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Platinum Switches

Indutrial Full Gigabit Hi-PoE L2 Managed Switch

Model KP-0402H4SMIUH

The KP-0402H4SMIUH industrial switch from the Platinum series is an all-Gigabit Layer 2 managed Hi-PoE switch engineered for harsh environments and industrial control panels.

  • POE 90W
  • Uplink Port SFP
  • CLI SSH

Overview

The KP-0402H4SMIUH industrial switch from the Platinum series is an all-Gigabit Layer 2 managed Hi-PoE switch engineered for harsh environments and industrial control panels. It has four Gigabit PoE ports (one 802.3bt port delivering up to 90 W and three 802.3at ports delivering up to 30 W) and two Gigabit SFP uplink ports, with 360 W of total output power. An all-aluminum DIN-rail housing, redundant dual power inputs and 12 Gbps of internal bandwidth ensure stable performance in critical projects.

Technical specifications

Datasheet (PDF)

Model: KP-0402H4SMIUH

Interfaces

Total Port
6 Ports
PoE Output (Max)
360 Watt
PoE Port Control
Realtek 8238B/8239B
Fast RJ45 PoE Port
N/A
Gigabit RJ45 PoE Port
4 Port Port 1 BT (Up to 90W) - Port 2~4 AT (Up to 30W)
Fast RJ45 Uplink Port
N/A
Gigabit RJ45 Uplink Port
N/A
Gigabit SFP Uplink Port
2
Combo Uplink Port
N/A

Feature

Security
Access IP List IEE 802.1 X MAB (MAC Authentication Bypass) / Radius Server Authentication Port Security SSH & HTTPS Login

Hardware

Processor Type
Realtek Industrial Type
LED Panel
Data Activity, PoE Activity, Power Activity, Redundant Activity
Main Board
Double Layer
Case
Aluminium Case
Mounting
DIN-Rail

General

Protection Rating
IP51
Web Language
English
Dimensions
170*145*64 mm
Weight
980 g
CPU Temperature Tolerance
Up To +130°C
Storage Temperature
-50°C ~ +95°C / 10% ~ 90% RH
Operating Temperature
-40°C ~ +80°C / 10% ~ 90% RH
Radiation Electromagnetic
EN55016

Network Performance

Standard
IEEE802.3ab IEEE802.3af IEEE802.3at (Up to 30Watt) IEEE802.3az IEEE802.3bt IEEE802.3u IEEE802.3x
Protocols
CSMA/CD
Router
N/A
Speed
Ethernet 10Mbps (half duplex), 20Mbps (full duplex); 10BASE-T: 14,880bps/port Fast Ethernet 100Mbps (half duplex), 200Mbps (full duplex); 100BASE-TX:14,8800bps/port Gigabit Ethernet 1000Mbps (half duplex), 2000Mbps (full duplex); 1000BASE-TX: 1488000bps/port
Cabling
1000 Base-TX: Cat 6 UTP or above (100m) 100Base-TX:Cat 6 UTP(120m) PoE=250M 10Base-TX: Cat 5 or above (250m) PoE=250M
Bandwidth
12Gb Internal Bandwidth
MAC Table
64Kb
Auto MDI
Yes All Ports
Console
Yes - Web & RS232 Layer2 Managment (Telnet / SSH/ CLI)
Transfer Pattern
Store & Forward

PD`S

IP Camera
Yes
IP Phone
Yes
(+)2/1,(
Yes

Power Supply

Power
DUAL Input - Redundant 48-54V - 2.5A
Redundant
Yes
LED Power
Yes
Power Cable
N/A

Guarantee

Product Guarantee
3 Years Platinum Guarantee
MTBF
100,000 hrs min. MIL-HDBK-217F (25°)

Downloads

Documentation

  • KP-0402H4SMIUH

    DatasheetPDF415.5 KB

Software and firmware

  • 0402H4SMIUH-Hw1-Old-Menu

    Version 04-KP-0402H4SMIUH-Hw1-Old-MenuIMG5.5 MBUpdated August 23, 2025

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Frequently asked questions: Network Switches

Answers to common questions about this product line, from the KDT Help Center.

Where should I start when choosing the right network switches?

Start by defining the intended use, the number of devices, the installation environment, the capacity required and your plans for future expansion. Then choose the model and technical specifications based on what the project actually needs.

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Which technical specifications matter most for network switches?

Depending on the project, the most important specifications are capacity, speed, compatibility, environmental ratings, management features and scalability. Basing your choice on a single figure is usually not enough.

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Is a cheaper network switch model always the right choice?

No. The purchase price is only one factor. You also need to consider reliability, features, service life, after-sales service and maintenance costs.

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How do I work out how much capacity a switched network needs?

Base the calculation on the number of devices, actual usage, how long the system will be in use and how much the project is likely to grow. It is also wise to keep some capacity in reserve.

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Can network switches be upgraded later?

In many cases, some of the capacity or equipment can be upgraded. However, this depends on the product's architecture and its hardware limitations, so check before you buy.

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Warranty

3-Year Platinum Warranty

This product comes with the official KDT warranty. Check your device’s warranty status with its serial number.

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