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Type MG-6 Multi-Contact Auxiliary Relay
NOT FOUND
Figure 2: Detail Views of the Latch and Electrical Reset of
the Type MG-6 Relay
the weight is partially balanced about the bearings
leaving less chance for severe shocks to move the ar-
mature. The corresponding stationary contact assem-
bly, with its large silver button contacts, can be in-
stalled to close with the moving contacts when the
armature is in either the energized or de-energized
position.
In certain applications of the type MG-6, it may be de-
sirable to have one or more of the contacts close be-
fore other contacts on the same relay open. A special
armature assembly is required to obtain such opera-
tion, and the number of special make and break con-
tacts desired must be known when the relay is built.
The special moving contacts have longer follow than
the standard contacts and greater armature spring
tension is required for full deflection of the break con-
tacts. Consequently, it is preferable to limit the num-
ber of special break contacts to two. A maximum of
three may be used, although the increased armature
spring tension needed may raise the minimum
pick-up voltage above the standard value. As many
as five contacts may be special make contacts, with
Courtesy of NationalSwitchgear.com
STATIONARY BREAK CONTACT ASSEMBLIES
ASSY
0
Sub 1
*1
A
9660A79
*2
A
*3
A
*4
A
5
B
6
C
7
B
8
A
9
A
10
A
11
A
12
A
13
A
14
B
15
B
16
B
17
B
18
B
19
C
20
D
21
A
22
F
23
A
24
A
25
B
26
F
27
B
* Also used for Make-Before-Break operation. Bend all
Make-Before-Break Stationary Contacts equally toward
moving contacts to obtain make approx. .0625"
contact travel before break.
Figure 3: Contact Positions for Combinations of
Make-Before-Break Contacts
41-753.1M
REVERSE CONTACT AT POSITION
B
B
F
B
E
F
C
E
D
E
F
B
C
D
F
B
C
D
B
C
D
E
B
D
E
F
D
C
C
D
C
D
F
D
E
F
B
D
B
C
D
E
E
F
D
E
F
3
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