306DN3B, FREE SHIPPING | 100.0% |
![]() | $125.00 | Condition is New, Eaton C306DN3B Bimetal Overload Relay, 3-Pole 32 Amp, New, shipping cost = $15.00 | 100.0% |
![]() | $130.01 | Condition is New, Eaton C306DN3B Overload Relay Ser B1 32A 3 Pole 1NO 1NC, shipping cost = $15.52 | ![]() |
![]() | $135.00 | Condition is New, Eaton Cutler-Hammer CHC306DN3B C-H C306DN3B Overload Relay, shipping cost = $12.00 | 100.0% |
![]() | $149.99 | Condition is New, Eaton C306DN3B Thermal Overload Relay New In Box , FREE SHIPPING | 99.8% |
![]() | $145.00 | Condition is New, EATON C306DN3B - THERMAL OVERLOAD RELAY, SERIES B1, 3 POLE OPEN TYPE, shipping cost = $7.95 | 100.0% |
![]() | $150.00 | Condition is New, 1PC EATON CUTLER HAMMER C306DN3B Relay, Thermal Overload, 32Amp, Freedom Series, shipping cost = $10.00 | 99.6% |
![]() | $165.00 | Top Pick! Condition is New, EATON CORPORATION C306DN3 (NEW IN BOX) With 14.4-23.8A Heaters (3), shipping cost = $6.37 | 100.0% |
![]() | $173.00 | Condition is New, EATON C306DN3B RELAY 600V NSMP, FREE SHIPPING | 99.8% |
![]() | $173.00 | Condition is New, EATON C306DN3B SER.B1 RELAY NSMP, FREE SHIPPING | 99.8% |
![]() | $186.99 | Condition is New, C306DN3B - Eaton - Overload Relay, FREE SHIPPING | 99.9% |
![]() | $180.18 | Condition is New, C306DN3B Eaton Relay, Thermal Overload, 32Amp, Freedom Series, shipping cost = $15.88 | 87.5% |
![]() | $214.56 | Condition is New, EATON CORPORATION C306DN3B / C306DN3B (BRAND NEW), shipping cost = $12.90 | 99.7% |
![]() | $225.00 | Condition is New, EATON C306DN3B SER B OVERLOAD RELAY, shipping cost = $10.00 | 100.0% |
![]() | $252.53 | Condition is New, EATON C306DN3B Cutler Hammer- 3P 32A 1N/O 1N/C OverloadRelay, FREE SHIPPING | 98.7% |
![]() | $220.46 | Top Pick! Condition is New, EATON CORPORATION C306DN3B / C306DN3B (BRAND NEW), shipping cost = $36.13 | 99.4% |
![]() | $287.99 | Condition is New, Eaton Cutler-Hammer C306dn3b Relay 3P 32A 1N/O 1N/C Overloadrelay, FREE SHIPPING | ![]() |
![]() | $296.71 | Condition is New, Cutler Hammer-Eaton C306DN3B 3P 32A 1N/O 1N/C OverloadRelay, FREE SHIPPING | 99.7% |
![]() | $324.00 | Condition is New, Eaton C306DN3B Series B1 Overload Relay FNFP, FREE SHIPPING | 99.8% |
![]() | $366.08 | Condition is New, Eaton Cutler-Hammer Starter Replacement Overload Relay, FREE SHIPPING | 99.8% |
![]() | $423.57 | Condition is New, C306DN3B Cutler Hammer, Div of Eaton Overload Relays NEMA Freedom Thermal, FREE SHIPPING | 99.6% |
![]() | $504.79 | Condition is New, 1PC EATON CUTLER HAMMER C306DN3B Relay, Thermal Overload, 32Amp, Freedom Se, shipping cost = $10.99 | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $23.99 | Condition is Used, Eaton C306DN3B Cutler Hammer Thermal Overload Relay, C306DN3 Series B1, FREE SHIPPING | 100.0% |
![]() | $23.99 | Condition is Used, Eaton C306DN3B Cutler Hammer Thermal Overload Relay, C306DN3 Series B1, FREE SHIPPING | 100.0% |
![]() | $23.99 | Condition is Used, Eaton Cutler C306DN3B Hammer Thermal Overload Relay, C306DN3 Series B1, FREE SHIPPING | 100.0% |
![]() | $19.67 | Condition is Used, Eaton Cutler Hammer 18amp C1 Contactor AN16ANO Thermal Overload Relay C306DN3 B1, shipping cost = $7.88 | 100.0% |
![]() | $28.99 | Condition is Used, Eaton Cutler C306DN3B Hammer Thermal Overload Relay, C306DN3 Series B1, w/mount, FREE SHIPPING | 100.0% |
![]() | $29.99 | Condition is Used, Eaton C306DN3B Thermal Overload Relay Ser B1 32A 3 Pole .560-.907 H2003B, FREE SHIPPING | 99.9% |
![]() | $29.99 | Condition is Used, Eaton C306DN3B Thermal Overload Relay Used Working Clean, FREE SHIPPING | 99.8% |
![]() | $20.00 | Condition is Used, EATON 2pc. C306TB1 & C306DN3 Contactor Relay With Terminal Base Adapter B1 , shipping cost = $11.72 | 100.0% |
![]() | $34.99 | Condition is Used, Eaton Cutler Hammer C306DN3B Thermal Overload Relay, C306DN3 Series B1, w/mount, FREE SHIPPING | 100.0% |
![]() | $44.49 | Condition is Used, Eaton C306DN3B Cutler Hammer Thermal Overload Relay Series B1, w/C25DND325, FREE SHIPPING | 100.0% |
![]() | $44.99 | Condition is Used, Eaton C306DN3B Cutler Hammer Thermal Overload Relay, C306DN3 Series B1, w/H2011B, FREE SHIPPING | 100.0% |
![]() | $72.71 | Condition is Used, EATON C306DN3B CUTLER HAMMER , FREE SHIPPING | 99.9% |
![]() | $75.00 | Condition is Used, EATON C306TB1 SER. A1, C306DN3 SER. B1 Contractor Relay W/Adapter 2pc Series, FREE SHIPPING | 100.0% |
![]() | $73.79 | Condition is Used, EATON CORPORATION C306DN3B RELAY, shipping cost = $9.65 | 99.8% |
![]() | $103.49 | Condition is Used, EATON C306TB1 & C306DN3 Contractor Relay W Terminal Base Adapter 2pc Series B1, FREE SHIPPING | 98.8% |
![]() | $122.50 | Top Pick! Condition is Used, Eaton Cutler-Hammer CHC306DN3B C-H C306DN3B Overload Relay, shipping cost = $10.95 | 99.8% |
![]() | $138.70 | Condition is Used, EATON CORPORATION C306DN3B / C306DN3B (USED), shipping cost = $12.90 | 99.7% |
![]() | $30.00 | Condition is Used, One Eaton Cutler Hammer C306DN3 B1 Overload Relay w/ 3x Heater Used In Good, shipping cost = $132.70 | 99.5% |
![]() | $150.00 | Condition is Used, EATON OVERLOAD RELAY C306DN3B, shipping cost = $15.10 | 100.0% |
![]() | $142.51 | Condition is Used, EATON CORPORATION C306DN3B / C306DN3B (USED), shipping cost = $36.13 | 99.4% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $49.86 | Condition is New – Open box, Eaton Cutler Hammer C306DN3B Overload Relay, 32Amp, 3-Pole, 600VAC, 1NO/NC, shipping cost = $19.36 | 100.0% |
![]() | $69.92 | Condition is New – Open box, SURPLUS NEW Eaton C306DN3B 32 Amp Thermal Overload Relay Electrical, shipping cost = $ | 94.7% |
![]() | $85.50 | Condition is New – Open box, Eaton Cutler-Hammer C306DN3B Overload Relay, shipping cost = $10.95 | ![]() |
![]() | $101.92 | Condition is New – Open box, Eaton C306DN3B Overload Relay, FREE SHIPPING | 99.8% |
![]() | $95.00 | Condition is New – Open box, Eaton C306DN3B Bimetal Overload Relay, 3-Pole 32 Amp, New, shipping cost = $16.45 | 100.0% |
![]() | $105.00 | Condition is New – Open box, Eaton C306DN3B 32 AMP OVERLOAD RELAY, shipping cost = $9.14 | 100.0% |
![]() | $115.00 | Condition is New – Open box, Eaton C306DN3B Overload Relay 32 Amp, FREE SHIPPING | ![]() |
![]() | $117.00 | Top Pick! Condition is New – Open box, Eaton C306DN3B 32 AMP OVERLOAD RELAY, FREE SHIPPING | 100.0% |
![]() | $99.00 | Condition is New – Open box, EATON C306DN3B OVERLOAD RELAY, shipping cost = $19.00 | 100.0% |
![]() | $65.02 | Condition is New – Open box, Eaton Cutler-Hammer C306DN3B Thermal Overload Relay 3 Pole 32A, shipping cost = $55.64 | 100.0% |
![]() | $105.00 | Condition is New – Open box, EATON C306DN3B OVERLOAD RELAY, shipping cost = $17.41 | 99.7% |
![]() | $120.00 | Top Pick! Condition is New – Open box, NEW!! Eaton C306DN3B Overload Relay 32 Amp, shipping cost = $11.00 | 99.9% |
![]() | $122.50 | Condition is New – Open box, EATON OVERLOAD RELAY C306DN3B, shipping cost = $17.41 | 99.7% |
![]() | $125.00 | Top Pick! Condition is New – Open box, Eaton C306DN3B Overload Relay 32 Amp, shipping cost = $17.41 | 100.0% |
![]() | $144.64 | Top Pick! Condition is New – Open box, Eaton Cutler-Hammer CHC306DN3B C-H C306DN3B Overload Relay, Black, FREE SHIPPING | 97.8% |
![]() | $152.62 | Top Pick! Condition is New – Open box, Eaton Cutler-Hammer CHC306DN3B C-H C306DN3B Overload Relay, Black, FREE SHIPPING | 99.1% |
![]() | $150.24 | Condition is New – Open box, C306DN3B Eaton/Cutler Hammer NEMA 00-0 32A Comp Bi-Metal Overload Relay -SA, shipping cost = $23.00 | 100.0% |
![]() | $174.00 | Condition is New – Open box, EATON C306DN3B SER. B1 600VAC 32A NSMP, FREE SHIPPING | 99.9% |
![]() | $170.00 | Condition is New – Open box, EATON C306DN3B SER. B1 NSFB - OVERLOAD RELAY, shipping cost = $5.00 | 99.6% |
![]() | $171.24 | Condition is New – Open box, EATON CORPORATION C306DN3B / C306DN3B (NEW IN BOX), shipping cost = $12.90 | 99.7% |
![]() | $200.00 | Condition is New – Open box, EATON CUTLER HAMMER C306DN3B Overload Relay, 32 Amp Maximum Rating, 3 Pole, shipping cost = $ | 93.3% |
![]() | $175.95 | Top Pick! Condition is New – Open box, EATON CORPORATION C306DN3B / C306DN3B (NEW IN BOX), shipping cost = $36.13 | 99.4% |
![]() | $277.00 | Condition is New – Open box, EATON C306DN3B SER. B1 32A NSMP, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $71.41 | Condition is New: Never Used, EATON CUTLER-HAMMER C306DN3B Overload Relay 32A, shipping cost = $17.11 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $227.90 | Condition is Unspecified, EATON C306DN3B Cutler Hammer- 3P 32A 1N/O 1N/C OverloadRelay, FREE SHIPPING | 97.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $67.84 | Condition is Brand New, EATON C306DN3B 3P 32A THERMAL OVERLOAD RELAY 1 NO 1NC VDE-0660 NEW OPEN TYPE, shipping cost = $53.56 | 99.5% |

The Eaton Cutler-Hammer C306DN3B is a premium quality 1-pole, 2-throw (1P2T) thermal overload relay designed for heavy-duty applications. This relay is rated for a current of 32 Amperes and is an essential component for protecting electrical circuits from overloading, which could potentially cause damage or even result in a fire.
The C306DN3B features a thermal overload element that monitors the temperature of the coil and the contacts. If the temperature exceeds a certain threshold, the relay will disconnect the circuit to prevent further heating and potential damage. This thermal protection mechanism makes it an indispensable tool for safeguarding electrical systems and ensuring their reliable operation.
This particular model is designed with a compact size, measuring 1.5 inches long, 1.2 inches wide, and 0.8 inches high. Despite its small footprint, it offers robust performance and can handle industrial environments, thanks to its rugged construction. The relay is suitable for use in applications within the temperature range of -40 F to 140 F (-40 C to 60 C), ensuring its versatility in various operating conditions.
The C306DN3B comes with a clear and concise labeling system that makes it easy to install and troubleshoot. The relay terminals are numbered, allowing for quick identification of the input and output connections. Additionally, this relay features a quick-disconnect feature for easy removal and replacement.
This thermal overload relay is RoHS compliant, meaning it contains no restricted substances under the European Union's Restriction of Hazardous Substances Directive. It also comes with a one-year warranty, providing customers with peace of mind and confidence in their purchase.
In summary, the Eaton Cutler-Hammer C306DN3B 1PC Relay is a top-tier thermal overload relay designed for industrial applications. Its 32-amp rating, thermal overload protection, and compact size make it an ideal choice for safeguarding electrical circuits against overloading and potential damage. With its rugged construction, easy-to-use labeling system, and quick-disconnect feature, this relay offers reliable performance and is an essential component for maintaining the safety and efficiency of electrical systems.
Pros and Cons of Buying Eaton Cutler-Hammer C306DN3B 1pc Relay with Thermal Overload Protection (32 Amp)
The Eaton Cutler-Hammer C306DN3B relay is a commonly used electrical component designed to protect circuits from overloads. Let's weigh the advantages and disadvantages of purchasing this particular model.
Pros:1. Thermal Overload Protection: This relay is equipped with thermal overload protection, which automatically disconnects the circuit when it overheats, preventing potential damage to the system.
2. High Current Capacity: With a 32 amp current rating, it can handle larger loads than some other relays in its class.
3. Durable Construction: Eaton Cutler-Hammer relays are known for their robust design and long service life, ensuring reliable operation even in demanding environments.
4. UL Listed: This relay is UL listed, meaning it has been tested and meets the safety and performance standards set by Underwriters Laboratories.
5. Easy Installation: The C306DN3B comes with mounting hardware, making installation a straightforward process for most users.
Cons:1. Price: Compared to some lower-end relays, the C306DN3B may be more expensive due to its advanced features and higher current capacity.
2. Size: With its larger size, this relay may require more space in the electrical panel or enclosure, which could be a concern for those with limited space.
3. Manual Reset: Unlike some relays, the C306DN3B does not have an automatic reset function. Users must manually reset the relay after a thermal overload occurs.
Conclusion:The Eaton Cutler-Hammer C306DN3B 1pc Relay with Thermal Overload Protection (32 Amp) offers several advantages, including thermal overload protection, high current capacity, durable construction, UL listing, and easy installation. However, it also comes with some disadvantages, such as a higher price point, larger size, and manual reset functionality. Ultimately, the decision to purchase this relay depends on the specific requirements of your electrical application and your budget. If thermal overload protection is a priority and you can accommodate the size and cost, the C306DN3B is a reliable and robust choice.
Recommendation:If you're looking for a reliable and robust 32 amp relay with thermal overload protection, the Eaton Cutler-Hammer C306DN3B is an excellent option. Its UL listing and easy installation process make it a wise investment for those seeking peace of mind and protection for their electrical systems. However, consider your available budget and space constraints before making your final decision.
Details:
1pc Eaton Cutler Hammer C306DN3B relay, thermal overload, 32amp, freedom series.
specifications indusswitch:
- brand: Eaton Cutler Hammer
- mpn: C306dn3b
- model: Eaton C306dn3b
seller indusswitch:
- # reviews: 6112
- rating: 99.4%
- city: spartanburg, south carolina
shipping indusswitch:
- type: fixed
- class: standard
- service: usps ground advantage
- carrier: usps
- transit: 6-12 days
payments indusswitch:
- wallet: apple-pay
- other
- credit card: discover
returns indusswitch:
- paid by: buyer
- policy: returns accepted
- time: 30 days
- method: money back
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Rocker Switches
offer indusswitch:
- prices: $30.00–$504.79
- item condition:
- New
- Used
- New – Open box
- New: Never Used
- Unspecified
- Brand New
- sold #: 16
- in stock #: 5
- best offers: true
- availability: in stock
- options: ship-to-home
- started: august 31, 2025
Also Purchased:
- DH361UGK: SWITCH, Eaton Cutler Hammer
- DPF221RP: CUTTER HAMMER, Eaton
- E51SAL: SWITCH SENSOR, Cutler Hammer
- 7590K4: HAMMER SWITCH, Eaton
- E30KE231: BUTTON COVER, Cutler Hammer
- P3F325RN: HAMMER PLUG POLE, Eaton
- 10250T1342: SWITCH BOX, Eaton
- E22R2: HAMMER LIGHT BULB, Eaton Cutler Hammer
- 10250T5: HAMMER PULL, Cutler Hammer
- E30KE300: BUTTON, Cutler Hammer
- 8500K9: SWITCH, Cutler Hammer






































































