LCN SEM 7800 Series

Specifications

The Sentronic® SEM 7800 Series are heavy duty, electrically controlled door holding magnets. Magnets are fail safe and hold until the current is interrupted. A manual door closer is used to control and close the door. A choice of floor, recessed wall, or surface mounted wall magnets are available.

All SEM series magnets are UL listed for smoke barrier or labeled fire doors. Tested and certified under ANSI Standard A156.15.

SEM 7820 Magnet Features

• Tri-voltage design with 35 lbs. of holding force
• Floor-mounted
• Now available armature extensions from LCN
• SEM 7820 magnets are shipped with die cast housing, cover, armature(s) and WMS screw pack
• UL listed for smoke barrier or labeled fire doors
• SEM 7820 available in Aluminum and Dark Bronze finishes

SEM 7830 Magnet Features

• Tri-voltage design with 35 lbs. of holding force
• Surface wall-mounted
• Now available armature extensions from LCN
• SEM 7830 magnets are shipped with die cast housing, cover, armature and WMS screw pack
• Suitable for use in pocket door installations
• UL listed for smoke barrier or labeled fire doors
• SEM 7830 available in Aluminum and Dark Bronze finishes

SEM 7840 Magnet Features

• Tri-voltage design with 35 lbs. of holding force
• Low profile recessed wall-mounted
• Now available armature extensions from LCN
• SEM 7840 magnets are shipped with die cast housing, cover, armature and WMS screw pack
• Suitable for use in pocket door installations
• UL listed for smoke barrier or labeled fire doors
• SEM 7840 available in Aluminum and Dark Bronze finishes

SEM 7850 Magnet Features

• Tri-voltage design with 35 lbs. of holding force
• Standard profile recessed wall-mounted
• Now available armature extensions from LCN
• SEM 7850 magnets are shipped with die cast housing, cover, armature and WMS screw pack
• Suitable for use in pocket door installations
• UL listed for smoke barrier or labeled fire doors
• SEM 7850 available in Aluminum and Dark Bronze finishes

Mounting Options/Arms

Door Armatures

• Standard, die cast low profile armature: SEM7820-825, SEM7830-825, SEM7840-825, SEM7870-825
• Standard, die cast armature: SEM7850-828
• Standard, plastic low profile armature: SEM1960-825, SEM1970-825
• Standard, plastic armature: SEM1980-828

Extensions

• Coupler assembly is required for each door needing extension(s).
  Kit includes coupler link and ball pivot (alone serves as a 1-1/2” extension). Coupler Assembly Kit: SEM7810-514
• Standard metal 1/2” extension:  SEM7810-E050
• Standard metal 3/4” extension: SEM7810-E075
• Standard metal 1” extension:  SEM7810-E100
• Standard metal 2” extension:  SEM7810-E200
• Standard metal 4” extension:  SEM7810-E400
• Extension Kit: SEM7810-517 (Extension kit includes: 10 - 7810SEM-E050, 10 - 7810SEM-E075, 10 - 7810SEM-E100, 5 - 7810SEM-E200, 20 - 7810SEM-514.)

Note: Using just the ball link and connector link will create a 1-1/2” link. Extension Links are available in different lengths and can be combined together to achieve the desired length.

Options

Electrical Data

• Holding Force: 35 lbs. @ Nominal Input Voltage
• Maximum Current Draw:  .020A @ 24VAC/DC;  120VAC  .030A @ 12VDC

Magnets

• Standard magnet coil: Floor Magnet, SEM7820-516, SEM7870-516
• Standard magnet coil: Wall Magnet, SEM7830-516, SEM7840-516, SEM7850-516, SEM1960-516, SEM1970-516, SEM1980-516

Cover

• Standard, die cast cover: SEM7830-72, SEM7840-72, SEM7850-72
• Standard, plastic cover: SEM1960-72, SEM1970-72, SEM1980-72

Box

• Standard, die cast surface wall mount box: SEM7830-268
• Standard, plastic surface wall mount box: SEM1960-268