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EX3300 Power System

 

Power Supply in EX3300 Switches

The power supply in EX3300 switches is built in along the rear panel of the chassis, with an AC power cord inlet or DC power terminal block on the rear panel to connect power to the switch.

Note

After powering on the switch, wait for at least 60 seconds before powering it off. After powering off the switch, wait for at least 60 seconds before powering it back on.

After the switch has been powered on, it can take up to 60 seconds for status indicators—such as show chassis command output and messages on the LCD panel—to indicate that the power supply is functioning normally. Ignore error indicators that appear during the first 60 seconds.

Table 1 lists the power consumed by each EX3300 switch model. The maximum power available on a PoE+ port is 15.4 W.

Table 1: Power Consumed by EX3300 Switches

Model Number

Number of PoE-Enabled Ports

Maximum Power Consumed by the Switch

Maximum System Power Available for PoE

EX3300-24T

50 W

EX3300-24P

24

60 W (when no PoE power is drawn)

405 W

EX3300-24T-DC

50 W

EX3300-48T

76 W

EX3300-48T-BF

76 W

EX3300-48P

48

91 W (when no PoE power is drawn)

740 W

Power Specifications for EX3300 Switches

This topic describes the power supply electrical specifications for EX3300 switches.

Table 2 provides the AC power supply electrical specifications for EX3300 switches.

Table 3 provides the DC power supply electrical specifications for EX3300 switches.

Table 2: AC Power Supply Electrical Specifications for EX3300 Switches

Item

Specification

AC input voltage

100 through 240 VAC

AC input line frequency

50 Hz/60 Hz nominal

AC system current rating

  • 7 A at 100 VAC and 2.9 A at 230 VAC (for switches with ports enabled for PoE)

  • 1.8 A at 100 VAC and 0.5 A at 230 VAC (for switches with no ports enabled for PoE)

Table 3: DC Power Supply Electrical Specifications for EX3300 Switches

Item

Specification

DC input voltage

-43 through -75 VDC

DC input current

2 A maximum

Power supply output

100 W

Output holdup time

1 ms minimum

Note

For DC power supplies, we recommend that you provide at least 2.5 A at 48 VDC and use a facility circuit breaker rated for 10 A minimum. Doing so enables you to operate the switch in any configuration without upgrading the power infrastructure, and allows the switch to function at full capacity using multiple power supplies.

AC Power Cord Specifications for EX3300 Switches

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 at the male end of the power cord fits into the power source outlet that is standard for your geographical location.

Caution

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

Note

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.

Table 4 gives the AC power cord specifications for the countries and regions listed in the table.

Table 4: AC Power Cord Specifications

Country/Region

Electrical Specifications

Plug Standards

Juniper Model Number

Argentina

250 VAC, 10 A, 50 Hz

IRAM 2073 Type RA/3

CBL-EX-PWR-C13-AR

Australia

250 VAC, 10 A, 50 Hz

AS/NZZS 3112 Type SAA/3

CBL-EX-PWR-C13-AU

Brazil

250 VAC, 10 A, 50 Hz

NBR 14136 Type BR/3

CBL-EX-PWR-C13-BR

China

250 VAC, 10 A, 50 Hz

GB 1002-1996 Type PRC/3

CBL-EX-PWR-C13-CH

Europe (except Italy, Switzerland, and United Kingdom)

250 VAC, 10 A, 50 Hz

CEE (7) VII Type VIIG

CBL-EX-PWR-C13-EU

India

250 VAC, 10 A, 50 Hz

IS 1293 Type IND/3

CBL-EX-PWR-C13-IN

Israel

250 VAC, 10 A, 50 Hz

SI 32/1971 Type IL/3G

CBL-EX-PWR-C13-IL

Italy

250 VAC, 10 A, 50 Hz

CEI 23-16 Type I/3G

CBL-EX-PWR-C13-IT

Japan

125 VAC, 12 A, 50 Hz or 60 Hz

SS-00259 Type VCTF

CBL-EX-PWR-C13-JP

Korea

250 VAC, 10 A, 50 Hz or 60 Hz

CEE (7) VII Type VIIGK

CBL-EX-PWR-C13-KR

North America

125 VAC, 13 A, 60 Hz

NEMA 5-15 Type N5-15

CBL-EX-PWR-C13-US

South Africa

250 VAC, 10 A, 50 Hz

SABS 164/1:1992 Type ZA/13

CBL-EX-PWR-C13-SA

Switzerland

250 VAC, 10 A, 50 Hz

SEV 6534-2 Type 12G

CBL-EX-PWR-C13-SZ

Taiwan

125 VAC, 11 A and 15 A, 50 Hz

NEMA 5-15P Type N5-15P

CBL-EX-PWR-C13-TW

United Kingdom

250 VAC, 10 A, 50 Hz

BS 1363/A Type BS89/13

CBL-EX-PWR-C13-UK

Figure 1 illustrates the plug on the power cord for some of the countries or regions listed in Table 4.

Figure 1: AC Plug Types
AC Plug Types