| GX21 Series Product Selection Table | |||
| Model | Coil Voltage | Coil Termination | Auxiliary Contact |
| GX21BA | 12 Vdc | 38 cm (15 in) | None |
| GX21BAB | 12 Vdc | 38 cm (15 in) | SPST, Normally Open |
| GX21BAC | 12 Vdc | 38 cm (15 in) | SPST, Normally Closed |
| GX21BB | 12 Vdc | 61 cm (24 in) | None |
| GX21BBB | 12 Vdc | 61 cm (24 in) | SPST, Normally Open |
| GX21BBC | 12 Vdc | 61 cm (24 in) | SPST, Normally Closed |
| GX21BC | 12 Vdc | 122 cm (48 in) | None |
| GX21BCB | 12 Vdc | 122 cm (48 in) | SPST, Normally Open |
| GX21BCC | 12 Vdc | 122 cm (48 in) | SPST, Normally Closed |
| GX21CA | 24 Vdc | 38 cm (15 in) | None |
| GX21CAB | 24 Vdc | 38 cm (15 in) | SPST, Normally Open |
| GX21CAC | 24 Vdc | 38 cm (15 in) | SPST, Normally Closed |
| GX21CB | 24 Vdc | 61 cm (24 in) | None |
| GX21CBB | 24 Vdc | 61 cm (24 in) | SPST, Normally Open |
| GX21CBC | 24 Vdc | 61 cm (24 in) | SPST, Normally Closed |
| GX21CC | 24 Vdc | 122 cm (48 in) | None |
| GX21CCB | 24 Vdc | 122 cm (48 in) | SPST, Normally Open |
| GX21CCC | 24 Vdc | 122 cm (48 in) | SPST, Normally Closed |
| GX21FA | 48 Vdc | 38 cm (15 in) | None |
| GX21FAB | 48 Vdc | 38 cm (15 in) | SPST, Normally Open |
| GX21FAC | 48 Vdc | 38 cm (15 in) | SPST, Normally Closed |
| GX21FB | 48 Vdc | 61 cm (24 in) | None |
| GX21FBB | 48 Vdc | 61 cm (24 in) | SPST, Normally Open |
| GX21FBC | 48 Vdc | 61 cm (24 in) | SPST, Normally Closed |
| GX21FC | 48 Vdc | 122 cm (48 in) | None |
| GX21FCB | 48 Vdc | 122 cm (48 in) | SPST, Normally Open |
| GX21FCC | 48 Vdc | 122 cm (48 in) | SPST, Normally Closed |
| GX21HA | 72 Vdc | 38 cm (15 in) | None |
| GX21HAB | 72 Vdc | 38 cm (15 in) | SPST, Normally Open |
| GX21HAC | 72 Vdc | 38 cm (15 in) | SPST, Normally Closed |
| GX21HB | 72 Vdc | 61 cm (24 in) | None |
| GX21HBB | 72 Vdc | 61 cm (24 in) | SPST, Normally Open |
| GX21HBC | 72 Vdc | 61 cm (24 in) | SPST, Normally Closed |
| GX21HC | 72 Vdc | 122 cm (48 in) | None |
| GX21HCB | 72 Vdc | 122 cm (48 in) | SPST, Normally Open |
| GX21HCC | 72 Vdc | 122 cm (48 in) | SPST, Normally Closed |
| GX21JA | 120 Vdc | 38 cm (15 in) | None |
| GX21JAB | 120 Vdc | 38 cm (15 in) | SPST, Normally Open |
| GX21JAC | 120 Vdc | 38 cm (15 in) | SPST, Normally Closed |
| GX21JB | 120 Vdc | 61 cm (24 in) | None |
| GX21JBB | 120 Vdc | 61 cm (24 in) | SPST, Normally Open |
| GX21JBC | 120 Vdc | 61 cm (24 in) | SPST, Normally Closed |
| GX21JC | 120 Vdc | 122 cm (48 in) | None |
| GX21JCB | 120 Vdc | 122 cm (48 in) | SPST, Normally Open |
| GX21JCC | 120 Vdc | 122 cm (48 in) | SPST, Normally Closed |
| GX21KA | 120 Vac | 38 cm (15 in) | None |
| GX21KAB | 120 Vac | 38 cm (15 in) | SPST, Normally Open |
| GX21KAC | 120 Vac | 38 cm (15 in) | SPST, Normally Closed |
| GX21KB | 120 Vac | 61 cm (24 in) | None |
| GX21KBB | 120 Vac | 61 cm (24 in) | SPST, Normally Open |
| GX21KBC | 120 Vac | 61 cm (24 in) | SPST, Normally Closed |
| GX21KC | 120 Vac | 122 cm (48 in) | None |
| GX21KCB | 120 Vac | 122 cm (48 in) | SPST, Normally Open |
| GX21KCC | 120 Vac | 122 cm (48 in) | SPST, Normally Closed |
| GX21LA | 240 Vac | 38 cm (15 in) | None |
| GX21LAB | 240 Vac | 38 cm (15 in) | SPST, Normally Open |
| GX21LAC | 240 Vac | 38 cm (15 in) | SPST, Normally Closed |
| GX21LB | 240 Vac | 61 cm (24 in) | None |
| GX21LBB | 240 Vac | 61 cm (24 in) | SPST, Normally Open |
| GX21LBC | 240 Vac | 61 cm (24 in) | SPST, Normally Closed |
| GX21LC | 240 Vac | 122 cm (48 in) | None |
| GX21LCB | 240 Vac | 122 cm (48 in) | SPST, Normally Open |
| GX21LCC | 240 Vac | 122 cm (48 in) | SPST, Normally Closed |
| GX21SA | 12 Vdc, Low Power | 38 cm (15 in) | None |
| GX21SAB | 12 Vdc, Low Power | 38 cm (15 in) | SPST, Normally Open |
| GX21SAC | 12 Vdc, Low Power | 38 cm (15 in) | SPST, Normally Closed |
| GX21SB | 12 Vdc, Low Power | 61 cm (24 in) | None |
| GX21SBB | 12 Vdc, Low Power | 61 cm (24 in) | SPST, Normally Open |
| GX21SBC | 12 Vdc, Low Power | 61 cm (24 in) | SPST, Normally Closed |
| GX21SC | 12 Vdc, Low Power | 122 cm (48 in) | None |
| GX21SCB | 12 Vdc, Low Power | 122 cm (48 in) | SPST, Normally Open |
| GX21SCC | 12 Vdc, Low Power | 122 cm (48 in) | SPST, Normally Closed |
| GX21TA | 24 Vdc, Low Power | 38 cm (15 in) | None |
| GX21TAB | 24 Vdc, Low Power | 38 cm (15 in) | SPST, Normally Open |
| GX21TAC | 24 Vdc, Low Power | 38 cm (15 in) | SPST, Normally Closed |
| GX21TB | 24 Vdc, Low Power | 61 cm (24 in) | None |
| GX21TBB | 24 Vdc, Low Power | 61 cm (24 in) | SPST, Normally Open |
| GX21TBC | 24 Vdc, Low Power | 61 cm (24 in) | SPST, Normally Closed |
| GX21TC | 24 Vdc, Low Power | 122 cm (48 in) | None |
| GX21TCB | 24 Vdc, Low Power | 122 cm (48 in) | SPST, Normally Open |
| GX21TCC | 24 Vdc, Low Power | 122 cm (48 in) | SPST, Normally Closed |