Technical information

AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN, EL PASO, TEXAS 79936 • [phone] • FAX [phone]
www.msdignition.com email: [e-mail]
84
MSD Relays will allow you to activate a variety of accessories that require high current. These are ideal to tie in
with rpm activated switches such as nitrous or air shifter solenoids or even a horn or fuel pump.
The most common use of a relay is to switch the relay on (energize its coil) using a small amount of power (12V/
1 amp) which then moves the relay’s armature so it can transfer a large amount of power (12V/30 amp) to the
device which you need to activate.
The PN 8960 will handle a 30 amp load, on each side, with an input voltage of 12 volts.
The PN 8961 Relay will handle a 30 amp load and is ideal for multiple accessories.
Relays have a variety of specifications to understand for your application. A few things to consider include:
Make sure the Relay can accept and handle the voltage and current required to activate the desired circuit.
The number of bobbins to use with different circuits (generally 1-2).
The number of electrical contacts for the armature (generally 1-2).
If the Relay is Normally Open (NO) or Normally Closed (NC).
NO - NORMALLY OPEN
NC - NORMALLY CLOSED
C - COMMON
MSD RELAYS, SINGLE POLE, PN 8961,
DOUBLE POLE, PN 8960
MSD RELAYS
INSIDE
86
1
7
34
2
1786
3420
8
6
0
87 87A
87A
85
30
87 NO
NC C NO
NC
C
86
85
30
LOCATION OF PIN'S
MSD PN 8961 RELAY
MSD PN 8960 RELAY