IM08302001E
Rev 02
Page 2
Effective: March 2004
PS256B-01B1 PS256B-04B1 (-05B1)
1
Input Power
144W, Maximum inrush 30A from cold start
Input Voltage
100 - 250 V AC
Input Current (Maximum)
115V AC - 2A, 230 V AC - 1A
Output Voltage
27V DC
Output Power
100W
Output Protection
Short circuit, overload and overvoltage protection (cycle input power to reset)
Regulation
+
/- 3%
Release Input
15 - 30V DC; 90-132V AC
Release Output
Sinking or Sourcing, switch selectable;
100 mA maximum; short circuit
protected (cycle power to reset)
2
Indicators
Red LED: AC In; Green LED: DC Out
Power Monitor
Solid state relay; 400V isolation; 132V AC/DC maximum switching voltage; 80 mA current switching
capacity; 10 mA maximum off-state leakage; 25 ohms on-state resistance; N.O. contact; contacts
open when DC power fails.
Temperature Range
-13° to 131°F (-25° to 55°C)
Enclosure Material
Aluminum
Enclosure Rating
NEMA 4
Sinking only; 3.7A maximum current short circuit, over-
load & overvoltage protection (cycle power to reset)
1 & 2
SPECIFICATIONS
1
NOTE: Total maximum output of supply is 100W. Total supply (100 Watts) = main output power + release output power.
2
NOTE: The power supply may require several minutes off to reset, depending on the severity of the overload.
APPROXIMATE DIMENSIONS
3
WIRING DIAGRAM
3
NOTE: On model PS256B-05B1 a single 12mm DC key threaded micro-connector is mounted to the side of the junction box, as shown.
4
NOTE: Install jumper for single power supply systems. In systems where multiple power supplies are connected to a DC bus, install the jumper in only
one supply.
Chassis
Ground
Jumper
4
Input Power
90-264VAC, Single
Phase, 47-63 Hz
Release
Out
SO
GND
SO
Release
Out
+27
VDC
GND
+27
VDC
AC Input
AC
CHS
S1
S2
H1
H2
90-264VAC
Release In
Power Monitor
80 mA max.
15-132 V
AC/DC
AC
Output Power
27 VDC, 3.6A,
100W max.
On/Off Switch
Gasketed cover
(both ends)
Mounting holes
on both ends
5.75
(146)
5.75 (146)
3.0 (76)
7.9
(200)
6.74 (171)
on center
3.7
(94)
05B1 only