Supply
|
| AC Input voltage |
nominal 110 to 240 Vac (±10%), with frequency range 48 to 62 Hz. |
| Power Factor Correction (AC input) |
0.98 typ.@230Vac, 0.995 typ.@115Vac full load (for each PSM1250 module). |
| Efficiency @24Vdc out (full load) |
better than 89 % @ 230 Vac and 86% @ 115 Vac (for each PSM1250 module). |
| Max. internal power dissipation @24Vdc out (full load) |
150 W @ 230 Vac; 195 W @ 115 Vac (for each PSM1250 module). |
| AC input current (sinusoidal at full load) @24Vdc out |
14.2A @100Vac input voltage, 12.2 A @115 Vac input voltage, 6.1 A @230 Vac input voltage (for each PSM1250 module). |
| Inrush current |
37 A peak @ 264 Vac; 32 A peak @ 230 Vac; 16 A peak @ 115 Vac (for each PSM1250 module). |
| AC input connection |
screw terminal blocks suitable for 4mm2 wires on back panel pcb. |
Isolation
|
| Input to Output isolation |
2500 Vrms (routine test). |
| Input to Earth-Ground isolation |
1500 Vrms (routine test). |
| Earth-Ground to Output isolation |
500 Vrms (routine test). |
| Output or Earth-Ground to Fault contact isolation |
500 Vrms (routine test) |
Output
|
| Voltage |
24 Vdc (adjustable from 21 to 28 Vdc). |
| Regulation |
0.4 % for a 100 % load change. |
| Stability |
0.01 % for a 20 % line voltage change. |
| Ripple |
≤ 250 mVpp. |
| Output current |
50 A nominal (@24Vdc out) (for each PSM1250 module). Parallel connection for redundancy with load sharing capability within ±5 % of output voltage setting. |
| Output power |
up to 1300 W nominal (@28Vdc out) (for each PSM1250 module). |
| Output Rise Time |
2.5 s. |
| Dynamic Response |
2 ms for 0-100% load change (overshoot ±1.5% of Vout setting). |
| Connection |
M6 screw terminals on copper bars suitable for lug (at least 6.5 mm hole diameter) with 16mm2 wire on back panel pcb. |
| Hold-up time at full load |
20 ms (AC input) (for each PSM1250 module). |
| Over voltage protection |
output limited to 30 Vdc plus two redundant crowbars for over voltage protection at 30 Vdc (for each PSM1250 module). |
Power good signaling
|
| Output good |
19.5 V ≤ Vout ≤ 29.5 V. |
| Indication |
via LCD screen on PSO1250 and Modbus RTU RS-485 protocol. |
| Signaling |
voltage free SPST normally energized relay (contact closed), de-energize in over/under voltage conditions (contact open) (for each PSM1250 module). |
| Contact rating |
2 A 50 Vac 100 VA, 2 A 24 Vdc 48 W (resistive load). |
| Connection |
screw terminal blocks suitable for 1.5 mm2 wires on back panel pcb. |
Environmental conditions
|
| Operating temperature limits |
-40 to +70°C de-rated linearly 65-70% load above 50°C. |
| Relative humidity limits |
95 %, up to 55 °C. |
| Transport, storage temperature limits |
– 45 to + 85 °C. |
| Max altitude |
2000 m a.s.l. |
Mechanical
|
| Mounting |
7” or 9” or 19” Rack unit, 4 units high. 7” or 9” Rack unit for wall mounting, into a cabinet. 19” Rack unit for wall mounting or for frontal rack mounting, into a cabinet. |
| Weight |
7” fully equipped about 7 Kg, fully equipped with 2 PSM1250. 9” fully equipped about 10 Kg, fully equipped with 2 PSM1250 and 1 PSO1250 module. 19” fully equipped about 24 Kg, fully equipped with 6 PSM1250 and 1 PSO1250 module. |
| Location |
installation in Safe Area/Non Hazardous Locations or Zone 2, Group IIC T4 or Class I, Division 2, Group A,B,C,D, T4. |
| Protection class |
IP 20, Open Type. |
| Dimensions |
Width 482 mm, Depth 360 mm, Height 237.30 mm (PSS1250-HS-7-1/2/3/4-D & PSS1250-7-1/2/3/4-D) . Width 442.20 mm, Depth 368.88 mm, Height 242 mm (PSS1250-HS-7-6/7/8/9-D & PSS1250-7-6/7/8/9-D) . Width 238 mm, Depth 360 mm, Height 237.30 mm (PSS1250-HS-3-D & PSS1250-3-D). Width 178 mm, Depth 360 mm, Height 237.30 mm (PSS1250-HS-2 & PSS1250-2). |
