PC60, MB60 & SW60
80 Ampere
Miniature Direct Current Contactors
SW60A
PC60A
The “PC60”, “MB60” & “SW60”
are a new family of miniature
direct current contactors and
solenoid switches which are
designed to fill the gap between
30 ampere relays and 100
ampere contactors.
The family is divided into two distinct
branches, PC60/MB60 for printed circuit board
mounting and SW60 free standing contactors and each has
its own selection of variations and options.
These are unique designs for printed circuit board mounting
and the following variations and configurations are
available:
80 Ampere
Miniature
Direct Current
Contactors
PC SERIES
PCB MOUNTING
MINIATURE DC CONTACTORS
2
The Use of
Miniature DC
Contactors
The “PC”, “MB” & “SW”
contactors represent a
novel dual approach to
the requirements for DC
contactors.
On the one hand the
expansion of
Telecommunications Systems,
UPS and other Power
Conversion Systems has
led to a demand for
compact, easily installed
and economically priced
contactors which up until
now have not been available.
With the introduction of the
“PC60” & “MB60” contactors,
this demand has now been
effectively met.
On the other hand the “SW60”
range fulfills the requirements
for more traditional DC
contactor applications:
switching or reversing small
traction motors, hydraulic
power packs, small electric
winch motors, etc.
All the contactors are
manufactured to a very high
standard and employ best
quality materials: phenolic
contact housings, silver alloy
contacts and Class H (180°C)
winding wire for the coils.
Silver plated heavy current and
gold plated light current
components are also used on
the “PC60” & “MB60”
contactors.
These new contactors are a
unique and innovative
introduction from the world’s
leading manufacturer of DC
contactors.
Magnetic Blowouts PC60B, PC61B & PC63B
The contactors can be fitted with magnetic blowouts for switching
current at higher dc voltages (guide: >60V for resistive loads and
>48V for inductive loads).
If the application calls for frequent switching under these conditions, it
is recommended that a contact housing with open apertures is
specified. This is available as a no cost option.
When fitted with magnetic blowouts it is important that the correct
polarity for the main terminal connections is observed.
Auxiliary Contacts PC60A, PC61A & PC63A
A double circuit changeover 5 ampere microswitch auxiliary contact
can be provided.
This is fitted in a purpose designed holder with gold plated pickups for
the microswitch terminals and pins for soldering direct to a printed
circuit board.
TYPE NO. DESCRIPTION
PC60 Single Pole On/Off
Normally Open Contactor (SP ST NO)
PC61 Single Pole Changeover Contactor
(SP DT)
PC63 Single Pole On/Off
Normally Closed Contactor (SP ST NC)
PC60
80 Ampere
Miniature
DC Contactors
from...
Protected Versions PC60.P, PC61.P & PC63.P
These have closed contact housings, and are
assembled with rubber gaskets to inhibit the
ingress of moisture or other contamination. They
are protected to IP66.
These versions can be washed after soldering to
the board and may be used in dirty or wet
environments.
Washable Contactors with Auxiliary Contacts
PC60A.W, PC61A.W & PC63A.W
Normally the auxiliary contacts are supplied already fitted to the contactor
but if the printed circuit boards are to be washed after soldering, the
auxiliary contact is supplied separately and the contactor is temporarily
sealed with a rubber plug which is removed after washing and the
auxiliary contact is then fitted.
The contactors are not therefore fully protected against the environment to
the same degree as the PC60.P, PC61.P and PC63.P.
Installation
To accommodate the ”PC” contactors, printed circuit boards should be drilled
in accordance with the drawing on page 4.
Prior to soldering, the PC60, PC61 and PC63 can be secured to the circuit board
by means of a M4 bolt which protrudes from the underside of the contactor.
If the full current ratings of the contactors are to be utilised, circuit board
tracks should have the appropriate
thickness and width of copper.
Conventional hand or wave soldering
techniques can be used and if the
circuit board is to be washed the
appropriate PC60.P, PC61.P, PC63.P
or PC60A.W, PC61A.W, PC63A.W
should be specified.
PC SERIES
PC60/61/63
3
Explanation of Type Numbers
PC60-A-B-P-W-M
Magnetic Latching
Washable Contactors
Rubber Gasket Protection
With magnetic blowouts
With auxiliary contacts
Main type number
PC60A
Dimensions in mm (inches).
Please note:
Contactors fitted
with auxiliary contacts
cannot be fully protected
against unfriendly
environments.
All versions of “PC” contactors can be supplied
with a separate mounting base which can be
soldered to the circuit board.
After soldering and washing the printed circuit
board, the ‘PC’ contactor can be plugged into the
base and secured by means of a nut on the
underside of the board.
Removal for servicing or replacement is possible
by removal of the nut and unplugging the PC
contactor from the base.
4
MB SERIES
MB60/61/63
80 Ampere
Miniature
DC Contactors
from...
TYPE NO. DESCRIPTION
MB60 PC60 with Mounting Base
Normally Open Contactor (SP ST NO)
MB61 PC61 with Mounting Base
Changeover Contactor (SP DT)
MB63 PC63 with Mounting Base
Normally Closed Contactor (SP ST NC)
PC/MB
MOUNTING
DETAILS
MB SERIES
CONTACTORS WITH A
SEPARATE MOUNTING BASE
Dimensions in mm (inches).
MB60A
Magnetically Latched PC60, MB60 and SW60
PC60M, MB60M & SW60M
The contactors can be supplied with magnetic latching - one short pulse to
close the main contacts - one short pulse to reopen them again.
The result is a bi-stable device, the coil of which consumes no power except
during the closing and opening strokes, and because there is in effect no
heating of the coil, the contactors can be engineered in the first place with
more powerful coils and springs than with conventional contactors.
Contact ratings and all external dimensions are identical to those of the
equivalent types which have conventionally energised coils.
Similarly all the additional features which are available with the other PC60
and SW60 types can be found with the magnetically latched versions, eg
auxiliary contacts, magnetic blowouts for the main contacts, protected, etc.
For more details of the operation of the “M” versions, please see the Albright publication:
“Power Consumption Reduction for Albright Contactors”.
Installation
Mounting is by M4 tapped holes in the contactor frame
together with a selection of mounting brackets.
Standard arrangement is for the contactors to be supplied
with two M4 holes on each side of the contactor
frame to allow direct attachment to panels etc.
For other options see left.
Paired Contactors SW64 & SW66
The contactors can be supplied in assembled pairs with
the appropriate connecting links. In the case of the
SW66, the contactor is configured with links for motor
reversing. The resultant circuit is failsafe so that if
both coils are energised simultaneously, an open
circuit results.
6
SW64/66
Please Note.
Very Important:
Magnetically latched
contactors do not fail safe.
If there is a power failure, or
if the supply to the contactor
coil is broken, the contactor
contacts will not open or
close, ie the contactor will
not change state.
These devices should not
therefore be used in
applications where the failure
of contacts to open or close
could result in a hazardous
situation for persons or
equipment.
PC, MB & SW SERIES
MAGNETICALLY LATCHED
DC CONTACTORS
Dimensions in mm (inches).
SW66A
PC60 Single Pole On/Off
Normally Open Contactor
PC60 SP ST NO
PC60A SP ST NO with 5A SP DT
auxiliary contact fitted
PC60B SP ST NO with magnetic
blowouts
PC60P SP ST NO protected
against the environment
PC60A.W SP ST NO washable with
separately supplied
auxiliary contact
PC60M SP ST NO with magnetic
latching
7
PC63 Single Pole On/Off
Normally Closed Contactor
PC63 SP ST NC
PC63A SP ST NC with 5A SP DT
auxiliary contact fitted
PC63B SP ST NC with magnetic
blowouts
PC63P SP ST NC protected
against the environment
PC63A.W SP ST NC washable with
separately supplied
auxiliary contact
SW66 Paired Single Pole Changeover Contactor
SW66 2 x SW61 SW66A 2 x SW61A
SW64 Paired Single Pole On/Off Normally Open Contactor
SW64 2 x SW60 SW64P 2 x SW60P
SW64A 2 x SW60A SW64M 2 x SW60M
SW64B 2 x SW60B
SW63 Single Pole On/Off
Normally Closed Contactor
SW63 SP ST NC
SW63A SP ST NC with 5A SP DT
auxiliary contact fitted
SW63B SP ST NC with magnetic
blowouts
SW63P SP ST NC protected
against the environment
SW61 Single Pole
Changeover Contactor
SW61 SP DT
SW61A SP DT with 5A SP DT
auxiliary contact fitted
SW61B SP DT with magnetic
blowouts
SW60 Single Pole On/Off
Normally Open Contactor
SW60 SP ST NO
SW60A SP ST NO with 5A SP DT
auxiliary contact fitted
SW60B SP ST NO with magnetic
blowouts
SW60P SP ST NO protected
against the environment
SW60M SP ST NO with magnetic
latching
MB61 Single Pole
Changeover Contactor
with Mounting Base
MB61 SP DT
MB61A SP DT with 5A SP DT
auxiliary contact fitted
MB61B SP DT With magnetic
blowouts
MB61A.W SP DT washable with
separately supplied
auxiliary contact
MB63 Single Pole On/Off
Normally Closed Contactor
with Mounting Base
MB63 SP ST NC
MB63A SP ST NC with 5A SP DT
auxiliary contact fitted
MB63B SP ST NC with magnetic
blowouts
MB63A.W SP ST NC washable with
separately supplied
auxiliary contact
MB60 Single Pole On/Off
Normally Open Contactor
with Mounting Base
MB60 SP ST NO
MB60A SP ST NO with 5A SP DT
auxiliary contact fitted
MB60B SP ST NO with magnetic
blowouts
MB60A.W SP ST NO washable with
separately supplied
auxiliary contact
MB60M SP ST NO with magnetic
latching
PC61 Single Pole
Changeover Contactor
PC61 SP DT
PC61A SP DT with 5A SP DT
auxiliary contact fitted
PC61B SP DT with magnetic
blowouts
PC61P SP DT protected against
the environment
PC61A.W SP DT washable with
separately supplied
auxiliary contact
Printed Circuit Board Versions
“PC” Contactors with Mounting Bases
Free Standing Versions
Contactor Key: SP = Single Pole; ST = Single Throw; DT = Double Throw; NO = Normally Open; NC = Normally Closed
The options ‘A’, ‘B’ & ‘M’ may be mixed, as may ‘B’, ‘P’ & ‘M’; but note ‘A’ & ‘P’ are not possible. ‘A’ & ‘W’ can however be mixed (see text)
The options ‘A’, ‘B’ & ‘M’ may be mixed, as may ‘B’, ‘P’ & ‘M’; but note ‘A’ & ‘P’ are not possible. ‘A’ & ‘W’ can however be mixed (see text)
The options ‘A’, ‘B’ & ‘M’ may be mixed, as may ‘B’, ‘P’ & ‘M’; but note ‘A’ & ‘P’ are not possible.
SUMMARY OF TYPES
AVAILABLE
