Technical data

March 2009
CA08102001E For more information visit: www.eaton.com
33-107
NEMA Contactors & Starters
33
Freedom
Relays — Thermal Overload
Product Selection
Table 33-166. C306 Thermal Overload Relays

NEMA Sizes 5 – 8 use the 32A overload in conjunction with CTs.

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 on Page 33-105.

These relays can be panel mounted only.
Table 33-167. C306 Thermal Overload Relays

Overload relay assembled with mounting adapter for DIN rail or
panel mount.

Panel mount only.

NEMA Sizes 5 – 8 use the 32A overload in conjunction with CTs.
Heater Pack Selection
Heater packs H2001B to H2017B and H2101B to H2117B are
to be used only with Series B overload relays Catalog
Numbers C306DN3B (Part No. 10-7016) and C306GN3B
(Part No. 10-7020). The load lugs are built into the overload
relay base to allow load wiring prior to heater pack installa-
tion. The previous heater design had integral load lugs.
The Series B heater packs are electrically equivalent to the
previous heater design. Heaters H2018-3 to H2024-3 have
not changed.
Table 33-168. Starters with Series B Overload Relays
Note: The series of a starter is the last digit of the listed Catalog
Number. EXAMPLE: AN16DN0AB.
For Use with Freedom
Series Contactors
Maximum
Ampere
Rating
Number
of Poles
Open Type NEMA 1 Enclosed
NEMA
Size
Catalog
Number
Price
U.S. $
Catalog
Number
Price
U.S. $
00, 0
1, 2
3
4
5 – 8

32

75

105

144

—
3
3
3
3
—
C306DN3B
C306GN3B
C306KN3
C306NN3
—
C306DG3B
C306GG3B
—
75A Overload
Cat. No. C306GN3B
75A Overload
Cat. No. C306GT3B
32A Overload
Cat. No. C306DT3B
32A Overload
Cat. No. C306DN3B
For Stand-Alone
Applications
Maximum
Ampere
Rating
Number
of Poles
Open Type
NEMA Size Catalog
Number
Price
U.S. $
00, 0, 1

1

3

4

5 – 8

32
75
105
144
—
3
3
3
3
—
C306DT3B
C306GT3B
C306KN3
C306NN3
—
Heater Pack
H2001B – H2017B
Heater Pack
H2101B – H2117B
Heater Pack
H2018 – H2024
NEMA — AN Type IEC — AE Type
Size Series Size Series
00 – 0
1 – 2
5
6
7 – 8
C
B
B
C
B
A – F
G – K
C
B
Technical Data . . . . . . . . Page 33-104
Dimensions . . . . . . . . . . . . Page 33-106
Replacement Parts . . . . . Pages 33-105 – 33-106
Discount Symbol . . . . . . . 1CD1C