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
