EATON Freedom Series NEMA Contactors & Electric Motor Starters
Freedom Series Thermal Overload Relays
32A Overload—C306DN3B
Product Description:
C306 Overload Relays are designed for use with CE or CN non-reversing and reversing contactors. Four sizes are available for overload protection up to 144A.
Features
- Selectable manual or automatic reset operation
- Interchangeable heater packs adjustable ±24% to match motor FLA and calibrated for use with 1.0 and 1.15 service factor motors. Heater packs for 32A overload relay will mount in 75A overload relay—useful in derating applications such as jogging
- Class 10 or 20 heater packs
- Load lugs built into relay base
- Bimetallic, ambient compensated operated. Trip free mechanism
- Electrically isolated NO-NC contacts (pull RESET button to test)
- Overload trip indication
- Shrouded or fingerproof terminals to reduce possibility of electrical shock
Freedom Series - C306 Thermal Overload Relays for use with Contactors
C306DN3B
| NEMA Size | Maximum Ampere Rating |
Number of Poles | Open Type Part Number |
NEMA 1 Enclosed Part Number |
| 00,0 | 32 (2) | 3 | C306DN3B | C306DG3B |
| 1, 2 | 75 (2) | 3 | C306GN3B | C306GG3B |
| 3 | 105 (3) | 3 | C306KN3 | ~ |
| 4 | 144 (3) | 3 | C306NN3 | ~ |
| 5 - 8 (1) | ~ | ~ | ~ | ~ |
Notes
(1) NEMA Sizes 5–8 use the 32A overload in conjunction with CTs.
(2) Series B overload relays have load lugs built into relay base and will only accept Series B heater packs. These relays can be directly attached to contactor or they can be DIN rail or panel mounted using adapter.
(3) These relays can be panel mounted only.
(4) Overload relay assembled with mounting adapter for DIN rail or panel mount.
(5) Panel mount only.
(6) NEMA Sizes 5–8 use the 32A overload in conjunction with CTs.
Freedom Series - C306 Thermal Overload Relays for Standalone Applications
C306DT3B
| NEMA Size | Maximum Ampere Rating | Number of Poles | Open Type Part Number |
| 00, 0, 1 (4) | 32 | 3 | C306DT3B |
| 1 (4) | 75 | 3 | C306GT3B |
| 3 (5) | 105 | 3 | C306KN3 |
| 4 (5) | 144 | 3 | C306NN3 |
| 5 - 8 (6) | ~ | ~ | ~ |
Notes
(1) NEMA Sizes 5–8 use the 32A overload in conjunction with CTs.
(2) Series B overload relays have load lugs built into relay base and will only accept Series B heater packs. These relays can be directly attached to contactor or they can be DIN rail or panel mounted using adapter.
(3) These relays can be panel mounted only.
(4) Overload relay assembled with mounting adapter for DIN rail or panel mount.
(5) Panel mount only.
(6) NEMA Sizes 5–8 use the 32A overload in conjunction with CTs.