
* The highest degree of temperature operation certified by UL is -40˚C~75˚C (-40°F~167°F), DNV is (Class D) -25°C~70°C (-13°F~158°F)
* The nominal voltage of 24VDC for DNV type approval is specified
* The switch enclosure is designed to meet IP40 ingress protection, while the device is DNV type approved with an ingress protection rating of IP20









INS-8405EM is an unmanaged industrial Gigabit Ethernet switch, with 5 auto-negotiation 10/100/1000Mbps downlink ports for expansion of Ethernet networks. This unmanaged switch can connect to different devices, including managed switches and monitoring systems.
The switch offers various in-built traffic optimization and network performance features to prioritize important industrial data packets, prevent the loss of data during communication, and stable transmission; like flow and storm control and VLAN Passthru. It prioritizes industrial protocols for industrial applications, like Ethernet/IP, PROFINET, and GOOSE packets. Additionally, it offers per-port and 802.1p Tag Quality of Service to ensure the delivery of high priority data.
This networking device is built with industrial grade components to protect it from hazards like vibration, shock, free fall, interference, and extreme temperatures that make it resistant to harsh industrial environments.
Ruggedized Components Designed for Harsh Industrial Environments
Built with industrial-grade components, good thermal conductivity, and enclosed in an IP40 aluminum case, this Ethernet switch is resistant to extreme environments, vibration, EMI (electromagnetic interference), ESD (electrostatic discharge), power surge, over-voltage, over-current, and reverse polarity. It withstands operation at extreme temperatures between -40°C~75°C (-40°F~167°F). It follows international safety standards like CE, FCC, and ROHS for safe operation.
Quick and Convenient Installation with Auto-negotiation
INS-8405EM works as soon as it is connected and makes installation convenient. One 12~48VDC power supply connects to the 3-pin terminal block for power. The 10/100/1000 Mbps ports use MDI/MDI-X connection for auto-negotiation to work as soon as connected to other network devices at the required speed without extra software installation needed. The LED light displays when the device is in operation. The slim and small design allows it to fit at different locations for many devices to operate in the same network and can be mounted to a standard TH35 DIN rail.
Traffic Control Mechanisms to Optimize Bandwidth Usage
Traffic control mechanisms regulate excessive traffic to avoid delay, data loss and connection issues between devices. INS-8405EM offers mechanisms such as Flow and Storm Control that prevent devices from overwhelming each other during the exchange of data and to keep the flux at a tolerable rate, hence keeping devices working within their capacity and avoiding the network from collapsing.
Intelligent VLAN Data Forwarding
INS-8405EM is aware enough to read the source and destination of VLAN tagged data packets. This unmanaged switch delivers VLAN packets without changing or dropping them assuring operational data in industrial fields is delivered safely across devices.
Critical Data Transmission Priority
INS-8405EM streamlines the execution of time-sensitive applications with the 802.1p Tag QoS by classifying data into high and low priority. Mission-critical applications in industrial automation like manufacturing and monitoring can be done without delay through port priority on ports #1 even during high traffic.
Prioritizes Industrial Standard Protocols
Industrial automation applications employ packet protocols that focus on delivering data under tight time constrains. This unmanaged switch is configured with iQoS to prioritize industrial application protocols and deliver time-sensitive data used in industrial applications first, including Ethernet/IP, PROFINET, and GOOSE (Generic Object Oriented Substation Events).
Connects Large Network Groups and Facilitates Data for Monitoring Systems
During network discovery unmanaged switches can cause device flapping and make it difficult for monitoring systems to access device data. INS-8405EM avoids device flapping when connected to a managed switch. Using the LLDP Filter feature the device can be used in large networks. It allows other devices in the network to exchange identifiable data for accurate monitoring without concerns from detecting erroneous messages and false alerts in the presence of an unmanaged switch.
Standards
IEEE 802.3
10BASE-T
IEEE 802.3u
100BASE-TX
IEEE 802.3ab
1000BASE-T
IEEE 802.3
Nway Auto-negotiation
IEEE 802.3x
Flow Control
IEEE 802.1p
Class of Service
Interface
Ports
5 x 10/100/1000BASE-T (RJ45)
LED Panel
PWR, 1000, LNK/ACT
Power
Input Voltage
12~48VDC (Nominal 24VDC for marine use)
Connector
Terminal block
Max Power Consumption
3W
Reverse Polarity Protection
Present
Over Load Protection
Present
Mechanical and Environment
Housing
Aluminum (IP40 Protection)
Mounting
DIN-Rail
Operating Temperature
-40°C~75°C (-40°F~167°F)
Storage Temperature
-40°C~85°C (-40°F~185°F)
Operating Humidity
5 to 95% RH (non-condensing)
Storage Humidity
5 to 95% RH (non-condensing)
Weight
183.4 g (0.4 lb)
Dimension (WxHxD)
23.6 x 109.2 x 73.8 mm (0.93 x 4.3 x 2.90 in)

Ordering Information
| Model | Description |
|---|---|
| INS-8405EM | Premium Unmanaged 5 x 10/100/1000 RJ45 Industrial Switch, DNV Marine Approval |
*Specifications subject to change without prior notice.