3M PanelSafe Lockout System
TM
TM
3Innovation
Lock in Safety with 3M
™
PanelSafe
™
Lockout System
3M’s PanelSafe Lockout System mechanically prevents
the movement of breaker handles from the “off” position to
the “on” position with energy isolating lockout pins. With
PanelSafe, 3M is dedicated to helping you meet applicable
OSHA regulations, which require all electrical circuits to
be “locked out” prior to the servicing and maintenance of
machines, lighting and equipment. 3M PanelSafe Lockout
System complies with OSHA Standard 1910.147.
The unit, supplied with pre-drilled mounting holes, fastens
directly to the service panel dead-front using self-tapping
screws. The energy isolating lockout pins are stored in a
holding device also attached to the dead-front by means of
self-tapping screws, making the entire assembly and its
accessories completely contained behind the panel door.
Those authorized to perform a lockout function need only
carry their lock and tag.
A permanently installed
circuit breaker lockout
system, 3M PanelSafe is
designed with pre-spaced
slots that correspond to
the center point of the
service panel breaker
handles. The unit is
properly positioned when
the center of each pin slot
is aligned with the center
of each breaker handle.
Once installed, 3M
PanelSafe, which fits all
brands and models,
completely eliminates the
need for employees to constantly carry numerous lockout devices each designed to fit a
specific manufacturers panel and breaker type.
For the ultimate flexibility, a standard pin package includes both single-sided and
dual-sided pins for simultaneously locking off multiple circuits. Additionally, the
package contains a hook pin designed for use in situations where protecting against a
nuisance turn-off of dedicated or passive circuits is critical. Such applications may
include fire suppression systems, emergency lighting and computer systems.
The use of 3M PanelSafe will increase safety as well as help reduce costs.
In your business, power,
technology and reliability
are essential. 3M delivers
that and more.
We have the power
of a diversified, global
manufacturer with more
than 60,000 products in
our line; a reputation for
technical excellence and
innovation; and employees
committed to delivering
quality products and service
to you, our
valued customer.
Our capability doesn't stop
with electrical products,
it starts there.
To explore the many
ways we can serve you,
contact your 3M
representative today!
3M PanelSafe Lockout System Accessories
™
™
3M offers various pins, shims and brackets, so that the PanelSafe
Lockout System can be used, even if the panel front is not flat.
™
One Way Pin
A one way pin is used to lockout an individual circuit located on either
the left or right side of the panel. Available 5 per package
or bulk, 15 per package.
Two Way Pin
A two way pin is used to lockout two circuits directly opposite each
other. Available 5 per package or bulk, 15 per package.
Hook Pin
The hook pin can be used to secure “on” individual circuits (i.e.
dedicated passive circuits), or to lockout individual circuits from either
the left or right side of the panel. Available 5 per package
or bulk, 15 per package.
PS-SP Spade Pin
A spade pin is used to lockout on either the left or right side of the panel
when the measured distance from the center line of the dead front to the
max position on the breaker handle in the off position is greater than 2
1/2". Available 5 per package or bulk, 15 per package.
PS-SP05 Half-size Spade Pin
The half size spade pin is used to lockout half-size (twin or piggyback)
breakers. This pin can lockout an individual circuit by simply rotating
the pin 180° for either the top or the bottom breaker. Available 5 per
package or bulk, 15 per package.
Cup Pin
The cup pin is used to secure “on” individual circuits (i.e., dedicated
circuits) located on either the left or right side of the panel. Available 5
per package or bulk, 15 per package.
Pin Holder
Stores all pins, (except main breaker pin) at each panel location
for easy access when lockout functions are required.
2-1/2"
2-1/2"
PS-1P
2-1/2"
PS-2P
3"
PS-HP
3-1/2"
PS-SP
3-1/2"
PS-SP05
3"
PS-CP
PS-PH
Standard Shim
On distribution panels where the body of each breaker extends out
beyond the level of the dead front, the standard shim is used to raise the
surface, where a 3M
™
PanelSafe unit is mounted, level with the body of
each breaker. Available only in pairs.
1/8"
PS-SH1
Slotted Shim
On distribution panels where a raised, rounded bead runs down the
center of the dead front; the slotted shim mounts over this bead;
primarily GE panels. Provides a flat surface to mount PanelSafe unit.
Available only in pairs.
1/2" Shim
On distribution panels where the body of each breaker extends out
beyond the level of the dead front. The 1/2" shim is used to raise the
surface where a PanelSafe unit is mounted, level with the body of
each breaker. Available only in pairs.
1/8"
PS-SH2
1/2"
PS-SH3
V-Notch Shim
Used on distribution panels that have a V-Notch extending down the
length of the dead front; primarily ITE panels. Available only in pairs.
PS-OB1
Offset Brackets
Used in conjunction with a PanelSafe
™
unit when breakers are
recessed below the dead front and no area is available to mount a
PanelSafe unit by standard means. Available only in pairs.
2"
1/8"
PS-SH4
3-1/2"
PS-OB2
Main Breaker/Large Frame Lockout Set
On large frame breakers where the handle thickness (size) and the
ability to mount a standard PanelSafe
™
unit is not applicable, a main
breaker lockout is used either separately, as shown at right, or in
conjunction with the main breaker brackets as shown below. Includes
one each: PS-MB, PS-BS, PS-MP.
PS-MB
Main Breaker Bracket
When a main breaker lockout cannot be directly attached to the dead
front because of extended breaker casing, a pair of main breaker
brackets must be used. The main breaker lockout is attached to the
bracket which is expanded and attached to the insides of both sides of
the panel. A brace (see below) and main breaker pin (see below) must
also be used. Main breaker brackets are sold in pairs only.
PS-BK
Main Breaker Brace
Used in conjunction with the main breaker bracket (shown above) this
brace is attached to the bracket which is then expanded and attached
to the insides of both sides of the panel. The assembly is positioned
below the breaker handle acting as a receptacle for the main breaker
pin (shown below).
PS-BS
Main Breaker Pin
A main breaker pin is used only with the main breaker lockout to
lockout a large frame breaker.
PS-MP
3M PanelSafe Lockout System
Frequently Asked Questions
™
™
What is PanelSafe?
PanelSafe is a device, which is permanently mounted to the
dead front of a circuit breaker panel that allows individual
or multiple circuits to be locked off simultaneously.
Why is it important to lock off circuits?
OSHA, in its standard 1910.147, requires power to be
locked off at the power source any time routine
maintenance of equipment, lighting or machinery is being
performed. The procedure is called lockout/tagout.
How is PanelSafe attached to the dead front?
It should be attached using the self-tapping screws that are
provided (no shavings will fall into the panel). It is a good
practice to always turn off the power.
Will it fit all my panels or just the Square D
load center that I see in your literature?
It will fit any manufactured panel.
How can PanelSafe work on any panel?
It works based on the distance of the centers from breaker
handle to breaker handle. You start by measuring the
distance from the center of the top breaker to the center of
the breaker handle directly beneath it. Then you count the
number of breakers on one side of the panel. Using these
two measurements you are ready to order the proper unit.
Suppose the panel has a bead running down
the center keeping the PanelSafe unit from
laying flat?
On distribution panels (usually GE) where a raised, round
bead runs down the center of the dead front the slotted
shim (PS-SH2) must be used. It fits over the bead and
provides a flat surface on which to mount the PanelSafe
unit. These are available only in pairs.
I have ITE panels and they have a V notch
extending down the length of the dead front.
Can PanelSafe work on these units?
Yes, you would use the V-notch shim, PS-SH4 to make the
installation.
I have a destruction panel where the body of
each breaker extends out beyond the level of
the dead front. How do I remedy that?
By using either PS-SH1, which is an 1/8" shim, or PS-SH3,
which is an 1/2" shim. This shim is used primarily on
Square D and some GE panels where the breaker is exposed
1/2" above the dead front. If either of these doesn’t work
then you may have to make a shim that will fit correctly.
Maintenance people should have no trouble figuring this out.
When are offset brackets used?
They are used with a PanelSafe unit when breakers are
recessed below the dead front and no area is available to
mount a PanelSafe unit by standard means. Theses are only
available in pairs and are either 2" long (PS-OB1) or 3 1/2"
long (PS-OB2).
Suppose I can’t mount a PanelSafe unit down
the center of a panel.
This would probably occur because there is no center (only
the plastic breaker casing) or because the pins used to
secure the breaker in the off position will not reach the
breaker handle in the off position. These panels require
multiple PanelSafe units and in many, if not most cases,
offset brackets. The offset brackets, PS-OB1 or PS-OB2,
may be mounted to the rise on the outside of the panel.
The PanelSafe is then attached to the offset brackets.
Remember, if you are mounting the PanelSafe on offset
brackets, you will now need to Pull the breaker to the off
position because the unit is positioned to the outside of the
breaker handle. This requires that a hook pin (PS-HP) be
used. It would probably be wise to order an extra package
of hook pins when this situation occurs.
Can I lockout twin, half-size or piggyback
breakers?
Yes. Where twin or piggyback breakers are being used,
you should order PS-SP05. This pin allows you to lockout
either twin alone by simply rotating the pin 180° for either
the top or bottom breaker.
You mention in the literature that a circuit can
be secured “on”. Where would it make sense
to do that?
A circuit can be secured “on” when it is powering something
that you don’t want inadvertently turned off. Examples would
be fire alarm systems, computer systems, runway lights at
airports, etc. Drug companies particularly like this feature
since they often have experiments running that would be
rendered useless if the power would be turned off.
If the circuit is secured “on”, will it trip?
Yes, it will still trip because the breakers trip internally.
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