IC10 13.book Seite 20 Donnerstag, 19. Januar 2012 2:24 14 Siemens AG 2012 3SB3 Pushbuttons and Indicator Lights, 22 mm General data Overview Front plate mounting D C B E D A F C B A A Actuator B Front plate C Holder D Contact block E Lampholder F Support element For actuators see page 13/25 to 13/62. For contact blocks and lampholders see page 13/63 to 13/65. For holders see page 13/66. Mounting on printed circuit boards G F E D C B A DD A A Actuator A B Front plate C Holder D Holder for printed circuit-board E Lampholder F Contact block G PCB For contact blocks for use on printed circuit boards see page 13/66. Siemens IC 10 2012 13/20 13 NSD0 00029b NSD0 00030bIC10 13.book Seite 21 Donnerstag, 19. Januar 2012 2:24 14 Siemens AG 2012 3SB3 Pushbuttons and Indicator Lights, 22 mm General data Design Standards The 3SB3 series is a modular range of commanding and signal- IEC 60947-1, EN 60947-1, ing devices for front panel mounting and rear conductor connec- IEC 60947-5-1, EN 60947-5-1, tion. As an alternative, individual elements can also be supplied IEC 60947-5-5, EN 60947-5-5 for EMERGENCY-STOP mush- for use on printed circuit boards. Complete units are offered for room pushbuttons. the most commonly used applications. Connection methods The devices are available with screw terminals (box terminals), spring-type terminals or solder pins. Screw terminals Spring-type terminals Solder pin connections The terminals are indicated in the corresponding ta- bles by the symbols shown on orange backgrounds. Application The devices are climate-proof (KTW 24) and suitable for stan- Actuators and indicators and complete units dard industrial applications and operation in marine applica- The 3SB3 series is available: tions. For operation in oily atmospheres (organic oils/lubricants) we recommend actuators which are marked assolvent-resis- Made of molded plastic in flat, round and square design tan. Made of metal in round design. AS-Interface solutions The devices are of modern industrial design and can be mounted rapidly by a single person. The operating surfaces of The 3SB3 commanding and signaling devices can be con- the pushbuttons and illuminated pushbuttons are concave. The nected to the AS-Interface communication system quickly and lenses of the indicator lights are convex. safely with the help of various solutions. The metal version with a high degree of protection according to The following solutions are available: IP67 and NEMA 4 is available for the world market. ASIsafe EMERGENCY-STOP mushroom pushbuttons One command point comprises: (see page 13/67) An actuator or lens assembly in front of the control panel AS-Interface enclosures with 1 to 6 command points (see page 13/96). A holder for mounting behind the control panel AS-Interface front panel modules for 4 command points Up to 3 contact blocks and/or 1 lampholder behind the control (see Catalog IK PI) panel A comprehensive range of accessories for inscriptionIntrinsic safet type of protection EEx i according to ATEX directive 94/9/EC Two contact blocks can be snapped onto the actuator in the standard version. The pushbuttons and indicator lights in round design can also be used in hazardous areas. The 3SB34 ..-0. contact blocks and When three contact blocks or illuminated actuators are required, the 3SB34 ..-1A lampholders (with 3SB39 01-1.A LED lamp) with an additional holder must be plugged onto the actuator from the screw terminals or spring-type terminals can be used. rear. See www.siemens.com/sirius/atex. 3SB39 01-0AB holder for 3 contact blocks or for 2 contact blocks and 1 lampholder Safety EMERGENCY-STOP pushbuttons according to 3SB39 01-0AC holder with pressure plates for actuating a ISO 13850 central contact block when using a selector switch, key-oper- For controls according to IEC 60204-1 or EN 60204-1, the mush- ated switch and twin pushbutton with 3 contact blocks. room pushbuttons of the 3SB3 series are suitable for use as safety EMERGENCY-STOP pushbuttons. For illuminated pushbuttons, illuminated switches and illumi- nated selector switches the holder is included in the scope of Safety circuits supply as standard. IEC 60947-5-1 and EN 60947-5-1 require positive opening, The contact blocks are fitted with slow-action contacts with dou- i.e. for the purposes of personal safety, the assured opening of ble operating contacts. These ensure a high switching reliability NC contacts is expressly stipulated for the electrical equipment even with small voltages and currents, such as 5 V/1 mA. They of machines in all safety circuits and marked according to are suitable for use in solid-state systems as well as conven- IEC 60947-5-1 with the symbol q. tional controls. Category 4 according to EN 954-1 can be attained with the EMERGENCY-STOP mushroom pushbuttons if the correspond- ing failsafe evaluation units are selected and correctly installed, e.g. the 3TK28 safety relays or matching units from the ASIsafe, SIMATIC or SINUMERIK product ranges. Siemens IC 10 2012 13/21 13