Product category:
Mid-range and Large PLCs
News Release from: Siemens Automation and Drives | Subject: Sirius solid-state switching devices
Edited by the Engineeringtalk Editorial
Team on 22 August 2007
Devices handle frequent switching
New Sirius solid-state switching devices tolerate frequent switching of motors.
Siemens Automation and Drives (AandD) is supplementing its range of Sirius solid-state switching devices with versions for frequent switching of motors These new three-phase solid-state contactors have two-phase control throughout and can switch motors up to 7.5kW
This article was originally published on Engineeringtalk on 6 Mar 2001 at 8.00am (UK)
Related stories
Safety network compatible with exisiting bus types
Siemens Automation and Drives recently launched its own Safety Integrated initiative, which includes everything from failsafe PLCs and I/O modules to emergency stop buttons and light curtains.
New guidelines for variable speed drives + motors
While the connection between motor and inverter supply is usually straightforward, there are still a number of issues which need to be carefully considered, as this article explains
The new solid-state switching devices are offered in construction widths of 45 and 90mm, depending on power rating.
A special reversing contactor version can be used for three-phase AC motors up to 3kW in anticlockwise-clockwise rotation.
Through integration into the Sirius modular system, the new solid-state switching devices can be set up quickly and simply with a connecting device and a Sirius circuit breaker as compact, fuseless motor feeders.
In addition, fused motor feeders can also be implemented in conjunction with an Sirius overload relay.
Depending on system requirements, the user can choose between voltage versions up to 480 or 600V.
The 24V DC control voltage guarantees safe operation on digital controllers, and in simple circuit arrangements versions with control voltages of 230V AC can also be used.
For installation, spring-loaded terminals for applications with high shock and vibration loads are offered in addition to screw-type terminals.
The removable control connector enables pre-wiring of the control circuit and thus fast setup of the complete motor feeder.
Integral interlocking in the solid-state reversing contactor ensures safe operation in the case of anticlockwise-clockwise rotation.
• Siemens Automation and Drives: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
