Msd 8961 High Current Relay, SPST Installation- User Manual
Msd 8961 High Current Relay, SPST Installation– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – RELAY APPLICATIONS; Figure 2 Inside the MSD Relays.; RPM
- Page 3 – Figure 4 Connecting an Electric Fuel Pump.
- Page 4 – Figure 7 Connecting Multiple Nitrous Solenoids with PN 8960.; Limited Warranty; or consequential damages.; Service; When returning MSD components for warranty service,; Proof of Purchase; must be supplied for verification. After; M S D
MSD RELAYS
PN 8961, Single-Pole, Double-Throw, 30 Amp/12 VDC
PN 8960, Double-Pole, Double-Throw, 30 Amp/12 VDC
MSD Relays will allow you to activate a variety of accessories that require high current. These are
ideal to tie in with an rpm activated switch to control a nitrous or air shifter solenoid.
The benefit of a relay is that it can be energized using a small amount of power (12V/1 Amp). This
moves the relay's armature so it can transfer a large amount of power (12V/30 Amp) to activate a
high current device.
• 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.
Following is a short description of the operation of a relay. A variety of wiring schematics are also
included to help with your installation.
Relays are very simple devices and consist of four basic parts:
• A small coil (sometimes referred to as a bobbin or electromagnet)
• An armature
• A spring
• A set of electrical contacts
Relays consist of two separate and completely independent circuits; the Controller circuit and Switch
circuit. In Figure 1 the Controller circuit is on the bottom and it controls the power to the electromagnet.
When 12 volts are supplied through the switch, the coil is energized. When energized, it attracts the
armature of the Switch circut.
The Switch circuit consists of an armature, spring and contacts for the high current side. The armature
is a switch and will complete or open the high current circuit. When the coil of the relay is energized, it
attracts the armature from one electrical contact to another to complete the circuit. When the coil is not
energized the spring pulls (or pushes) the armature back and the high current circuit is opened.
Figure 1 General Relay.
M S D
• W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
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Summary
2 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 Relays have a variety of specifications. A few things to consider include:• Make sure the Relay can accept and handle the voltage and curren...
INSTALLATION INSTRUCTIONS 3 M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 Figure 4 Connecting an Electric Fuel Pump. Figure 5 Connecting a Nitrous Solenoid at the Launch. Figure 6 Connecting a Two Step from a Clutc...
Figure 7 Connecting Multiple Nitrous Solenoids with PN 8960. Limited Warranty M SD warrants this product to be free from defects in material and workmanship under its intended normal use*, when properly installed and purchased from an authorized MSD dealer, for a period of one year from the date of ...
