Our consideration of both IEC directives as well as UL standards as early as in our products’ development phase results in a broad portfolio of UL-certified products for low-voltage switching and protection technology.
Whether SENTRON circuit breakers, SIRIUS switching
devices – including manual motor controllers, starters, contactors and
overload relays –, SENTRON disconnect switches, SIRIUS detecting and commanding
devices, busbar systems, terminals, miniature circuit breakers, fuses or SIRIUS
transformers and filters – our portfolio of low-voltage controls and distribution
products ensures your being on the safer side in terms of UL and facilitates
the easy and fast assembly of control panels according to UL.
The SENTRON 3WL air circuit breakers are particularly flexible. With only three sizes, they cover a power range from 250 A to 5000 A. This makes them uncomplicated and universally applicable. All models feature the same design, operation and mechanical accessories. Result: Unique planning reliability and global applicability – with a single circuit breaker range!
Covering the range from 20 A to 1600 A, the SENTRON 3VL molded-case circuit breakers
provide safety while simplifying operation. As main disconnecting means or as
branch circuit protector, they protect systems, motors and generators against
short circuit and overload. Their versatile Industrial Control Panel installation
options as well as their space-saving design are major advantages.
The 3RV17/18 are compact circuit breakers with 100% rating. They guarantee secure
disconnection in case of a short circuit and protect consumers and system against
overload.
SIRIUS 3RV10 manual motor controllers are compact switching devices. Depending
on the application (and on the UL approval), they guarantee secure disconnection
in case of a short circuit and protect motors against overload.
SIRIUS contactors for motor switching as well as contactor relays for the control and auxiliary circuit are particularly rugged and feature a high switching contact reliability. They cover the power range from 3 kW to 250 kW with 400 V for AC or DC actuation and can be connected with minimum time and cost expenditures. Their long service life even under extreme application conditions is a convincing advantage.
The overload relays of the SIRIUS range, which are available as thermal and solid-state versions, assume the current-dependent overload protection of consumers in the power circuit and other switching and protection devices in the respective load feeder. With minimum variance, they ensure integrated motor protection in numerous applications.
SIRIUS 3RW soft starters offer a complete portfolio which covers all standard and high-feature applications of soft motor start-up and ramp-down. Their soft start-up and ramp-down behavior facilitates jerk-free motions to protect the motors’ mechanics. The soft starter range can be flexibly adjusted to the various conditions on site and thus allows for the easy and efficient realization of optimum machine concepts.
SIRIUS 3RA fuseless load feeders are assembled from 3RV self-protected combination motor controllers (type E) and 3RT contactors. Thanks to their integrated pre-wiring, the fuseless load feeders can be rapidly and easily mounted. They are the optimum solution particularly for distributed and wide-spread system structures.
The SENTRON 8US busbar system (Fast bus system) is ideal for applications in Industrial Control Panels, motor control centers and power distribution systems. The adapters, which are amongst others available for SIRIUS and SENTRON circuit breakers as well as SENTRON disconnect switches, facilitate numerous assemblies.
The particularly compact 3LD2 manual motor disconnect units are employed for the switching of power and auxiliary circuits as well as for three-phase motors and other consumers for maintenance and repair cases. Amongst others, they facilitate the cable bending radius specified by UL.
SENTRON disconnect switches in three-pole design assume the tasks "disconnecting" and "switching under load" for the stated rated current and guarantee safety disconnection in all low-voltage networks. They are thus predestined for use as EMERGENCY-STOP, repair or load transfer switch. (According to UL, only applicable with SITOR fuses – special purpose fuse.)
SIRIUS transformers offer optimum protection through high permissible ambient temperatures up to 40 °C or 55 °C (104 °F or 131 °F), high short-time rating with control transformers, fuseless design and their "safety inside" standard in accordance with IEC 61558. They are employed for the voltage and power supply of systems, controls and series products (medical engineering, machine tool construction, robots and compressors).
SIDAC reactors and filters can be used as options for variable-speed drives in all sectors and applications. They improve the line quality and efficiency of systems by reducing harmonics, increase the reliability of applications and thus enhance the availability of installations and systems. The portfolio comprises line, commutation, smoothing, output and filter reactors as well as radio interference suppression, dv/dt and sinewave filters.
The 5SJ4 ...-.HG miniature circuit breakers of the BETA low-voltage circuit protection portfolio can be used as "branch protector" for protection tasks in branches, distribution boards, Industrial Control Panels and controls in accordance with UL 508A. Furthermore, they are also approved for circuit protection in heating, air-conditioning and ventilation systems.
Within the scope of the UL 1077 standard, we offer a series of miniature circuit breakers for various residential and functional building as well as industrial applications.
Whether central or distributed assembly in the industrial control panel or in high degree of protection in the field – SIRIUS motor starters are always an optimum and easy solution. The motor starters of the ET 200S system are, for example, suitable for central assembly in the control panel or for distributed solutions directly in the field. The distributed I/O system SIMATIC ET 200pro is ideal for complete solutions in particularly high degree of protection thanks to its modular design.
SIMOCODE pro is a flexible and modular motor management system for motors with constant speeds in the low-voltage range. It optimizes the connection between control technology and motor starter, improves the system availability and simultaneously facilitates considerable savings in terms of system construction, commissioning, operation and maintenance.
The very narrow SIRIUS 3TX70 coupling relays allow for particularly space-saving assemblies in the control panel and offer a large range of input and output coupling links.
SIRIUS LZX plug-in relays are both available as complete units and as individual modules for self-assembly or spare parts requirements. They are employed as coupling relays for coupling between the inputs and outputs of electronic controls, for contact multiplication, for switching of small loads and as measuring transducer.
With a width of only 36 mm, the compact SIRIUS 3TG10 power relays / small contactors are particularly suitable for applications in minimum space, e.g. for air-conditioning units, heatings, pumps, fans – as well as generally for simple electric controls. Thanks to their hum-free operation, they are also ideally suited for application in household appliances or power distributions in office and residential buildings.
SIRIUS solid-state switching devices are optimized for the frequent switching of resistive loads and motors. They do not feature any mechanically moved parts and therefore facilitate noise-free, wear-free and almost unlimited switching. Their compact design allows for space-saving assemblies in the control panel.
The electronic SIRIUS 3RP timing relays are employed for all time-delayed switching operations in control, start-up, protection and regulation circuits. They ensure a high functionality as well as a high repeat accuracy of the set operating time.
The electronic SIRIUS 3UG4 monitoring relays facilitate the maximum protection of non-stationary machines and systems – particularly in instable networks. Line and voltage faults can be detected and rectified early before leading to more substantial damage.
The SIRIUS 3RS10/3RS11 temperature monitoring relays, which are available as analog and digital versions, offer precise and reliable measurement of temperatures in solid, liquid and gaseous media.
SIRIUS 3RS17 interface converters assume the coupling function for analog signals, both on the input and the output side. They are indispensable for the processing of analog values with electronic controls.
SIRIUS 3SE5 standard position switches with and without solenoid interlocking convert the mechanical positions of moved machine parts to electronic signals. They are available with a multitude of different drive variants.
SIRIUS 3SE6 magnetically operated switches are designed for attachment to mobile protective devices. Evaluation is realized via a safety relay or connection to a bus system. The touch-free magnetically operated 3SE6 safety switches are characterized by their closed design and high degree of protection IP67.
SIRIUS pushbuttons and indicator lights are characterized by maximum functionality, their modern and flat design as well as particular ease of mounting.
SIRIUS 8WD4 signaling columns are employed for checking complex machine functions or in automated processes and serve as visual or acoustic warning device.
The ALPHA 8HP molded-plastic distribution system is suitable for the assembly of small low-voltage distribution boards, control panels and power distribution boards.
The 7LF digital and mechanical time switches of the latest generation offer numerous functions and ease of handling. The digital timing of process sequences ensures profitable power savings.
Time and pulse counters are employed for the reliable detection of production and service times. They facilitate an accurate planning and monitoring of production sequences, maintenance cycles and warranty periods.
In combination with SITOR fuse links, the LV HRC Fuse Bases of the BETA low-voltage circuit protection portfolio ensure the reliable protection of power semiconductors.
The 5TE1 switch disconnectors from 100 A to 200 A in 3- and 4-pole design can be employed as motor disconnect switch, repair switch, outgoing isolator and emergency disconnector unit.
The 5TE receptacles are for example employed for the connection of plug-in communication devices in communication distribution boards or in switchboards for maintenance purposes.
The innovative SENTRON PAC3200 Power Monitoring Device, which can be connected
to a wide range of load types, allows you to record electrical parameters and
energy precisely. The results can be displayed on the device resp. centrally
evaluated using power management software such as SIMATIC WinCC powerrate or
SIMATIC PCS 7 powerrate.
Efficient Construction of Industrial Control Panels
Efficiency
High solution flexibility through comprehensive and matched product portfolio, from the supply of the industrial control panel to the machine’s smallest actuator
Easy stock keeping of SENTRON and SIRIUS switching devices as well as BETA low-voltage circuit protection devices through the products’ universal applicability (IEC-UL/CSA)
Uniform operation and maintenance concept through our standard system
Professionalism/Authoritative
Comprehensive UL know-how by Siemens through long-standing close cooperation with
Underwriters Laboratories Inc.
Secure UL connection through strong and reliable product
and system portfolio which considers UL right from the development phase
Easier and faster commissioning through competent UL consulting services
We can also provide support through our UL certified manufacturer in Chemnitz when it comes to configuring, manufacturing, and supplying complete industrial control panels.
Efficient and Safe Operation of Industrial Control Panels
Efficiency
Reduced costs through matched product interfaces
Easy expandability and retrofitting through modular products and systems
Minimum space requirements through compact designs
Comfortable and efficient on-site operation through ease of handling
Professionalism/Authoritative
Comprehensive UL know-how as well as proven UL portfolio through long-standing close cooperation of Siemens with Underwriters Laboratories Inc.
Easy expandability and retrofitting through globally available products
Support
Fast and competent product consulting through global presence
We can also provide support through our UL certified manufacturer in Chemnitz when it comes to configuring, manufacturing, and supplying complete industrial control panels.
Efficiency
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Our Portfolio for Industrial Control Panels
Air Circuit
Molded-
Circuit
Motor
Contactors
Overload
Soft
Fuseless
Busbar
Manual
Disconnect
Trans-
Power
Reactors
Miniature
Miniature
Motor
Motor
Coupling Relays
Plug-in
Power
Solid-state
Timing Relays
Monitoring
Temperature
Thermistor
Interface
Position
Magneti-
Cable-
Pushbutton
Signaling
Molded-
Terminal
Time
Time
LV HRC
Fuse
Semi-
Switch
Receptacles
Insta Contactors
Power
Pre sales info
Low-Voltage Controls and Distribution