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SEH Series Holder

The SEH Series is a holder designed to provide a single-point hold-open function for fire and smoke barrier doors.


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The Sentronic® SEH Series provides a single-point hold-open function for fire and smoke barrier doors that must be used with opposite-side-mounted UL listed door closers. It is backed by a 2-year limited warranty and meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards. The SEH Series is UL listed for metal smoke barrier or labeled fire doors and cUL listed for self-closing doors without hold-open.

The SEH Series features a single-lever arm specifically designed for interior doors. It holds the door open until an electrical current interruption releases the holding mechanism, allowing the door to close. It also integrates with existing fire and life safety systems, minimizing danger under fire conditions.

  Heavy Duty

Body Construction

  • Includes a test switch assembly with fuse
  • Single-point hold-open for metal smoke barrier or labeled fire doors
  • Non-handed design

Quality and Durability

  • Door may be held open until current interruption releases holding mechanism
  • Interfaces with fire alarm systems
  • 2-year warranty


  • Concealed or surface wiring
  • Wood and machine screw pack
  • Designed for interior doors
  • Momentary on/off switch board assembly for testing the door release also provides over-voltage protection; is field-replaceable
  • Non-handed design for mounting on right- or left-handed doors
  • Hold-open force is adjustable
  • A powder coat finish is offered in standard colors and a large selection of optional custom colors
  • Optional plated finish on the metal cover, arm and fasteners
  • Optional SRI primer for installations in corrosive conditions available with powder coat only

The SEH Series mounts hinge pull side and stop face push side. View the SEH catalog pages for mounting details, arm options and accessories.

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Did You Know?

LCN hardware is tested in a range of temperatures beyond the normal BHMA standards to give customers peace-of-mind.

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As part of Allegion’s family of pioneering brands, LCN benefits from the strength, efficiencies, resources, and integration from a global power. In turn, we pass those advantages on to you.

Allegion helps keep people safe and secure where they live, work and visit. With more than 30 brands sold worldwide, we specialize in security around the doorway and beyond. It’s the power of one.