Automation, switchgear and process control. Industrial processes demand the highest precision and perfectly orchestrated workflows. CTB delivers complete automation and switchgear solutions from a single house — from electrical engineering through switchgear manufacturing and PLC programming to commissioning and plant support. Brand-neutral, standards-compliant and ready for international deployment.
Engineering. Switchgear. PLC/SCADA. Commissioning. After-sales — from a single house.
Automation in plant engineering
Industrial automation and process control for economical plant processes.
Automation technology is an essential success factor and accounts for an ever-growing share of total value-add in plant engineering. Industrial processes require the highest precision and perfectly orchestrated workflows — the reward is measurable gains in productivity and efficiency.
From the chemical to the semiconductor industry — brand-neutral, standards-compliant and deployed internationally since 1992.
Industrial services
Industrial plant services in detail.
Six in-depth detail pages for typical industrial plant projects. Each page covers sector-specific components, standards and use cases from machine, plant and process engineering.
Industrial-plant reportage from workshop and commissioning.
Four glimpses of daily CTB work: planning discussion at the flow scheme, factory acceptance with the customer (FAT), on-site commissioning checks with a measurement device, and after-sales standby for the next service call.
Concept phase
Planning & concept optimisation
In the Lebring engineering office, a CTB colleague discusses optimisation opportunities at the flow scheme together with the customer — before the first component is ordered.
FAT prior to shipment
Factory Acceptance Test in Lebring
Prior to shipment, the customer performs a factory acceptance on the switchgear — function, labelling and test protocols against the specification.
Initial inspection
Commissioning check with measurement device
On-site at the industrial plant: a CTB colleague performs electrical safety and functional checks with a measurement device — a prerequisite for proper plant start-up.
SLA & service
After-sales standby
CTB service colleagues are ready for the next plant call: remote maintenance via VPN, spare-parts pool, SLA response times and retrofit advisory. We look after your plant, also when everything runs smoothly.
14 cabinets • EN 61439 • B&R Profinet
Reference profile: food-industry production plant, Bavaria (2024)
Anonymised reference profile: 14 control cabinets to EN 61439 for a food-industry production plant in Bavaria. Profinet I/O network with B&R Automation Studio, hygienic-design wiring and commissioning including FAT and SAT.
ATEX 2014/34/EU • EN 60079 • EN 61439
Reference profile: paint shop with ATEX zone, Austria (2023)
Anonymised reference profile: intrinsically safe control technology to EN 60079 for a paint shop with an ATEX zone in Austria. Scope: explosion protection to ATEX directive 2014/34/EU, separated Ex / non-Ex control cabinets to EN 61439, ventilation interlock and gas-detection integration into the plant control system.
Workflow
From specification to supported plant — six engineering phases.
01assignment
Planning & project management
We support you right from the start: requirements analysis, specification review, identifying optimisation potential in automation technology, project steering and project execution.
02draw
Electrical engineering
Efficient detail engineering with modern CAE systems such as EPLAN Electric P8 + Pro Panel or WSCAD. Execution to international standards (IEC 60617 DB, EN 62061), economical equipment dimensioning, SIL advisory to IEC 61508 / IEC 61511. More: Electrical Engineering & Circuit Design.
03code
Programming / software
Standardisation to EN 61131-3 (Structured Text, FBD, LD), safety and redundancy control for high operational reliability, communication with upstream systems via Profinet, EtherCAT, Modbus and OPC UA, specification drafting and multilingual documentation. More: Control & Regulation Technology.
04monitor
Visualisation & HMI
User-friendly visualisation systems such as WinCC, B&R mapp View or LabVIEW — clear process representations, fast fault diagnostics, Wi-Fi HMIs for commissioning and maintenance tasks.
05build
Switchgear & wiring
Manufacturer of power and control distribution boards to EN 61439-1/-2, suitable for modernisation and refurbishment, energy-optimised, packed sea-worthy for worldwide shipping. International experience in switchgear and wiring.
06verified
Commissioning & after-sales
FAT in Lebring and SAT on site, functional inspection against the specification, mandatory initial inspections, worldwide commissioning support as well as after-sales service with maintenance, spare-parts management, remote maintenance, regular inspections and retrofit.
What we deliver
Key data for our industrial switchgear and MCC assemblies.
Motor Control Centres (MCC) and variable-frequency drive cabinets are the backbone of energy distribution in industrial plants. We build them as compact stand-alone solutions or as multi-bay row assemblies — dimensioned precisely for your application.
Power classes and form factors
Power classes
Standard up to 3,200 A; busbar systems up to 4,000 A to EN 61439-1/-2; higher classes via modular concept
Form factors
Form 1 to Form 4b (internal separations), outdoor or climate-controlled versions for food and pharma industries
Variable-frequency drives
Siemens SINAMICS, ABB ACS580/880, Schneider Altivar, Danfoss VLT — with dedicated cooling (Rittal Blue e+, Pfannenberg)
Arc-fault protection
To EN 61641 on request — internal separations Form 4b, arc-fault detection (ABB TVOC-2, Siemens SIQuench) or pressure relief
Engineering output and documentation
Circuit diagrams
EPLAN Electric P8 + Pro Panel, multi-pole representation of all power and control circuits (IEC 60617, IEC 81346)
Selectivity calculation
Documented via Siemens SIMARIS, ABB Curve Direct or Schneider Ecodial — project-dependent
Smart MCC
Profinet and EtherNet/IP connection (Siemens SIRIUS Smart, ABB UMC, Schneider TeSys T) for central diagnostics
Corporate standards
Eaton xEnergy / xEffect on Eaton mandate; spec-compliant implementation of any corporate standard
Tech stack
Brand components and tech stack for industrial plants.
Complete, industry-proven component range with global availability, international approvals and long-term support guarantees. CTB is an official Schneider Electric partner.
PLC and control
Siemens SIMATIC S7-1500 / TIA Portal / WinCC / SIRIUS
Brand-neutral with long-standing manufacturer partnerships.
CTB is an official Schneider Electric partner and has worked with all relevant industrial manufacturers for decades. TUEV Austria certified to SCC*.
PLC and drive manufacturers
Siemens
B&R
Beckhoff
Schneider Electric
Rockwell Automation
KEBA
ABB
SEW-Eurodrive
Danfoss
KEB
Eaton
Switchgear, terminals, enclosures
Phoenix Contact
WAGO
Weidmueller
Wieland
Eaton
Rittal
STEGO
Pfannenberg
Safety and sensors
Pilz
Sick
Schmersal
Endress+Hauser
JUMO
WIKA
Pepperl+Fuchs
ifm electronic
Turck
Wiring and bus components
Helukabel
Lapp
Igus chainflex
Belden
HUBER+SUHNER
Harting
Standards
Standards for industrial switchgear.
Our industrial plants are consistently planned, manufactured, tested and documented to the relevant international standards.
Switchgear, machinery and PLC
EN 61439-1/-2
Low-voltage switchgear and controlgear assemblies, energy distribution switchboards
EN 60204-1
Safety of machinery — electrical equipment (Machinery Directive 2006/42/EC)
EN 61131-3
Standardisation of PLC programming
IEC 60617 DB
Graphical symbols for diagrams
IEC 81346
Reference designation for installations and wiring
Functional safety and EX protection
EN ISO 13849-1
Safety-related parts of control systems (performance level)
EN 62061 / IEC 61508 / IEC 61511
Functional safety for safety-related E/E/PE systems (SIL assessment)
EN 61641
Arc-fault protection for low-voltage switchgear assemblies
ATEX 2014/34/EU + EN 60079
Explosion protection for chemistry, petrochemistry, pharma — Zone 1/2/21/22
EMC, export and quality
EMC Directive 2014/30/EU + EN 61000
Electromagnetic compatibility
UL 508A & UL/ULc
Industrial Control Panels for North American export incl. SCCR calculation
SCC* (TUEV Austria)
Safety, health and environmental management for contractors
Why CTB
Industrial engineering from Lebring — workshop mentality, deployable worldwide.
For plant operators, machine and plant builders with high requirements on standards, documentation and delivery reliability. We have been serving the majority of our industrial customers successfully for many years worldwide — from the Netherlands, France, Switzerland and Scandinavia to the USA, Canada, China, South Korea, Australia and Egypt.
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30+ years of industrial experience
1,500+ plants in over 25 countries since 1992 — not a pure drawing office, but engineering, manufacturing and commissioning from a single house.
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Brand-neutral
Vendor-independent for PLCs and components. Corporate, sector or end-customer mandates are implemented 1:1 — Siemens, B&R, Beckhoff, Schneider, Rockwell, KEBA and more.
DE/EN documentation as standard, further languages on request. UL 508A / UL/ULc for North American export, ATEX for EX zones, worldwide shipment packed sea-worthy.
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Standards-compliant and audit-proof
EN 61439, EN 60204-1, IEC 61131-3, EN ISO 13849-1, ATEX, UL — documented standards verification per project. Versioned final documentation, audit-proof, the basis for later extensions.
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TUEV certified (SCC*)
With the TUEV Austria SCC* certificate we demonstrate that we meet the high international standards for safety, health and environmental management in the contractor business.
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Engineering + manufacturing + service
In-house switchgear production in Lebring (Styria) incl. FAT prior to shipment. Practical knowledge from commissioning and after-sales flows back into planning.
Use cases
When industrial customers commission CTB.
Typical industrial project situations from 30 years of plant engineering — from greenfield projects to retrofits of legacy control systems.
New production plant (greenfield)
Complete electrical engineering, switchgear manufacturing, PLC programming, FAT in Lebring and SAT on site — single-source responsibility from phase 01 to commissioning.
MCC and VFD cabinet extension
Extension of existing Motor Control Centres with Smart MCC modules (Profinet, EtherNet/IP), additional VFD compartments with dedicated cooling and arc-fault protection to EN 61641.
Retrofit to current PLC platform
Migration of legacy controls (Siemens S5/S7-300, B&R 2003/2005) to TIA Portal or Automation Studio X20/X90 while retaining existing wiring and sensors.
Export to North America
Industrial Control Panels to UL 508A with UL/ULc listing, SCCR calculation, NFPA-79-compliant wire marking and English documentation — ready for the US and Canadian markets.
ATEX plants in chemistry / petrochemistry
Switchgear for EX zones 1/2/21/22 to ATEX 2014/34/EU and EN 60079 — including isolating barriers (Pepperl+Fuchs, R. STAHL, MTL) and SIL assessment of safety-related functions.
Plant modernisation under new standards
Adaptation of existing installations to current standards (e.g. EN 61439-1/-2 instead of former EN 60439) including re-engineering of documentation in EPLAN Electric P8 and recommissioning.
Remote maintenance and SLA service
VPN connectivity, defined SLA response times, spare-parts pool, regular inspections and software-update service — see after-sales service.
FAQ
Frequently asked questions about industrial plant automation.
Platforms and engineering
Which PLC platforms do you support for industrial plants?expand_more
Which CAE systems does CTB use in industrial engineering?expand_more
Standards and export
Can you also deliver switchgear for North American export?expand_more
What is the arc-fault protection concept for large MCC assemblies?expand_more
Sectors and wiring
Which sector experience do you bring to industrial plant automation?expand_more
How does EMC-clean wiring work in industrial plants?expand_more
Contact
Industrial plant in planning, extension or modernisation?
We review your requirements and clarify together which engineering steps, components and standards make sense for your project — without obligation, in a short technical first conversation.
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Electrical engineering for industrial plantsCircuit and terminal diagrams, cable lists, EN 60204-1 and EN 61439 for manufacturing, process and plant engineering — incl. EX areas and ATEX zones.
Switchgear for industrial plantsLow-voltage switchgear up to 4,000 A per EN 61439, Rittal enclosures, in-house production in Lebring incl. FAT/SAT.
PLC and control for industrial plantsSiemens TIA, B&R, Beckhoff TwinCAT, Profinet, OPC UA — control of process cells, pumps, conveyors and I&C nodes.
Commissioning for industrial plantsFAT in Lebring, SAT on site, loop checks, hydraulic balancing and SCC*-compliant safety commissioning.
After-sales for industrial plantsRemote maintenance via VPN, SLA response times, spare-parts pool, retrofit to current control platforms.
Concept phasePlanning & concept optimisationIn the Lebring engineering office, a CTB colleague discusses optimisation opportunities at the flow scheme together with the customer — before the first component is ordered.
FAT prior to shipmentFactory Acceptance Test in LebringPrior to shipment, the customer performs a factory acceptance on the switchgear — function, labelling and test protocols against the specification.
