DescriptionCatalog NumberPriceU.S. $Series Al OverloadRelay Lug Adapter KitC306KAL1-3BCat. No. C306KAL1-3Overload RelayLug Adapter KitSuperseded 32A Series A Overload RelayCat. No. C306DN3Superseded 75A Series AOverload RelayCat. No. C306GN3AmpereSizeDimensions in Inches (mm)Ship. Wt.Lbs. (kg)Wide A High B Deep C MountingDEF (Slot)G (Hole)32A75A105 & 144A1.77 (45.0)2.54 (64.5)4.00 (101.6)4.13 (104.9)4.69 (119.1)7.17 (182.1)3.69 (93.7)3.74 (95.0)4.91 (124.7)1.36 (34.5)2.00 (50.8)3.00 (76.2)3.74 (95.0)3.45 (87.6)6.62 (168.1).18 x .30 (4.6 x 7.6).22 x .26 (5.6 x 6.6).18 (4.6) Dia..21 (5.3) Dia..8 (.4)1.4 (.6)4.0 (1.8)Stand-Alone Overload RelaysDACCEBEBADF32A and 75A SizesC306DT3B and C306GT3B105A and 144A Sizes C306KN3 and C306NN3GMtg. Holes for (3)1/4-20 ScrewsDiscount Symbol . . . . . . . . . . . . . . . . . . . . . . . 1CD1CFebruary 2007CA08102001EFor more information visit: www.eaton.comNEMA Contactors & Starters 33 FreedomRelays Thermal Overload Factory ModicationsC306 Thermal Overlo Features . . . . . . . . . . . . . . . 33-113Operation . . . . . . . . . . . . . . 33-113Technical Information . . . . 33-113Technical Data . . . . . . . . . . 33-114Factory Modications . . . . 33-115Accessories. . . . . . . . . . . . . 33-115Replacement Parts. . . . . . . 33-115Dimensions. . . . . . . . . . . . . 33-116Product Selection. . . . . . . . 33-117Heater Pack Selection . . . . 33-117Product DescriptionC306 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. February 2007www.eaton.comCA08102001E