
Network Switches
Lantronix SISTP1040-382-LRT Unmanaged Hardened Gigabit PoE+ Switch
The SISTP1040-382-LRT is an unmanaged, fanless hardened Gigabit switch with eight IEEE 802.3at PoE+ ports and two 100/1000 SFP slots, built for DIN-rail cabinets on factory floors, outdoor enclosures and hazardous locations.
From $524.70
Overview
About the Lantronix SISTP1040-382-LRT
The SISTP1040-382-LRT (also searched as SISTP1040-382) powers and connects PoE devices at the edge of a hardened network where a managed switch is unnecessary. It has eight 10/100/1000Base-T ports that comply with IEEE 802.3at and 802.3af and can deliver up to 30 W per port, plus two 100/1000 dual-speed SFP slots for fiber uplinks. The two SFP ports can also daisy-chain switches together for network reliability.
The fanless switch is housed in a ruggedized IP30 metal enclosure and operates from -40°C to +75°C. Redundant 48 to 57 VDC power inputs include reverse power protection, and the unit carries UL Class 1 Division 2 certification for hazardous locations alongside CE, FCC Part 15 and IEC62368-1. Store-and-forward switching runs at 20 Gbps with a 4K MAC table, 9K jumbo frames and IEEE 802.3az Energy Efficient Ethernet.
There is nothing to configure: connect power, cameras and uplinks, and LEDs report system, both power inputs and port status, with a reset button on the unit. The enclosure measures 44 x 130 x 135 mm and weighs 0.46 kg, so it fits narrow DIN-rail space in control panels and outdoor cabinets such as the OCA-P181610. A DIN-rail bracket is included, and wall mounting is an option.
Key capabilities
- Eight PoE+ ports
- All eight Gigabit copper ports comply with IEEE 802.3at and 802.3af and can supply up to 30 W each to cameras, access points and sensors.
- -40°C to +75°C fanless
- A fanless, ruggedized metal design operates from -40°C to +75°C, with no moving parts to fail in dusty or vibrating cabinets.
- Hazardous location certified
- UL Class 1 Division 2 certification allows installation in hazardous locations, in addition to CE, FCC Part 15 and IEC62368-1/EN62368-1 safety.
- Redundant DC inputs
- Dual 48 to 57 VDC inputs with reverse power protection keep the switch running if one power source fails, with separate LEDs for each input.
- Daisy-chain fiber uplinks
- Two 100/1000Base-X SFP slots connect to the backbone or chain multiple hardened switches together across a line or site.
How to choose the right SISTP1040-382-LRT part number
SISTP1040-382-LRT is a single orderable model: eight 10/100/1000Base-T PoE+ ports, two 100/1000Base-X SFP slots and a DIN-rail bracket in the box. Because it runs on 48 to 57 VDC, plan a DC source sized to the PoE load, such as the 25104 DIN-rail supply (48 to 55 VDC, 240 W) or the 25105. The WMBH-01 wall-mount bracket, spare DRBH-01 DIN-rail bracket and OCA-P181610 outdoor cabinet are listed accessories. For a smaller port count, Lantronix documents the related SISTP1040-342-LRT in the same install guide.
Configure & order
Find your SISTP1040-382-LRT part number
Every orderable SISTP1040-382-LRT configuration, filtered by the specs that actually differ between them. Pick what you need on the left and the matching part numbers appear here.
Complete the deployment
Accessories, renewals & add-ons
Everything sold for the SISTP1040-382-LRT, organized by what it does — power, mounting & enclosures— each with why you'd add it.
Power
2 items
25105
25105
Industrial DIN rail mounted power supply with 88-264 VAC and 124-370 VDC input ratings. It provides 48~55 VDC output at 2.5A and 120 Watts.
$291.50
4 in stock

25104
25104
Industrial DIN rail mounted power supply with 85-264 VAC or 124-370 VDC input and 48~55 VDC output. It delivers 5.0A and 240 Watts for Lantronix switch accessory deployments.
$495.00
1 in stock
Mounting & enclosures
3 items
DRBH-01
DRBH-01
DIN rail bracket kit for hardened switches. It is listed for SISPM, SISGM and SISTx products, with compatible products identified by Lantronix for multiple SISPM1040, SISGM1040,…
$11.00
1 in stock

WMBH-01
WMBH-01
Wall mount bracket for SISPM1040-384-LRT-C, SISPM1040-362-LRT, and SISPM1040-582-LRT switches.
$33.00
3 in stock

OCA-P181610
OCA-P181610
18 x 16 x 10” polycarbonate outdoor cabinet assembly for Lantronix outdoor switches.
$948.75
Ships on backorder
Compatibility taken from the Lantronix part-number tables for the SISTP1040-382-LRT. Don't see what you need? Request a quote — we can source the full Lantronix catalog.
Where the SISTP1040-382-LRT is used
- PoE+ IP cameras in outdoor enclosures
- Factory-floor access points and PoE sensors
- Class 1 Division 2 hazardous location networks
- Daisy-chained edge switches along roadways or pipelines
SISTP1040-382-LRT datasheets & documentation
- Product BriefPDF
- SISTP1040-382-LRT Product Brief (A4)PDF
- SISTP1040-382-LRT Datasheet (218.29 KB)PDF
- SISTP1040-342-LRT & SISTP1040-382-LRT Quick Start Guide Rev EPDF
- PoE Switches & Media Converters MatrixPDF
- Unmanaged Hardened Switches Overview (PDF 202.75 KB)PDF
- SISTP1040-342-LRT & SISTP1040-382-LRT Install Guide Rev GPDF
SISTP1040-382-LRT FAQ
Is the SISTP1040-382-LRT a managed switch?
No. The SISTP1040-382-LRT is an unmanaged Layer 2 switch with a wire-speed switching engine. It needs no configuration, which suits remote cabinets where a simple, fixed PoE edge switch is all that is required.
How much PoE does the SISTP1040-382-LRT provide per port?
Each of the eight 10/100/1000Base-T ports complies with IEEE 802.3at PoE+ and 802.3af PoE and can deliver up to 30 W. Size the 48 to 57 VDC power supply to the total load of the connected devices.
What is the operating temperature of the SISTP1040-382-LRT?
The switch operates from -40°C to +75°C at 5% to 95% non-condensing humidity. It is fanless with an IP30 metal enclosure and is UL Class 1 Division 2 certified for hazardous locations.
What power supply works with the SISTP1040-382-LRT?
The switch takes redundant 48 to 57 VDC inputs with reverse power protection. Lantronix lists the 25104 industrial DIN-rail supply, with 48 to 55 VDC output at 240 W, and the 25105 DIN-rail supply as compatible accessories.




