QUESTIONS?

Not finding the exact contact you need

Do you need a customized magnetic contact for a special job? We can add lead length to two, three, four or six wire switches; zip cord, jacketed and armored cable. We can also incorporate any combination of resistors and still ship in 24 hours.

If the product you need is not shown, give us a call at 800.843.5530. We can incorporate resistors in any combination to any switch package and/or provide other customizations (i.e. longer lead lengths, special switch/magnet combinations, alternative lead material) and still ship in 24 hours.

1. What contact set do I use for protecting Industrial Rollup type doors, also known as Canister or Curtain doors?

  • Rail Mount:
    • N505ASCD Series - SHORTY MIGHT O/H DOOR RAIL MOUN FOR CURTAIN DOOR is explicitly designed for this application. The magnet actuator mounts directly on the door and rolls up in the door.  Check upper door stop clearance to make sure the the magnet actuator is not prevented from passing under the stop.
  • Floor Mount:
    • N200AU Series - MIGHTY MITE MINI SWITCH WITH UNIVERSAL MAGNET
    • N205AU Series -  STANDARD SWITCH WITH UNIVERSAL MAGNET
    • N205A Series - STANDARD SWITCH WITH FIXED L BRACKET
    • N205AN400G Series - STANDARD SWITCH WITH ADJUSTABLE L BRACKET
  • Direct Burial:
    • NDB400AU - DIRECT BURIAL SWITCH WITH UNIVERSAL MAGNET
    • NDB400A - DIRECT BURIAL SWITCH WITH FIXED L BRACKET

All of the switches mentioned above have No Dead SpotTM integrated in all Closed Loop switches.

3. What is a Neodymium Magnet? Is this the same as a Rare Earth magnet?

Nascom uses Neodymium (NdFeB) magnets in most switch models.  These magnets are rare earth magnets as Nd is a rare earth element.  Neodymium magnets are the strongest of the rare earth magnets.

5. Can I get longer than standard lead lengths on my switches?

We can add lead length to two, three, four and 6 wire switches, zip cord, jacketed cable and armored flex. Just let us know what length you require for your application.

7. What are form A, form B and form C contacts?

These are contact arrangements that can be found on switches and relays.
Form A: is a single, normally open contact that closes upon actuation when the magnet actuator is in proximity of the switch.
Form B: is the same as A except in reverse. A form B is normally closed contact that opens upon actuation when the magnet actuator is in proximity of the switch.
Form C: is a form A contact connected to a form B contact. The form C contact has 3 wire leads, NO (normally open), NC (normally closed) and C (common). Upon actuation when the magnet actuator is in proximity of the switch, the NO (normally open) contact closes (continuity from NO-C) and the NC contact opens (no continuity from NC-C).
It is more common to see the following designations:
Form A and B can also be referred to as Single Pole- Single Throw Contacts:
SPST-NO (Closed Loop) = Form A
SPST-NC (Open Loop) = Form B
Form C can be referred to as Single Pole Double Throw:
SPDT = Form C

9. Please explain Nascoms part number system:

Aluminum Industrial Contact Example: N505AUTMC/STSD072
N = Nascom part number
505A = 505A series aluminum industrial contact
U= Universal Mount
TM = Track Mount
C = Commercial 3 inch rail size
/ST = Switch and Magnet set
SD = Single Pole Double Throw (Form C) contact.
072 = Custom 72 inch Armor Flex lead length
3/8 inch Recessed Switch Example: N1175TW/ST
N = Nascom part number
1175 = 1175 series Stubby 3/8” Press fit recessed contact
T = Screw Terminal Contact
W = White Color
/ST = Switch and Magnet Set
Other part number designations:
/SW = Switch only
/M = Magnet only

11. Do I need to clean the surface of the window/door before I stick on a tape mount switch?

For best results we recommend cleaning the surface area with Isopropyl Alcohol and let dry before applying the switch and magnet to the surface.

13. Do you provide mounting screws?

Nascom will provide mounting screws for surface mount contacts upon request. An additional charge for screws may apply.

15. Can I get Bulk Packaging greater than 10 per bag?

Yes! Just give us a call and let us know your packaging requirement.

17. Do you have a mounting bracket selection guide?

BRACKET SELECTION GUIDE:
Guide to brackets and contacts they will accept.

AUTM/BRKTKIT: For rail mounting the N505AU series to a standard residential overhead door with 2-1/4 depth track. See the complete set. N505AUTM/ST.

AUTMC/BRKTKIT: For rail mounting the N505AU series to a commercial overhead door with 3" depth track. See the complete set. N505AUTMC/ST

BRACKET S-9: Will accept surface mount contacts in the INDUSTRIAL COMMERCIAL products category except the N505AS and N400T series.

BRACKET EA50: Will accept surface mount contacts in the INDUSTRIAL COMMERCIAL products category except the N505AS and N400T series.

BRACKET 1913 .... Will accept surface mount contacts in the INDUSTRIAL COMMERCIAL products category except the N505AS and N400T series.

BRACKET 505S/A ... Designed to fit the N505AS series only. N505ASBRACKETKIT ... BRACKET 505S/A with mounting screws, nuts and washers.

BRACKET GATE and BRACKET GATE SPAC for mounting the N505A/STMPA to a chain link fence. See N505A/STMPAG

BRACKET SECLOOP. Replacement Bracket for the N505AS/STHSLP series.

The following are the available Bracket kits that include screws, washers and nuts.

BRACKETEA50KIT, BRACKET #EA50 WITH SCREWS, NUTS AND WASHERS Unit Price: $4.95, MOQ = 1.

BRACKET1913KIT, BRACKET #1913 WITH SCREWS, NUTS AND WASHERS, Unit Price: $3.95, MOQ = 1.

AUTM/BRKTKIT, TRACK MOUNT BRACKET KIT WITH SCREWS, Unit Price: $8.00, MOQ = 1.

AUTMC/BRKTKIT, COMMERCIAL TRACK MOUNT BRKT KIT W/ SCREWS, Unit Price: $13.00, MOQ = 1.

2. What is the temperature range the alarm contacts will operate?

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4. Can I get end of line resistors built into my switch?

Yes! Nascom can build most switch configurations with end of line resistors in series and series/parallel configurations. We stock most standard values in 5% tolerance carbon film resistors. Other non- standard values are available including 1% carbon and metal film resistors but may have longer lead times than standard contacts.

6. What are form A, form B and form C contacts?

We can pair just about any switch and magnet combination for your special application. If you are not sure of the optimal combination for your special application, give us a call at 800-843-5530 or send us an email to techsupport@nascominc.com. Please provide us as much information about your application as possible including photos and or video.

8. What does Ampere Turns or AT mean?

Short Definition = Ampere Turns also referred to as AT or NI: is a parameter that describes the magnetic sensitivity of the reed switch.

10. What contact should I use for protecting Vinyl windows? I can’t drill them due to manufacturer warranty.

Nascoms N135WG Cap Switch series is the ideal choice for vinyl windows, this is a stickon surface mount low profile switch and magnet set with aesthetically pleasing form. The CAP switch series features 3M VHB tape for quick and easy installation. The CAP switch series is offered in both end lead and center lead configurations. There is also a Vent Switch variant, Nascoms N235 series available in screw terminal, end lead and center lead configurations. The N235 series vent switch maintains the sleek euro form of the cap switch in slightly larger package to allow for Nascoms patented “No Dead Spot” technology which allows you to open the window up to 3 inches while maintaining a secure state. The N235 series vent switch is the most compact vent switch in the industry. Nascoms NC1010T series is another screw terminal contact option for vinyl window applications featuring a beveled screw terminal cover.

12. Can I get my company logo put on a switch?

Nascom offers private labeling for most switch series. We can Hot Stamp your logo in a variety of colors on most plastic switch and magnet housings or covers. For aluminum housing switches we can create a label with your logo. Just send us your logo artwork in ai file format or Vector file format for aluminum housing labels. PDF format is ok for hot stamp logos. For best results please keep your logo artwork simple. Intricate detail cannot be reproduced on hot stamped logos.

14. What is Nascoms standard package quantity for contacts and magnets?

Plastic Recessed and Surface mount contacts - Standard Package Qty. = 10
Magnet only - Standard Package Qty. = 25
Aluminum Industrial Contacts – Standard Package Qty. = 1

16. Why are the leads on the switches slightly shorter than what the product information states?

Nascom uses wire processing machines that cut and strip the wire leads to standard lengths such as 12”. The wire leads are welded to the reed leads and are processed into a configuration that will accommodate the type of housing it is intended to be potted in. Recessed and some surface mount contacts use a reed lead configuration that is potted in axial alignment with the housing and with the end of the reed assembly seated in the closed end of the housing. So part of the lead length is potted in the housing. One lead will be slightly longer than the other due to the axial reed assembly configuration. The offset in lead length will depend on the model number of the switch.