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Black RJ45 PoE surge protector with grounding screw

DITEK

DITEK DTK-MRJPOE PoE Surge Protector RJ45 CAT5e

SKU CH-3NCD-G5VXB

Protects PoE power, video and data circuits over RJ45 with 30 A per pair surge rating and 48 V service voltage

  • Spec summaryService Voltage: 48 V MCOV: 64 V Clamping Voltage: 72 V Prot
  • Product dimensions1.7 in × 3 in × 1.2 in
  • Product weight0.25 lb (0.11 kg)
  • Product colorBlack
  • Key featuresProtects power, video and data PoE circuits RJ45 connection
  • Protects PoE power, video and data circuits with multi-stage SAD hybrid design
  • RJ45 connection and external grounding screw for simple installation
  • Gigabit Ethernet speed without signal degradation on CAT5e, CAT6 and CAT6A cabling
  • Complies with IEEE 802.3af and 802.3at for PoE and PoE Plus applications
  • Clamps surges at 72 V with 30 A per pair rating for reliable protection

PoE Surge Protector RJ45 CAT5e

The DITEK DTK-MRJPOE safeguards Power over Ethernet circuits carrying power, video and data. It is built for installers protecting network cameras, access points or VoIP equipment fed through a single RJ45 run. The unit installs inline and provides an external grounding screw for a solid earth reference. Buyers who need fibre-optic isolation or coaxial protection should look elsewhere.

48 V service voltage with 72 V clamping

The protector operates at a 48 V service voltage and clamps transients at 72 V with a 64 V maximum continuous operating voltage. All eight conductors are guarded in a line-to-ground configuration rated at 30 A per pair. Gigabit Ethernet passes through without signal degradation and the device complies with IEEE 802.3af and 802.3at for PoE and PoE Plus. It does not support non-standard passive PoE voltages beyond the rated range.

72 W per pair continuous power handling

Each pair handles up to 72 W continuously at 1.5 A, allowing sustained delivery to high-wattage PoE Plus and HiPoE loads. The multi-stage hybrid design absorbs repeated surges without adding resistance to the circuit. The compact black housing measures 1.70 x 3.00 x 1.20 inches and weighs 0.25 lb. Installations requiring higher surge current ratings or DIN-rail mounting will need a different form factor.

How it compares

Measured against everything we stock in Surge Protector Power Strips, at today’s prices. Recalculated every night.

Price $56.99
Pricier than about 70% of the 565 comparable items (median $37.99).

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Specifications

Product
Brand nameDITEK
Model nameDTK-MRJPOE
Product colorBlack
Size & build
Product dimensions1.7 in × 3 in × 1.2 in
Product weight0.25 lb (0.11 kg)
Shipping weight2.27 kg
Package size254 × 254 × 254 mm

Questions about this item

How does the 72 V clamping voltage protect my PoE device once installed?

The protector limits transient spikes to 72 V, keeping the 48 V PoE supply and connected equipment below their damage threshold.

What does IEEE 802.3af/at compliance mean for the RJ45 link speed?

It guarantees full Gigabit Ethernet throughput while passing up to 72 W per pair without signal degradation.

What physical space and grounding does the unit need for mounting?

It measures 1.70" x 3.00" x 1.20", weighs 0.25 lb, and requires a ground wire on the external grounding screw.

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