Will this protect poe++ or just poe+?

From the manufacturer's website Nominal PoE Voltage <60 V Maximum continuous current 1.2 A Therefore you should be able to get 60 watts continuous, or Type 3 PoE++

What is a "gas discharge tube", and what is its function in this device?

A gas discharge tube is basically a over voltage protector. It is an open circuit until impinging high voltage enters an ionizes the gas inside which creates a low impedance presumably to ground. Only useful in a lightning incident (nearby or direct hit). If the latter then you are fundamentally screwed. I have photos to probe it. Message: if lightning is near (or predicted) then simply disconnect everything. Let us ALL float. I’m talking antennas, AC power cord and ground wires

Does this device support 24v passive poe?

YES , this will easily support 24volt passive or non-passive POE. Normally POE is 48volts on power injectors or network switches. I know that it will support over 60 volts, as to smart 3 lens outdoor cameras that i have installed at Banks. This is , if you ground the DIN rail correctly to allow gas discharge tube to function properly to protect equipment. Gas discharge tube opens and closes data circuit, with no ground it will just act as a fuse and burn up after lightning strike. I always use TWO ethernet surge protectors , one on network switch rack and one upon entry into building with both TWO DIN rails grounded. Daniels Data Inc. - Dallas,TX - John Daniels

How long of a rail do you need? What is the shortest length that I can use?

It mounts perpendicular to the dinrail so about 1” is minimum. I’d use enough too have two acres in the rail though or it will rotate.

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DIN Rail Ethernet Surge Protector - Tupavco TP309

Q: What is a "gas discharge tube", and what is its function in this device?

A gas discharge tube is basically a over voltage protector. It is an open circuit until impinging high voltage enters an ionizes the gas inside which creates a low impedance presumably to ground. Only useful in a lightning incident (nearby or direct hit). If the latter then you are fundamentally screwed. I have photos to probe it. Message: if lightning is near (or predicted) then simply disconnect everything. Let us ALL float. I’m talking antennas, AC power cord and ground wires

Q: Does this device support 24v passive poe?

YES , this will easily support 24volt passive or non-passive POE. Normally POE is 48volts on power injectors or network switches. I know that it will support over 60 volts, as to smart 3 lens outdoor cameras that i have installed at Banks. This is , if you ground the DIN rail correctly to allow gas discharge tube to function properly to protect equipment. Gas discharge tube opens and closes data circuit, with no ground it will just act as a fuse and burn up after lightning strike. I always use TWO ethernet surge protectors , one on network switch rack and one upon entry into building with both TWO DIN rails grounded. Daniels Data Inc. - Dallas,TX - John Daniels

Q: How long of a rail do you need? What is the shortest length that I can use?

It mounts perpendicular to the dinrail so about 1” is minimum. I’d use enough too have two acres in the rail though or it will rotate.

Product ID: 110057903

Details

Brand
Tupavco
Color
Black 67
Compatible Devices
Router Modem
Connectivity Technology
Ethernet
Frequency Band Class
Dual-Band
Included Components
DIN rail

⚡5KA surge current rating

🔌Gigabit PoE+ 1000 Mbps Ethernet

🌩️Gas Discharge Tube lightning suppression

MOP$491

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Description

⚡ Protect your network like a pro—because downtime is so last decade!

SEAMLESS GIGABIT SPEED - Supports full 1000 Mbps PoE+ for uninterrupted high-speed data flow
ROCK SOLID NETWORK DEFENSE - 5KA surge capacity shields your gear from power spikes and lightning strikes
EFFORTLESS DIN RAIL MOUNTING - Quick clip-on design fits standard 19-inch racks for professional setups
UNIVERSAL DEVICE COMPATIBILITY - Perfect for routers, modems, cameras, and switches—future-proof your network
BIDIRECTIONAL CLAMPING PROTECTION - Safeguards both line-to-line and line-to-ground for comprehensive coverage

The Tupavco TP309 DIN Rail Ethernet Surge Protector delivers robust 5KA surge protection with advanced Gas Discharge Tube technology, ensuring your PoE+ and Gigabit Ethernet devices stay safe from lightning and voltage spikes. Designed for easy DIN rail mounting, it supports 1000 Mbps data transfer and bidirectional clamping, making it an essential safeguard for professional network environments.

Specifications

ASIN	B078NKGPJC
Antenna Location	Networking Equipment Protection
Best Sellers Rank	#60,216 in Electronics ( See Top 100 in Electronics ) #498 in Surge Protectors
Brand	Tupavco
Built-In Media	DIN rail mounting hardware
Color	Black 67
Compatible Devices	Router, Modem
Connectivity Protocol	Ethernet
Connectivity Technology	Ethernet
Control Method	Touch
Controller Type	Switch
Coverage	Power surges, lightning strikes, voltage spikes
Customer Reviews	4.1 4.1 out of 5 stars (89)
Data Transfer Rate	1000 gigabits_per_second
Frequency	5 GHz
Frequency Band Class	Dual-Band
Item Highlight	PoE+ and Gigabit (1000 Mbps) compatibility, easily clips onto 19 in rack or DIN rail
LAN Port Bandwidth	10/100/1000 megabits_per_second
Manufacturer	Tupavco
Maximum Upstream Data Transfer Rate	1000 megabits_per_second
Mfr Part Number	TP309
Model Name	TP309
Model Number	TP309
Number of Ports	4
Other Special Features of the Product	DIN Mount, POE+ Gigabit
Router Network Type	Wired
UPC	638362929471
Unit Count	1 Count
Wireless Compability	802.11ac

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MOP$491

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Macau.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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