SRX345 Power System

The SRX345 Firewall is available with either a single AC power supply (Junos OS Release 15.1X49-D35 and later), dual AC power supplies (Junos OS Release 15.1X49-D110 and later), or a single DC power supply (Junos OS Release 17.4R1 and later). The power supply distributes the different output voltages to the device components according to their voltage requirements. The power supply is fixed in the chassis and is not a field-replaceable unit.

To identify the SRX345 model, check the Description field in the output of the show chassis hardware command.

The following are sample outputs for the different SRX345 models.

• SRX345 with single AC power supply

• SRX345 with single DC power supply

• SRX345 with dual AC power supplies

  If one power supply on an SRX345 (with dual AC power supplies) fails, the remaining power supply redistributes the electrical load without interruption.

The AC power system electrical specifications for the SRX345 Firewall are listed in Table 1.

Table 1: Power System Electrical Specifications for the SRX345 Firewall (AC Models)

Power Requirement	Specification
AC input voltage	100 to 240 VAC
AC input line frequency	50 to 60 Hz
AC system current rating	1 to 1.5 A
Maximum AC inrush current	7.3 A at 220 V/50 Hz (with four Mini-PIMs installed)

Warning:

The AC power cord for the services gateway is intended for use with the device only and not for any other use.

The DC power system electrical specifications for the SRX345 Firewall are listed in Table 2.

Table 2: Power System Electrical Specifications for the SRX345 Firewall (DC Model)

Power Requirement	Specification
Rated DC voltage range	–48 to –60 VDC (with -15% and +20% tolerance)
Operating voltage range	–40.8 to –72 VDC
DC system current rating	6 A at –48 VDC
DC output	12 V@150W

Warning:

The AC power cord for the services gateway is intended for use with the services gateway only and not for any other use.

Note:

In North America, AC power cords must not exceed 4.5 m (approximately 14.75 ft) in length, to comply with National Electrical code (NEC) Section 400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical Code (CEC) Section 4-010(3).

Table 3 provides power cord specifications, and Figure 1 depicts the plug on the AC power cord provided for each country or region.

Table 3: AC Power Cord Specifications

Country	Electrical Specification	Plug Standards
Australia	250 VAC, 10 A, 50 Hz	AS/NZ 3112-1993
China	250 VAC, 10 A, 50 Hz	GB2099.1 1996 and GB 1002 1996 (CH1-10P)
Europe (except Italy and United Kingdom)	250 VAC, 10 A, 50 Hz	CEE (7) VII
Italy	250 VAC, 10 A, 50 Hz	CEI 23-16/VII
Japan	125 VAC, 12 A, 50 or 60 Hz	JIS 8303
North America	125 VAC, 10 A, 60 Hz	NEMA 5-15
United Kingdom	250 VAC, 10 A, 50 Hz	BS 1363A

Note:

Power cords and cables must not block access to services gateway components or drape where people might trip on them.