// EXPLOSION PROTECTION

EEx 355 4VSR

Features/Options

  • Ex zone 1 and 2,
    as well as 21 and 22
  • Metal enclosure
  • 2 contacts
  • Mounting details to DIN EN 50 041
  • Wiring compartment
  • Adjustable-length rod lever with nylon roller
  • For light- and medium-strength applications
  • Special version only for equipment category 3D, available for dust Ex zone 22
  • Inmetro approval for Brazil and Gost approval for Russia to be ordered separately



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EEx 355 4VSR

 

Technical data

Standards IEC/EN 60947-5-1; EN 50014; EN 50018; EN 50019; EN 50281-1-1
Enclosure Zink-Druckguss, lackiert
Switch insert Ex 95
Protection class IP 67 according to IEC/EN 60529
Contact material silver
Switching system slow action, positive break NC contact Zwangsöffnung
Switching elements change-over contact with double break Zb or 2 NC contacts, galvanically separated contact bridges
Connection M3 screw clamps
Cable section max. 1.5 mm2 (incl. conductor ferrules)
Cable length -
Uimp 4 kV
Ui 250 V
Ithe 6 A
Ie/Ue 6 A/250 VAC; 0,25 A/230 VDC
Utilisation category AC-15, DC-13
Max. fuse rating 6 A gL/gG D-fuse
Ambient temperature –20 °C … +60 ºC
Mechanical life > 1 million operations
Switching frequency 1800/h
Repeat accuracy ± 0.1 mm
Contact gap max. 2 x 3.5 mm
Ex certification EEx geprüft II 2G EEx de IIC T6, II 2D IP67 T80°C
Approvals BVS 04 ATEX E 126

Contact variants

  Slow action   
1 NC/1 NO contact
EEx 355 4VSR 1Ö/1S
1 NC/1 NO contact with overlapping
EEx 355 4VSR UE
2 NC contacts
EEx 355 4VSR 2Ö