Powerbox PB315 Headlight Controller - Railway
The Powerbox PB315 Headlight Controller is a robust 626W solution designed to manage locomotive headlights with precision and reliability. Built to control two GE350PAR56/SP-75 sealed beam headlights, it ensures optimal performance under the harsh conditions of rolling stock operations. Key features include compatibility with EN50155 and EN50121...
Read MoreThe Powerbox PB315 Headlight Controller is a robust 626W solution designed to manage locomotive headlights with precision and reliability. Built to control two GE350PAR56/SP-75 sealed beam headlights, it ensures optimal performance under the harsh conditions of rolling stock operations.
Key features include compatibility with EN50155 and EN50121 standards, natural convection cooling without the need for additional heatsinking, and ruggedised protection against dust, moisture, and vibration. With high efficiency (93%) and a robust IP40-rated chassis, the PB315 ensures long-lasting performance in demanding railway environments.
This controller supports both high beam (68Vdc, 9.2A) and low beam outputs (32Vdc or 25Vdc), with advanced protections including overcurrent, short circuit, and overvoltage safeguards. Its wide input range (72Vin: 45-101Vdc, 110Vin: 66-154Vdc) makes it suitable for various locomotive power systems.
The Powerbox PB315 Headlight Controller is the ideal choice for railway applications requiring reliable and efficient headlight control.
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Features
- 626W
- 72V & 110VDC Inputs
- Rail DC / DC Converter
- Controls Two Locomotive Sealed Beam Headlights
- High Temp Operation
- Ruggedised Shock and Vibration
- EN50155 & EN50121
Specifications
| INPUT | |
|---|---|
| Input voltage | 72Vin (45-101Vdc) or 110Vin (66-154Vdc) |
| Input current | 16A at 72Vin, 12A at 110Vin |
| Inrush Current | 16A at 72Vin, 25A at 110Vin |
| DC ripple factor | 15% |
| OUTPUT | |
|---|---|
| Voltage | High beam = 68Vdc, Low beam 72Vin = 32Vdc, Low beam 110Vin = 25Vdc |
| Current | High beam = 9.2A, Low beam 72Vin = 6.6A, Low Low beam 110Vin = 6.0A |
| Continuous power | 626W max |
| Ripple voltage | 200mV p-p |
| Line regulation | 0.5% at full load |
| Load regulation | 1.5% from 0 to full load |
| OPERATION | |
|---|---|
| Efficiency | 93% at full load typical |
| Power dissipated | 50W at full load typical |
| Isolation | Input to Chassis - 2400Vdc Input to Output – 3800Vdc Output to Chassis – 750Vdc |
| Temperature | Up to 50C ambient at full load. Derate linearly from 50C full load to 80C zero load |
| Cooling | Natural convection. No additional cold plate or heatsinking required |
| PROTECTION | |
|---|---|
| Input reverse polarity | Indefinite. Series diode on input |
| High input ripple | Indefinite. Series diode on input |
| Input overvoltage | Approx 108Vdc for 72Vin, 168Vdc for 110Vin, Auto Recovery |
| Output overcurrent | 115% of nominal. Auto recovery |
| Output short circuit | Indefinite. Auto recovery |
| Output overvoltage | 125% nominal, Input cycled off & on to reset |
| Over temperature | 105C internal temperature. Auto restart |
| Pollution protection | PD3 as per IEC60077-1 |
| Ingress protection | IP40 as per AS1939 |
| Rated inpulse withstand volts | Input 2.5kV, Output 0.8kV as per IEC60077-1 |
| CONTROLS AND ALARMS | |
|---|---|
| High/low beam | High beam for control signal < 20Vdc Low beam for 20Vdc < control signal < 154Vdc |
| On/Off (for 110Vin only) | Unit disabled for control signal < 20Vdc Unit enabled for 20V < control signal < 154Vdc |
| Headlight Fail | Volt free contact closes under failure conditions |
| MECHANICAL | |
|---|---|
| Enclosure | Chassis Mount Aluminium |
| Dimensions | 322L x 150W x 102H including heatsink |
| Weight | 4.0 kg |
| Terminations | Screw Terminals as standard. Other terminals such as Cage Clamp, Fastons available on request |
| STANDARDS | |
|---|---|
| Safety | Meets IEC60077-1, AS/NZS 60950-2000 |
| EMC / EMI | Meets EN50121-3-2:2000 and EN50155 |
| Electrical service conditions | Meets EN50155 |
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.