Yes, dynamic braking transistors are standard on the following models:
- 230 V units up to 50 HP Heavy Duty (HD) / 60 HP Normal Duty (ND)
- 460 V units up to 100 HP HD / 125 HP ND
- 460 V 250 HP HD / 350 HP ND model
All other AS3 models require the dynamic braking transistor option to be installed.