440H Ensign 3 Hinge Interlock Switches
Allen‑Bradley

• CE Marked for all applicable directives
• cULus Listed
• NTTL/C
• TÜV Certified

Safety Classification

Dual channel interlocks suitable for use in Category 3 or Category 4 systems.

Functional Safety Data

• B10d: > 2 x 10⁶ operations at min. load
• PFHD: < 3 x10^-7
• MTTFd: > 385 years
• May be suitable for use in performance levels Ple or Pld systems (according to ISO 13849-1) and for use in SIL2 or SIL3 systems (according to IEC 62061) depending on the architecture and application characteristics 

Standards Compliance

• ISO 13849-1
  
• IEC/EN 60204-1
• NFPA 79
• EN 1088
• ISO 14119
• IEC/EN 60947-5-1
• ANSI B11.19
• AS 4024.1