| 431 MP | 3/2 1/8" tappet, spring return |
| 451 MP | 5/2 1/8" tappet, spring return |
| 431 MR | 3/2 1/8" short roller lever, spring return |
| 451 MR | 5/2 1/8" short roller lever, spring return |
| 431 MRL | 3/2 1/8" long roller lever, spring return |
| 451 MRL | 5/2 1/8" long roller lever, spring return |
| 431 MGR | 3/2 1/8" RED push button |
| 431 MGG | 3/2 1/8" YELLOW push button |
| 431 MGV | 3/2 1/8" GREEN push button |
| 431 MGN | 3/2 1/8" BLACK push button |
| 451 MGR | 5/2 1/8" RED push button |
| 451 MGG | 5/2 1/8" YELLOW push button |
| 451 MGV | 5/2 1/8" GREEN push button |
| 451 MGN | 5/2 1/8" BLACK push button |
