KIT-PISTON RING 1440502 - Caterpillar

A1
The auxiliary contacts operate on the availability of the normal power source. The contacts are located on R1 and/or R2. Refer to illustration 1. R1 has inputs 1 and 2. R1 controls contacts 5 through 7 and 11 through 13. R2 has inputs 3 and 4. R2 controls contacts 8 through 10 and 14 through 16. The ratings for the contacts are 10 Amp at 277 ACV or 10 Amp at 30 DCV.Example
Illustration 1 g00823761
Terminals 11 and 12 are closed when the normal power source is acceptable. Terminals 11 and 13 are open. When the normal power source is unacceptable, the opposite is true. The diagram shows the normal power source as being unavailable.A1E
The auxiliary contacts operate on the availability of the emergency power source. The contacts are located on R1 and/or R2. Refer to illustration 2. R1 has inputs 1 and 2. R1 controls contacts 5 through 7 and 11 through 13. R2 has inputs 3 and 4. R2 controls contacts 8 through 10 and 14 through 16. The ratings for the contacts are 10 Amp at 277 ACV or 10 Amp at 30 DCV.Example
Illustration 2 g00823761
Terminals 11 and 12 are closed when the emergency power source is acceptable. Terminals 11 and 13 are open. When the emergency power source is unacceptable, the opposite is true. The diagram shows the emergency power source as being unavailable.A3/A4
The A3/A4 connections are located on the transfer switch. The exact locations of the connections depend on the model. The A4 contact closes when the transfer switch is in the NORMAL position. The A3 contact closes when the transfer switch is in the EMERGENCY position.A6
The A6 auxiliary contacts open prior to the transfer in either direction. The contacts close after the transfer has occurred. See illustration 3. R1 has inputs 1 and 2. R1 controls contacts 5 through 7 and 11 through 13. R2 has inputs 3 and 4. R2 controls contacts 8 through 10 and 14 through 16. A jumper should be placed between contacts 7 and 8. A jumper should also be placed between contacts 13 and 14. The ratings for the contacts are 10 Amp at 277 ACV or 10 Amp at 30 DCV.Example
Illustration 3 g00823818
Terminals 11 to 16 will open up five seconds before the transfer. The terminals will close after the transfer.Note: The pre-signal time is adjustable via the T3/W3 timers. See Service Information, "Programmable Options".For the complete sequence of operation, see Service Information, "Timers".A62
The A62 auxiliary contacts open prior to the transfer in either direction and the contacts close in sequence after the transfer. The rating for the contacts is 5 Amp at 250 ACV. Note: The pre-signal time is adjustable via the T3/W3 timers. See Service Information, "Programmable Options".Note: Sequence timers are adjustable and the timers are located on the auxiliary panel.The A62 contacts will open before the transfer. The contacts will close after the transfer when the corresponding timers have timed out. See illustration 4.The sequence timer for the A62-1 contact is T62-1.The sequence timer for the