MALE/FEMALE DISCONNECT INSERTION/EXTRACTION FORCES

The typical average force observed when inserting/extracting a standard NEMA DC2 male test tab into a standard ETCO disconnect while using an ETCO insertion/extraction force gauge to standard operating procedures is shown below:

Male Size
Width (mm)
First Insertion
lbs. (N)
First Extraction
lbs. (N)
Sixth Extraction
Ibs. (N)
* .250″ (6.35) 8.5 (37.81) 7.5 (33.36) 5.5 (24.47)
.187″ (4.75) 6.0 (26.78) 10.0 (44.64) 6.0 (26.78)
.110″ (2.79) 6.0 (26.98) 7.0 (31.25) 4.0 (17.85)

* Male test tab with recessed dimple for the detent feature, versus through hole on all others.

WIRE/CRIMP EAR PULLOUT TEST VALUES

The minimum force required to separate the wire from the wire crimp ear with the insulation ear, if present, rendered inoperative will be as follows:

In some cases ETCO will recommend higher pullout forces to increase conductivity. ETCO will recommend crimp height to accomplish best all around crimp performance.

Size Of Conductor
AWG
Pullout Force
mm2
Pounds Newtons
28 0.08 2 8.9
26 0.13 3 13.4
24 0.20 5 22.3
22 0.324 8 35.6
20 0.507 13 57.7
18 0.823 20 89.0
16 1.31 30 133.5
14 2.08 50 222.5
12 3.31 70 311.5
10 5.261 80 356.0
8 8.367 90 400.5
6 13.30 100 455.0
4 21.15 140 623.0

ACCEPTABLE MEASUREMENT AREA

Measuring Crimp Height: Crimp height must be measured with the spindle and anvil of a micrometer, centered against the bottom and the top of the crimp respectively and between the ribs on the bottom of the crimp, if applicable.