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PS5R Slim Line Power Supplies
144 www.IDEC.com
Temperature Derating Curves
All IDEC Slim Line power supplies are listed to UL508, which allows operation
at 100% capacity inside a panel. This eliminates the need to use oversize power
supplies or utilize two power supplies derated at 50% of their rated output.
The charts below show that the PS5R Slim 10W (at 60ºC) and 15W (at 60ºC),
30W/60W/90W (at 55ºC), 120W (at 40ºC), and 240W (at 45ºC) meet the
elevated, operating temperature required by UL508 and EN60950 standards to
operate at an output current of 100%. The output current starts to derate beyond
the required temperature.
PS5R-SB
–100 10 20 30 40 50 60 6555 70
0
10
20
30
40
50
60
70
80
90
100
Operating Temperature (°C)
Mounting B, C, D
Dearting curve for PS5R-SB varies depending on
mounting method (see right).
Mounting A
(standard)
Mounting B
(upright) PS5R-SC
55
-10 0 10 20 30 40 50 60 70
0
10
20
30
40
50
60
70
80
90
100
Operating Temperature (ºC)
Output Cuurent (%)
PS5R-SG
45
-10 0 10 20 30 40 50 60 70
0
10
20
30
40
50
60
70
80
90
100
Operating Temperature (ºC)
Output Cuurent (%)
Mounting C
(left side up)
Mounting D
(right side up)
PS5R-SD, -SE, -SF
-10 0 10 20 30 40 50 60 70
0
10
20
30
40
50
60
70
80
90
100
Operating Temperature (ºC)
PS5R-SE 90W/3.75A/24V DC versus a Leading Competitor
Standard derating curve (operating temperature vs. output current)
Leading Competitor
“24V/2.5A”
1.0
2.0
3.0
4.0
Currrent (A)
“Normal” Rating 2.5A
“Boost” Rating 3.75A
Don’t Believe the Hype
Other companies use slick marketing to sell you 60W power
supplies with a “BOOST,” but what they don’t tell you is that
these are merely 90W power supplies that have been renamed
to fool you into thinking they have a unique feature. IDEC 90W
power supplies are just what they claim, 90W power supplies.
The truth is IDEC led the market by incorporating UL508 DIN rail
mount power supplies as a standard product. Don’t let the other
guys pull a fast one on you by claiming to provide features that
just aren’t true, or even possible. See what IDEC has to offer, no
strings attached.
Overload Protection
Overload protection prevents the power supply from being damaged when an overload occurs. There are two kinds of protection.
24
Overcurrent Protection
PS5R-SF, -SG
Overcurrent Protection
When the output current exceeds
105% of the rated current, overload
protection is triggered, and the
output voltage starts decreasing.
When the output current returns
within the rated range, the overload
protection function is automatically
cleared. Overvoltage Protection
Overvoltage Protection
When the output voltage of the
power supply rises to 120% or more
of the rated value, the output will
shut off. To restore power, only
manual reset is available which is an
advantage in troubleshooting.
SEMI-F47 Approved
Voltage Sag Sliding Scale PS5R-SF, -SG
The SEMI F47 (Semiconductor Processing Equipment Voltage Sag Immunity) defines the minimum voltage sag
ride-through requirements for semiconductor processing, automated test equipment and other equipment. It
requires that the equipment be able to tolerate voltage sags on an AC power line without interrupting opera-
tions. This avoids the loss of production and money.
The graph shows how the equipment must tolerate sags to 50% for 200ms, sags to 70% for up to 0.5 seconds
and sags to 80% for up to 1 second.