DC/AC Inverters

Powerbox PBSP 74I SERIES DC/AC Inverter - Railway (2kW)

The Powerbox PBSP 74I Series DC/AC Railway Inverter is a durable 2kW solution specifically designed for railway rolling stock applications. Engineered to provide stable and high-quality AC power, it supports critical rail systems such as onboard equipment and signaling infrastructure.

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powerbox-pbsp-74i-series

Features

  • 2000W DC/AC Inverter
  • Rolling Stock Rail 74VDC Input
  • Rugged Build
  • High Surge Rating 6KW
  • Input Spike & Burst Protected
  • Model Variants available; -PS
Specifications
INPUT (PRELIMINARY SPECIFICATIONS)
Input Voltage: 74Vdc (60-84Vdc)
Startup voltage 67Vdc
Under voltage cut-out 59Vdc.
Under voltage re-set 71Vdc.
Over voltage cut-out 90Vdc.
Over voltage re-set 87Vdc
Input Current Standby: 30mA ON with no load: TBD Pout = 2000W, Vin=74Vdc; 30A, Any load, 60V < Vin < 84Vdc; 37A max
DISPLAYS, CONTROLS & ALARMS
Front Panel Controls (-PS) DC Input 50A 10kA MCB AC Output 10A MCB/RCD
Right Side Controls (-PS) ON/OFF Toggle Switch
Right Side Displays (-PS) ON / Standby / Overload LED Overtemperature LED DC Volts Out of Range LED
OUTPUT
Output Voltage 240Vrms (237.5 - 242.5Vrms) 0W < Pout < 2000W, Vin = 74Vdc . (228 - 252Vrms) 0W < Pout < 2000W, 60V < Vin < 84Vdc
Total Harmonic Distortion 3% 0W < Pout < 2,000W, Vin = 74Vdc
Continuous output power 2,000W, Ta = 50°C, PF=1.0
Continuous output current 8.3A rms
Output power 30 minutes: 2,500W 10 minutes: 3,000W 3 seconds: 6,000W
Output Frequency 50Hz ±1%
Efficiency Pout = 200W: TBD% Pout = 2,000W: TBD% Ppeak: 92%
ENVIRONMENTAL
Operating temperature 0°C to 50°C ambient Continuous full load operation
Cooling Internal thermostatically controlled fan.
Relative Humidity 95% 40°C non-condensing
Shock 4G ±20% longitudinally 2G ±20% laterally 2G ±20% vertically 50ms duration 20 shocks per axis
Vibration Resonant search: 20 - 2.2mm double amplitude (1-9Hz) 2.2-0.8mm double amplitude (10-50Hz) Endurance: 3 hours per axis (X,Y,Z) at 50Hz 0.8mm double amplitude.
PROTECTION
Input protection 50A, AS3111, 20kA MCB Input Over / Undervoltage Cutout
Output overload and short circuit protection Automatic shutdown Auto restart after 60 secs
Output protection 10A, AS3111 / AS3190 6kA C-Curve MCB/RCD.   Output neutral connected to inverter chassis earth on inverter side of MCBO
Over temperature protection Automatic Shutdown
Dialectric Strength Input to Chassis: 1700Vdc Output to Chassis: 2250Vdc Input to Output: 4250Vdc
MECHANICAL PBSP-74O-PS
Mechanical Outline See Technical illustration
Construction Powder coated aluminum chassis.
Dimensions Length: 420mm Width: 230mm Height: 204mm
Weight 18kgs.
Mounting M8 hardware on 425 x 170mm centres
DC Input termination Spacecraft SCP02YJ22-2P F80 Three crimp pin chassis receptacle or equivalent. Olive drab cadmium finish.
DC Input connector Mating connector Spacecraft SCP08FJ22-2S F80 Right angle three crimp socket plug (3 x #8AWG / 10mm2) with cable clamp or equivalent. Olive drab cadmium finish.
AC Output termination Spacecraft SCP08YJ18-10S F80 Four crimp socket chassis receptacle or equivalent. Olive drab cadmium finish.
AC Output termination Mating connector Spacecraft SCP08FJ18-10P F80 Right angle four crimp socket plug (4 x #12AWG / 4mm2) with cable clamp or equivalent. Olive drab cadmium finish.
Chassis Earth Termination M6 x 15mm stud on bottom face.
Wiring All internal wiring uses Radox 125 halogen free low smoke cable.
Notes
1.Dielectric strength is tested for 1 minute with DC voltage. Testing with 50/60Hz AC voltage is not recommended due to voltages which this can induce in the circuitry under test. Internal EMC filter capacitors between input leads and chassis are disconnected during these tests. The internal output neutral to earth link must also be removed during these tests. Input to output dielectric strength is specified for internal components which bridge these connections only and cannot be tested on a finished unit.
2. DA denotes double amplitude.
3. Overall dimensions do not include connectors, circuit breakers or circuit breaker protection brackets.
Technical Illustrations
powerbox-pbsp-74i-series
INPUT (PRELIMINARY SPECIFICATIONS)
Input Voltage: 74Vdc (60-84Vdc)
Startup voltage 67Vdc
Under voltage cut-out 59Vdc.
Under voltage re-set 71Vdc.
Over voltage cut-out 90Vdc.
Over voltage re-set 87Vdc
Input Current Standby: 30mA ON with no load: TBD Pout = 2000W, Vin=74Vdc; 30A, Any load, 60V < Vin < 84Vdc; 37A max
DISPLAYS, CONTROLS & ALARMS
Front Panel Controls (-PS) DC Input 50A 10kA MCB AC Output 10A MCB/RCD
Right Side Controls (-PS) ON/OFF Toggle Switch
Right Side Displays (-PS) ON / Standby / Overload LED Overtemperature LED DC Volts Out of Range LED
OUTPUT
Output Voltage 240Vrms (237.5 - 242.5Vrms) 0W < Pout < 2000W, Vin = 74Vdc . (228 - 252Vrms) 0W < Pout < 2000W, 60V < Vin < 84Vdc
Total Harmonic Distortion 3% 0W < Pout < 2,000W, Vin = 74Vdc
Continuous output power 2,000W, Ta = 50°C, PF=1.0
Continuous output current 8.3A rms
Output power 30 minutes: 2,500W 10 minutes: 3,000W 3 seconds: 6,000W
Output Frequency 50Hz ±1%
Efficiency Pout = 200W: TBD% Pout = 2,000W: TBD% Ppeak: 92%
ENVIRONMENTAL
Operating temperature 0°C to 50°C ambient Continuous full load operation
Cooling Internal thermostatically controlled fan.
Relative Humidity 95% 40°C non-condensing
Shock 4G ±20% longitudinally 2G ±20% laterally 2G ±20% vertically 50ms duration 20 shocks per axis
Vibration Resonant search: 20 - 2.2mm double amplitude (1-9Hz) 2.2-0.8mm double amplitude (10-50Hz) Endurance: 3 hours per axis (X,Y,Z) at 50Hz 0.8mm double amplitude.
PROTECTION
Input protection 50A, AS3111, 20kA MCB Input Over / Undervoltage Cutout
Output overload and short circuit protection Automatic shutdown Auto restart after 60 secs
Output protection 10A, AS3111 / AS3190 6kA C-Curve MCB/RCD.   Output neutral connected to inverter chassis earth on inverter side of MCBO
Over temperature protection Automatic Shutdown
Dialectric Strength Input to Chassis: 1700Vdc Output to Chassis: 2250Vdc Input to Output: 4250Vdc
MECHANICAL PBSP-74O-PS
Mechanical Outline See Technical illustration
Construction Powder coated aluminum chassis.
Dimensions Length: 420mm Width: 230mm Height: 204mm
Weight 18kgs.
Mounting M8 hardware on 425 x 170mm centres
DC Input termination Spacecraft SCP02YJ22-2P F80 Three crimp pin chassis receptacle or equivalent. Olive drab cadmium finish.
DC Input connector Mating connector Spacecraft SCP08FJ22-2S F80 Right angle three crimp socket plug (3 x #8AWG / 10mm2) with cable clamp or equivalent. Olive drab cadmium finish.
AC Output termination Spacecraft SCP08YJ18-10S F80 Four crimp socket chassis receptacle or equivalent. Olive drab cadmium finish.
AC Output termination Mating connector Spacecraft SCP08FJ18-10P F80 Right angle four crimp socket plug (4 x #12AWG / 4mm2) with cable clamp or equivalent. Olive drab cadmium finish.
Chassis Earth Termination M6 x 15mm stud on bottom face.
Wiring All internal wiring uses Radox 125 halogen free low smoke cable.
Notes
1.Dielectric strength is tested for 1 minute with DC voltage. Testing with 50/60Hz AC voltage is not recommended due to voltages which this can induce in the circuitry under test. Internal EMC filter capacitors between input leads and chassis are disconnected during these tests. The internal output neutral to earth link must also be removed during these tests. Input to output dielectric strength is specified for internal components which bridge these connections only and cannot be tested on a finished unit.
2. DA denotes double amplitude.
3. Overall dimensions do not include connectors, circuit breakers or circuit breaker protection brackets.
powerbox-pbsp-74i-series

Find the Right Model

Model Number Input Voltage (Vdc) Output Voltage (Vac) Output Power (Va / kVA)
product variant PBSP-74I-PS 74Vdc: 60 - 84Vdc 240Vac 50Hz 2,500 VA (Cont.)

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