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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

  • ColorBlack
  • SpecificationService Voltage: 48 V MCOV: 64 V Clamping Voltage: 72 V Prot
  • FeaturesProtects power, video and data PoE circuits RJ45 connection
  • Unit Dimensions1.70" x 3.00" x 1.20"
  • Unit Weight0.25 lb.
  • 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.

Highlights

  • 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

Specifications

BrandDITEK
ModelDTK-MRJPOE
ColorBlack
SpecificationService Voltage: 48 V
MCOV: 64 V
Clamping Voltage: 72 V
Protection Modes: Line-Ground (All); All 8 pins are protected
Surge Current Rating: 30 A / pair
Max. Continuous Current: 1.5 A
Power Handling: 72 Watts / pair ; 144 Watts / port
Data Rate: Gigabit Ethernet
Dissipation: 3000 W / pair (10/1000 µs impulse)
FeaturesProtects power, video and data PoE circuits
RJ45 connection with external grounding screw
Gigabit Ethernet data speed without signal degradation
Compatible with CAT5e, CAT6 and CAT6A cabling infrastructure
Complies with IEEE Std. 802.3af and 802.3 at for PoE
Available as a single device or 12-Port, 1U Rack Mount (DTK-RM12POE)
PoE Plus, HiPoE ready for high-wattage applications
Unit Dimensions1.70" x 3.00" x 1.20"
Unit Weight0.25 lb.
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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