Proterra Catalyst
| Proterra Catalyst | |
|---|---|
| Top: Catalyst BE40 operated by King County Metro Bottom: Catalyst BE35 operated by San Diego International Airport | |
| Overview | |
| Manufacturer | Proterra | 
| Production | 2014–2020 | 
| Body and chassis | |
| Class | Transit bus | 
| Layout | Rear-engine, rear-wheel-drive | 
| Powertrain | |
| Electric motor | 
 | 
| Transmission | Eaton EEV-7202 | 
| Dimensions | |
| Wheelbase | BE40: 296.5 in (7.53 m) BE35: 243 in (6.17 m) | 
| Length | BE40: 42 ft 7+1⁄2 in (12.99 m) BE35: 36 ft 11+1⁄2 in (11.3 m) | 
| Width | 102 in (2.59 m) | 
| Height | 134 in (3.40 m) | 
| Curb weight | 
 | 
| Chronology | |
| Predecessor | Proterra EcoRide | 
| Successor | Proterra ZX5 | 
The Proterra Catalyst is a battery-electric low-floor transit bus that was built by Proterra from 2014 to 2020. The second generation of Proterra's battery-electric buses, it succeeded the earlier EcoRide as the company's flagship product.