80 Ampere Miniature Direct Current Contactors P C 6 0 ,

80 Ampere Miniature Direct Current Contactors PC60 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...

Please note: Contactors fitted with auxiliary contacts cannot be fully protected against unfriendly These have closed contact housings, and are assembled with rubber gaskets to inhibit the ingress of moisture or other contamination. They These versions can be washed after soldering to the board and may be used in dirty or wet Washable Contactors with Auxiliary Contacts 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...

SEPARATE MOUNTING BASE MB60 PC60 with Mounting Base Normally Open Contactor (SP ST NO) MB61 PC61 with Mounting Base MB63 PC63 with Mounting Base Normally Closed Contactor (SP ST NC) 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 Removal for servicing or replacement is possible contactor from the base. OPTIONAL AUXILIARY (SHOWN FITTED) CONTACT PINS " CONTACT PINS CIRCUIT BOARD CONTACT...

FREESTANDING MINIATURE These are freestanding contactors and are more conventionally configured: they have M6 main terminals, 0.25" (6.3mm) coil terminals and a selection of alternative mountings are available. Magnetic Blowouts The contactors can be fitted with magnetic blowouts for switching current at higher DC voltages (guide: >60V for resistive loads and >48V 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...

MOUNTING OPTIONS MOUNTING PLATE' ALTERNATIVE POSITIONS 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. 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. STANDARD...

S U M M A R Y O F T Y P E S A V A I L A B L E Contactor Key: SP = Single Pole; ST = Single Throw; DT = Double Throw; NO = Normally Open; NC = Normally Closed Printed Circuit Board Versions PC60 Single Pole On/Off Normally Open Contactor PC60 PC60A PC60B PC60P PC60A.W PC60M SP ST NO SP ST NO with 5A SP DT auxiliary contact fitted SP ST NO with magnetic blowouts SP ST NO protected against the environment SP ST NO washable with separately supplied auxiliary contact SP ST NO with magnetic latching PC63 Single Pole On/Off Normally Closed Contactor SP DT SP DT with 5A SP DT auxiliary contact fitted...

PERFORMANCE DATA Thermal Current Ratings (100%) (a) When main contacts are connected to well ventilated conductors having adequate cross sectional areas and when switching of main contacts is infrequent, continuous currents up to 80 Amperes DC may be carried. (b) When more arduous switching duties are required and when main conductors are reduced in size or are insulated, some reduction of thermal current may be necessary. The Following Direct Currents May Be Carried on Reduced Duty Cycles: Duty 80 Ampere Rating Typical Inductive Fault Currents Which Can Be Ruptured (5ms Time Constant) Without...