512
Electrical Spring Connectors
Data Sheet
Application
Use a 512 connector to electrically connect two or
more wire ends in a pigtail application and insulate
the connection, or to insulate a single wire end.
Wire Range
AWG Range: Solid or stranded copper conductors only.
No. 20 thru No. 8 (0,75 mm2 thru 6,0 mm2).
Construction
Spring - Spring Steel, Corrosion Resistant Coating
Insulator - Flame Retardant Nylon
Color - Red
Weight
.006 lb. (2,7 gm)
Engineering Specification
Electrical Spring Connector (as manufactured by 3M,
part No. 512) shall be capable of connecting wires
within the range of No. 20 thru No. 8 solid or
stranded copper conductors in a pigtail application.
The connector shall be constructed of an active (live)
spring and covered by a polypropylene insulator. The
spring shall have a corrosion resistant coating. The
connector shall be UL Listed as a pressure cable
connector and be CSA Certified. The connectors shall
be voltage rated 600 volts maximum, building wire,
1000 volts maximum signs, fixtures, and luminaires.
The connector shall have a maximum operating
temperature of 105C.
Regulatory Agencies
UL Listed as a Pressure Cable Connector
Tested per UL Standard 486C
UL File No. E23438
CSA Certified-CSA Standard C22.2 No. 0,
188-M1983
CSA File No. LR15503
Operating Temperature: 105C (221F)
Voltage Rating: 600 volts max. building wire
1000 volts max. signs and luminaires.
Flammability Rating: C22.2 No. 0.6 V-2
Classified in accordance with IEC
(International Electrotechnical Commission)
publications 685-1 and 685-2-4. UL-IEC file
No. E95240.
Operating Temperature: 105C (221F)
Voltage Rating: 600 volts max. building wire;
1000 volts max. signs and fixtures
Flammability Rating: UL94 V-2
Federal Specification W-S-610:
Commercial package only
Type
Class
Kind
Style
1
1
cu
G
512
AWG Wire Combinations
Copper to Copper Conductors
= 300 volts
= 600 volts
All wire combinations
are 600 volt UL Listed
when using conductors
with insulation thickness
such as TW and THHN.
UL Listed single wire terminations:
No: 10, 12 and 14 AWG
All wire combinations
are 600 volts
CSA Certified
How to read this chart:
Example 1:
1 No. 14 sol
+ 6 No. 16 sol (7)
Example 2:
1 No. 12 sol
+ 4 No. 12 str (5)
Installation Instructions
WARNING
Turn power off before installing or removing terminal. All electrical
work should be done according to appropriate electrical codes.
Conductor Size
Strip Length
20-16 AWG (0,75-1,5 mm2)
3/4" (19,0 mm)
14-8 AWG (2,5-4,0 mm2)
5/8" (15,9 mm)
1. Strip wire insulation to length specified in chart
to the right, according to conductor size.
2. Firmly grasp wires, making sure insulation ends
are even and tightly bundled. (wires may be
twisted or untwisted). Slip connector over wire
tips.
3. Turn connector onto wires in a clockwise
direction until secure.
4. To remove, turn connector counter-clockwise.
Metric Wire Combinations
International Electrotechnical Commission
Rated Capacity: 2,0-16,0 mm2
Voltage Rating: 600 volts maximum
Reusability: Reusable for same capacity or larger
Wire Type: Copper only
See installation instructions for conductor strip lengths.
I.E.C. Metric Wire Matrix:
Twist-on connecting devices for the combination of
rigid (solid or stranded) and flexible conductors.
Conductor Size
Quantity
0.75 mm2
3-6
2-6
2-6
2-6
2-4
2
1,0 mm
1,5
2,5
4,0
6,0
mm2
mm2
mm2
mm2
Only AWG combinations are UL Listed or
CSA Certified.
3M is a trademark of 3M Company.
is a trademark of Underwriters Laboratories.
is a trademark of Canadian Standards Association.
is a trademark of International Electrotechnical Commission.
IMPORTANT NOTICE
Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability
associated with such use.
Warranty; Limited Remedy; Limited Liability. This product will be free from defects in material and manufacture as of the date of purchase.
3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be,
at 3Ms option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will
not be liable for any loss or damage arising from this 3M product, whether direct, indirect, special, incidental or consequential
regardless of the legal theory asserted.
Electrical Products Division
6801 River Place Blvd.
Austin, TX 78726-9000
www.3M.com/elpd
Litho in USA
3M 2003 78-8126-5512-0-A
