RAILWAY CONVERTERS PB169/253/254 1 0 0 - 1 3 8 W AT T S R A I LW AY D C / D C C O N V E R T E R S Features • • • • Input reverse polarity protected. Input transient protected. Input surge protection. Meets IEC571, BRB12, BRB13 and BRB18 for input transients and surges SPECIFICATIONS INPUT Voltage Input ripple voltage Input reverse polarity protection OPERATING PB169: PB253: PB254: 20-30Vdc. 18-50Vdc. 74-138Vdc. 30% of Vin 800V indefinitely. Output current Output power Line & load regulation 468 PB169: PB253: PB254: PB169: PB253: 24Vdc. 24Vdc. 13.8Vdc. 4.2A. 2.9A for VIN=18-50Vdc 4.2A: VIN=20-30Vdc PB254: 10A. PB169: 100W. PB253: 100W. PB254: 138W. ±0.36Vdc (PB169/253). ±0.10Vdc (PB254). 73%–80% Isolation Input – Output: 1000VAC (with VR1 & VR2 removed) Input – Ground: 1000VAC Output – Ground: 500VAC ENVIRONMENTAL Operating Temperature OUTPUT Output voltage Efficiency at full load -20°C to 45°C (PB169, PB253). -10°C to 60°C (PB254). STANDARDS Input transient and surge protection Designed to meet BRB 12, BRB 13, BRB 18 and IEC571-1. MECHANICAL Connections 6-way terminal block connector Dimensions PB169: 60 x 111x 177mm. PB253: 60 x 111 x 177mm. PB254: 60 X 111 X 205mm Mounting Four M4 slots Doc. No. PBC9 Rev.C 28-4-11