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Power Supply in the CTP151 Device

The CTP151 device uses a fixed, internal AC power supply. The power supply distributes different output voltages to the device components according to their voltage requirements. The power supply is fixed in the chassis and is not field-replaceable.

The power supply has a single AC appliance inlet that requires a dedicated AC power feed. The AC power cord inlet is on the rear panel of the device.

Table 1 describes the AC power specifications for a CTP151 device.

Table 1: AC Power Specifications for a CTP151 Device

AC Input Voltage (Operating Range)

AC Input Line Frequency

AC Input Current Rating

Maximum Power Consumption

Power Supply Type

100–240 VAC

50–60 Hz nominal

1.8 A maximum

150 W


A detachable AC power cord is supplied with the AC power supplies. The coupler is type C13 as described by International Electrotechnical Commission (IEC) standard 60320. The plug end of the power cord fits into the power source outlet that is standard for your geographical location.


The AC power cord provided with each power supply is intended for use with that power supply only and not for any other use.


In North America, AC power cords must not exceed 4.5 meters in length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52 and Canadian Electrical Code (CEC) Section 4-010(3). The cords supplied with the switch are in compliance.