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Compact metal box with four RJ45 ports, two SFP cages and DIN-rail clip

Black Box Corporation

Black Box LIE402A 4-port PoE++ DIN-rail network switch

SKU CH-BRVJ-9N89C MPN LIE402A

DIN-rail unmanaged switch with four PoE++ RJ-45 ports delivering up to 60 watts each plus two SFP uplinks for industrial networks

  • FormatDIN Rail Mount
  • StandardsIEEE 802.3; IEEE 802.3af (15.40 watts max); IEEE 802.3at (30
  • Network Management TypeUnmanaged
  • Primary Ports4 x RJ45 + 2 x SFP
  • Primary Port Speed10/100/1000Mbps
  • Primary Port Type4 x 10/100/1000-Mbps RJ-45 PoE++ 2 x 100/1000-Mbps SFP
  • Delivers up to 60 watts PoE++ per port for power-hungry devices
  • Four RJ-45 ports supply full PoE++ simultaneously without power budget limits
  • Two SFP slots accept 100BASE-X or 1000BASE-X transceivers for flexible fibre uplinks
  • DIN-rail clip included for quick mounting in industrial cabinets
  • Fanless design operates reliably from -40 to 75 °C

Industrial DIN-rail switch

The Black Box LIE402A is an unmanaged 4-port PoE++ switch designed for industrial networks. It mounts on a standard DIN rail and operates from a 46–57 VDC supply, delivering up to 60 watts per RJ-45 port. Two SFP slots accept 100 or 1000 Mbps fibre transceivers for uplink flexibility.

Installers needing rugged PoE++

This unit suits cabinet builders and automation engineers who must power cameras, wireless APs or sensors in harsh environments without a fan. The –40 to +75 °C range and vibration-resistant construction fit outdoor enclosures and factory floors. Sites that require managed features such as VLANs, SNMP or port mirroring should select a managed alternative.

60-watt PoE++ per port

The decisive specification is IEEE 802.3bt compliance with 60 watts available simultaneously on all four copper ports. A 56 VDC, 4.46 A source is required to sustain that budget. If connected devices need only 15.4 or 30 watts, the switch still negotiates the correct class automatically.

Highlights

  • Delivers up to 60 watts PoE++ per port for power-hungry devices
  • Four RJ-45 ports supply full PoE++ simultaneously without power budget limits
  • Two SFP slots accept 100BASE-X or 1000BASE-X transceivers for flexible fibre uplinks
  • DIN-rail clip included for quick mounting in industrial cabinets
  • Fanless design operates reliably from -40 to 75 °C

Specifications

BrandBlack Box
ModelLIE402A
FormatDIN Rail Mount
StandardsIEEE 802.3; IEEE 802.3af (15.40 watts max); IEEE 802.3at (30 watts max); IEEE 802.3bt (60 watts max)
Network Management TypeUnmanaged
Primary Ports4 x RJ45 + 2 x SFP
Primary Port Speed10/100/1000Mbps
Primary Port Type4 x 10/100/1000-Mbps RJ-45 PoE++
2 x 100/1000-Mbps SFP
PowerDC Power Requirements:
+46 to +57 VDC; inclusive of tolerance;
4.46A @ 56 VDC;
2 Pin Terminal (non-isolated)
FeaturesIEEE 802.3bt compliant with up to 60 watts of PoE power per port
Provides full PoE++ power simultaneously to all Ethernet RJ-45 ports
Supports 100BASE-X or 1000BASE-X SFP transceivers
DIN-rail mountable with included clip
Industrial (-40 to 75°C) operating temperature
Fanless design for long life and vibration resistance
Dimensions5.50" x 1.50" x 5.50"
Weight1.70 lbs.
TemperatureIndustrial: -40 to +167°F (-40 to +75°C)
Storage: -40 to +176°F (-40 to +80°C)
Humidity5 to 95% (non-condensing)
Package Contents(1) LIE402A Industrial Unmanaged Switch
(1) +/-46 TO +/-57 VDC Power Adapter
Shipping weight1.36 kg
Package size203 × 152 × 102 mm

Questions about this item

Will the LIE402A power my existing IEEE 802.3af cameras that only draw 15.40 watts alongside newer PoE++ devices?

Yes, the switch complies with IEEE 802.3af, IEEE 802.3at and IEEE 802.3bt, so each RJ-45 port negotiates the correct class and delivers up to 60 watts while safely supplying 15.40-watt legacy gear.

How do I confirm the switch is forwarding traffic and supplying PoE++ on all four RJ-45 ports after mounting it on the DIN rail?

Connect powered devices to each port; the port LEDs will show link and PoE status, and the fanless unit will operate silently within its -40 to 75°C industrial range.

Does the package include SFP transceivers for the two 100/1000-Mbps SFP slots, or must I buy them separately?

The box contains the LIE402A switch, a +/-46 to +/-57 VDC power adapter and a DIN-rail clip; SFP transceivers are not included and must be purchased separately.

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