Product specifications

Data Sheet
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Table 4 lists the power supply compatibility matrix for all different models of Cisco Catalyst 3750-E
Series Switches.
Table 4. Power Supply Compatibility Matrix
Cisco Catalyst 3750-E Series
Switch Type
Power Supply
C3K-PWR-
1150WAC
C3K-PWR-
750WAC
C3K-PWR-
265WAC
C3K-PWR-
265WDC
48-Port PoE Switch X X
24-Port PoE Switch X X
48-Port Switch X X X X
24-Port Switch X X X X
RPS 2300 X X
Table 5 lists the power specifications for the Cisco Catalyst 3750-E Series based on the kind of
power supply used.
Table 5. Power Specifications
Description Specification
C3K-PWR-
1150WAC
C3K-PWR-
750WAC
C3K-PWR-
265WAC
C3K-PWR-
265WDC
Power Supply Rated Maximum 1150W 750W 265W 265W
Total Output BTU (Note: 1000
BTU/hr = 293W)
3939 BTU/hr,
1150W
2568 BTU/hr,
765W
907BTU/hr,
265W
907BTU/hr,
265W
Input-Voltage Range and
Frequency
115–240VAC,
50–60 Hz
100–240VAC,
50–60 Hz
100–240VAC,
50–60 Hz
-36VDC to -
72VDC
Input Current 12–6A 10–5A 5–2.5A <5A@-72VDC
<10A@-36VDC
Output Ratings 12V@25A
–52V@16.4A
12V@25A
–52V@8.75A
12V@22A 12V@22A
Output Holdup Time 20 ms minimum 20 ms minimum 20 ms minimum > 2ms@-48VDC
Power-Supply Input
Receptacles
IEC 320-C13
(IEC60320-C19)
IEC 320-C13
(IEC60320-C13)
IEC 320-C13
(IEC60320-C13)
Power Cord Rating 15A 15A 15A 12A@-100VDC
Description Specifications
WS-C3750E-
48PD-SF
WS-C3750E-
24PD-S
WS-C3750E-
48PD-S
WS-C3750E-
24TD-S
WS-C3750E-
48TD-S
C3K-PWR-
1150WAC
C3K-PWR-
750WAC
C3K-PWR-
750WAC
C3K-PWR-
265WAC
C3K-PWR-
265WAC
100% Throughput
Measured Power
Consumption
152W 101W 131W 99W 149W
Measured Output
BTU/hr
516 344 445 338 506
5% Throughput
Measured Power
Consumption
142W 97W 124W 96W 140W
Measured Output
BTU/hr
482 331 420 326 475