455 Series SafeSet Wheel Style Electric Locomotive Parking Brake

455 wabtec westinghouse Series SafeSet Wheel Style Electric Locomotive Parking Brake

The 455 Series SafeSet Wheel Style Electric Locomotive Parking Brake was designed for installation in GE locomotives and is a will fit in the same space envelope as the Ellcon-National 210 Series mechanical hand brake. As with the 419 Series, the patented torque gate technology allows going directly from manual mode of operation to automatic mode of operation and vice versa without changing any settings or moving a lever. Remote operation is available along with feedback on set and release conditions. With thousands of electric locomotive parking brakes in the field they have become the industry standard.
 
Specifications

  • Standard Power Automatic Minimum Vertical Chain Force: 6300 lbs nominal (5200 lbs min, 7700 lbs max)
  • Low Power Automatic Minimum Vertical Chain Force: 4850 lbs nominal (4200 lbs min, 5800 lbs max)
  • Output Force Control in Automatic Mode: Current sensing circuit activation point pre-set at the factory to either the standard or low power setting.
  • Diameter of Wheel used with Standard Power Models: 22”
  • Diameter of Wheel used with Low Power Models: 16”
  • Both Standard and Low Power versions rated at 105 lbf applied tangential to the wheel when used in the manual mode.
  • Chain Take Up Rate in Automatic Mode: 1.5 ft/minute (~ 18”/minute) (no load)
  • Chain Take Up Rate in Manual Mode: 13 turns/ft
  • Chain Take Up Range: Unlimited
  • Operating Voltage Range: 45 to 87 VDC operating. Tolerates continuous exposure up to 138 VDC.
  • Average Run Current: 2 Amps @ 74VDC
  • Nominal Idle Current: .04 Amps @ 74 VDC
  • Full Load Current (Standard Power version): 8 Amps @ 74 VDC
  • Maximum Inrush Current: 20 Amps @ 74VDC for <100 milliseconds
  • Operating Temperature Range: -40 to +158 deg. F. (-40 to +70 deg C.)
  • Weight: 165 lbs
  • Transient Protection: +/- 600 VDC FWHM for 5 milliseconds
  • Brake Chain: Standard ½” locomotive hand brake chain supplied with the brake.
  • Chain Angularity Limits: 5 degrees side to side, 3 degrees front to back