Saf-T-Liner A electric chassis School Buses

School Buses Optimal EV Type A Electric Chassis

A battery-electric solution enabling zero-emissions performance in an extensive range of market segments. E1 is based on a dependable, proven cutaway package, but with better durability & efficiency, and simplified maintenance.

Nothing is more comforting than familiarity - except for the smooth, quiet power delivery of EV propulsion in an optimized chassis. With E1, you can have both, with an electric powertrain silently integrating with the convenience of OEM instrument cluster & controls.

Body Specifications

High Performance Traction Motor

1000 Nm Continuous Torque	1700 Nm Peak Torque	170 kW Continuous Power
280 kW Peak Power	300 - 750 vdc Voltage Range

Battery

113 kWh Proterra Battery	326V (Nominal) System Voltage	Water/Glycol Mixture Cooling
< 8 Hours Charge With Standard Level 2 AC Charge	< 2 Hours Fast Charge With Optional DC Fast Charge	-22° to +133°F (-30° to +56°C) Operating Temperature

Highlights

E-450 Ford Chassis Platform	All-Electric Propulsion System	~125+ Miles of Range *Range calculations based on WVU 5-Peak cycle at 76-88° F with 113kWh Proterra battery and installed bus body. Operating efficiency will vary with route conditions, vehicle configuration, ambient temperature, driving habits, etc.
113 kWh Proterra Battery	280 kW Traction Motor	~70 mph / 112 kph Max Speed
Push Button Shift Mechanism

Features

Engineered for Upfitting , Electrified for Fleets

A familiar platform gets even easier to utilize with the advantage of EV packaging, and lower operating costs with reduced maintenance.

Proterra Battery

With 113kW of energy storage, and proven by over 20 million miles of service, Optimal’s partnership with Proterra provides our products with the best performance & reliability, all from right here in the USA.

Rear-Mounted Motor

With 280 kW of propulsion on tap and 1700 Nm of instant EV torque, E1 can reach a top speed of 70 mph (112 kph) and has 30% gradeability *.

Secured Power Electronics

Another first in the industry: our products feature 100% of the power electronics, including the battery, motor, driveline, motor controllers, and power/cooling lines, in between the chassis rails while also protecting the vehicle’s critical components.