ACI Logo


  Enter Stock Code, Model No., or Keywords
SAFETY SWITCHES > Key Operated with Manual Mechanical Delay
Previous Page | Next Page | View Printer-Friendly Page
Safety Switches
Key Operated • Manual Mechanical Delay
Metal and Non-Metallic Holdings

General Specifications
- FP Series: Glass reinforced, self-extinguishing, shockproof, thermoplastic provides double insulation.
- FD Series: Die cast metal with baked epoxy powder coating.
Compliance: Low voltage directive 73/23/CEE; Directive 93/68/CEE; Machinery directive 89/392/CEE
Conduit Entry: One entry PG13.5 (Conduit adapter PG13.5 to ½" NPT furnished standard)
Mechanical Endurance:
- Life cycle: 1 million operations
- Operating temperature range: -13° to +175° F (-25° to +80° C)
- Activating speed: 19.5 inches / sec (0.5 m/sec) maximum
- Holding force: 225 lbs. (1,000 N) maximum
Standards: UL 508, CSA C22-2nr.14, CEI EN 60947-5-1, EN 292, EN 418, EN 1088, EN 60204, EN 60947-5-1, IEC 204,IEC 337-1, IEC 947-5-1, NFC 63-140, VDE0113, VDE 0660, BG-GS-ET-15
Positive Break Contacts are in compliance with standards: CEI EN 60947-5-1, EN 60947-5-1, IEC 947-5-1, VDE0660-206,
Protection Class: IP66 (according to IEC529)
Minimum Door Radius: Side = 11.8" (300 mm) Front = 19.7" (500 mm)

Click for Larger Image in a New Window


Click for Larger Image in a New Window



  1. Connect safety circuits to the NC contact (11-12 or 21-22). Contacts are normally closed when the key is inserted into the switch and locked. Normally open contacts are only for indicating circuits. They are not to be used in the safety circuit.
  2. Mount the switch and key to the machine using tamper-resistant fasteners (not supplied). Use washers to prevent fasteners from pulling through switch mounting holes.
  3. The switch head has 2 key openings and can be rotated in 4 x 90 degree steps and the manual delay device can also be rotated 4 x 90 degree steps. To rotate the switch head: insert the key, remove the 2 head attachment screws, rotate the head into the proper position and reinsert the head attachment screws. See Figure 1.
    To rotate the manual time delay unit, remove the switch head (as above) and the 4 manual time delay unit screws. Reposition the manual unit and reinstall the 4 screws, the switch head and the 2 head screws. Head screw tightening torque = 7 inch lb. (0.8 Nm)
  4. Always insert the dust protection plug into the unused port in the key head.
  5. Do not use the switch as a mechanical stop.
  6. Protect the key entrance from dust and dirt.
  7. Verify proper safety switch operation before placing the machine in service.
  8. To prevent accidental door closing with the operator inside, padlocks can be placed through the hole in the switch key. Maximum lock shank diameter = ¼ (6 mm).
    See Figure 2.

Safety Switch Applications
Below are some typical applications for the Key Operated Manual Mechanical Delay Safety Switch.

Click for Larger Image in a New WindowClick for Larger Image in a New WindowClick for Larger Image in a New Window


Previous Page | Next Page


ACI Advance Controls Inc.
© 2017 Advance Controls, Inc. | 800.559.9ACI | 941.746.3221 | 4505 18th Street East, Bradenton FL 34203