The following tables show the terminal contact numbers
on the controller that you can use with each relay. See Ordering information for information about all TC controller relay
functions and refer to your controller's installation guide for information about
your model's relay functions.
Table 1. K1 relay terminal numbers
TC controller |
Common |
SPST or SPDT NO |
SPDT NC |
TC3221 |
2 |
3 |
n/a |
TC3222 |
2 |
3 |
n/a |
TC3223 |
2 |
3 |
n/a |
TC3224 |
2 |
6 |
n/a |
TC3B21 |
2 |
3 |
n/a |
TC3B22 |
2 |
3 |
n/a |
TC3B23 |
2 |
3 |
n/a |
TC3X21 |
7 |
8 |
6 |
Table 2. K2 relay terminal numbers
TC controller |
Common |
SPST or SPDT NO |
SPDT NC |
TC3222 |
5 |
6 |
7 |
TC3223 |
5 |
6 |
7 |
TC3224 |
6 |
3 |
n/a |
TC3B22 |
5 |
6 |
7 |
TC3B23 |
5 |
6 |
7 |
Table 3. K3 relay terminal numbers
TC controller |
Common |
SPST NO |
TC3223 |
2 |
1 |
TC3224 |
6 |
1 |
TC3B23 |
2 |
1 |
Table 4. K4 relay terminal numbers
TC controller |
Common |
SPST NO |
TC3224 |
6 |
5 |