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The Phoenix Contact 2839402 is a surge protection base element designed for use with PT protective plugs. It is suitable for 4-wire floating signal circuits and includes a bridge between connections 3-4 (GND) and 9-10.
This base element is designed for mounting on a 35 mm DIN rail (NS 35/7.5 and NS 35/15). It has a housing width of 17.5 mm and a divisible, two-section design for ease of maintenance. The connection method is screw connection, supporting stranded conductors from 0.2 mm² to 2.5 mm² and solid conductors from 0.2 mm² to 4 mm².
Key technical specifications include an operating temperature range of -40°C to 85°C and an IP20 degree of protection. The housing material is PA 6.6 with a UL 94 V0 flammability class. The tightening torque for the M3 screw thread is 0.5 Nm, with a stripping length of 8 mm.
This product complies with IEC 61643-21 and DIN EN 61643-21 standards. It is manufactured in Germany and has a weight of 54.9 GRM per piece.
The operating temperature range is -40 °C to 85 °C.
It uses screw connections for both input and output.
The housing material is PA 6.6.
The degree of protection is IP20.
It supports stranded conductors from 0.2 mm² to 2.5 mm² and solid conductors from 0.2 mm² to 4 mm².
It complies with IEC 61643-21 and DIN EN 61643-21.