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Black rectangular power supply unit with terminal block inputs and ventilation slots

Black Box Corporation

Black Box Corporation LE2700LV-PS 4-Slot 44W 20-72VDC Power Supply

SKU CH-EK8H-ZY6S2 MPN LE2700LV-PS

Adds backup power to a modular switch chassis with dual 20-72 VDC input, 44 W maximum load and overload protection

  • Product typePower Supply
  • Product colorBlack
  • DetailsApprovals: CE, UL Recognized Component Mark E183223, TUV Pow
  • Key featuresAdd backup power to your Modular Switch chassis with this du
  • Adds backup power to modular switch chassis with dual 20-72 VDC input
  • Delivers 12 VDC at 4.2 A for 50 W output capacity
  • Handles maximum load of 44 W with built-in overload protection
  • Certified with CE, UL Recognized Component Mark E183223 and TUV approvals
  • Compact 4-slot design fits Black Box LE2700 series installations

Backup Power for Modular Switches

The Black Box LE2700LV-PS is a low-voltage power supply designed to add redundant backup power to a modular switch chassis. It accepts a dual 20-72 VDC input range and delivers a regulated 12 VDC output at 4.2 A. The unit mounts in a four-slot form factor and is finished in black.

Input Range and Protection Limits

The supply operates from a 20-72 VDC source drawing approximately 1.3 A, while the input terminal block is rated for 2.2 A. Overload protection is built in to guard the chassis against excessive current draw. The maximum continuous load the unit can sustain is 44 W, which is lower than the 50 W output rating listed for the 12 V rail.

Maximum Continuous Load of 44 W

The 44 W ceiling determines whether this supply can support a given switch configuration. Builders whose chassis and modules draw more than 44 W under full load cannot use this unit as a reliable backup. Buyers who need higher reserve capacity for larger modular systems will need a different power supply.

How it compares

Measured against everything we stock in Patch Panels, PoE & LAN Adapters, at today’s prices. Recalculated every night.

Price $162.99
Pricier than about 74% of the 559 comparable items (median $56.99).

Specifications

Product
Brand nameBlack Box
Model nameLE2700LV-PS
Product typePower Supply
Product colorBlack
Size & build
Shipping weight0.91 kg
Package size203 × 152 × 102 mm

Questions about this item

Which LE2700LV-PS power supply capacity should I select for my modular switch chassis?

The LE2700LV-PS is a single 44 W, 4-slot unit rated for 20-72 VDC input and 12 VDC, 4.2 A output.

What does the 44 W maximum load mean when the supply is installed in a switch?

It limits total chassis draw to 44 W; the supply delivers up to 12 VDC at 4.2 A with overload protection.

What DC input range does the terminal block accept and what output does it provide?

The terminal block accepts 20-72 VDC at up to 1.3 A and provides 12 VDC at 4.2 A (50 W rated).

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