Fire-Rated Power ConnectorBuilding ServicesTunnelsNuclear

DSF400 400°C Fire-Rated Connector

Marechal Electric·DSF400 125A 3P

Description

Marechal Electric DSF400 fire-rated plug and socket rated for 400°C exposure for 2 hours. 125A, 690V, IP66/IP67. Metal housing. Designed to maintain circuit integrity in fire conditions — essential for life safety systems, emergency egress lighting, fire suppression pump motors, smoke extraction fans, and tunnel ventilation systems that must remain operational during a fire. Certified to IEC 60331 and EN 50200 fire integrity standards. Also used in nuclear power plant fire barrier penetrations.

Technical Specifications

Pin/Contact Count
3 to 5
Rated Voltage
690V
IP Rating
IP67
Temperature Range
-25 to +400°C
Shell Material
Metal
Mating Cycles
500 cycles
IP RatingIP67
IP20IP40IP54IP65IP68

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