Holtab
Sales engineer Eric: Full focus on data centres
Eric Risemark Mønnich is a new sales engineer at Holtab. He is responsible for our solutions for data centres and critical infrastructure.
Low-voltage switchboards
The demand for low-voltage switchboard is high, and every customer has their unique requirements. We offer main and distribution switchboards as well as solutions suitable for everything from heavy industries to commercial operations, service switchgear, and distribution centers.
Wide Range
The need for low-voltage switchboards can be highly customer-specific, which is why we have developed a wide variety of alternative setups. What characterizes all of them is modern technology and high flexibility.
Operational and Personal Safety
The low-voltage switchboards is of exceptionally high quality. They are tested according to IEC/EN 61439 standards. Upon request, we also perform additional personal and operational safety tests.
Flexible Modular Design
We work with a modular design, allowing for great freedom in the selection of electrical components. Additionally, there is significant flexibility in terms of width, height, and depth, meaning the switchboard can be fully customized to fit the installation site.
Our Low-voltage switchboards
Our low-voltage switchboards comes in a variety of proven designs, offering solutions for all types of installations.
Modular Switchboard
Our modular and well-documented low voltage switchboard CMS is based on Cubic's switchboard system and is offered in various solutions to meet all conceivable needs. Here are some examples:
- Main and distribution switchboard
- MCC switchboard (Motor Control Centers)
Depending on the requirements, we can offer several different solutions based on the modular system, such as:
- Fixed units
- Removable units (plug-in)
- Withdrawable units (multi-drawer)
Flexible Modular System
Full freedom in the selection of electrical components and size adjustments to fit the installation site.
Safety
Designed and tested with a focus on personal and operational safety.
According to standard
The system is tested and well documented according to standard IEC 61439.
Product data
Rail system
System 225, 800, 2 000 and 7 000
System grounding
TN, TT and IT
Internal division
Form 1, 2a, 2b, 3a, 3b, 4a, 4b and form type 1–7
Design
According to IEC/EN 61439-2
Protection class
< IP54
Rated current
< 6 300 A
Rated short-time current
< 120 kA
Rated surge current
< 264 kA
Rated insulation voltage
1 000 V AC
Rated operating voltage
< 1 000 V, 50 Hz
Multi Drawer
< 630 A
Icc < 120 kARated impulse withstand voltage
< 3,5 kV
Electromagnetic compatibility
EMC environment A and B
Vibrationstest
2 G in the frequency range 2.5–500 Hz in a three-way rock test
Shock test
30 G for 12.5 ms in six directions
Seismic test
Earthquake test performed with biaxial horizontal and vertical multi-frequency motions.
Arc test
IEC/TR 61641 and AS/NZS 3439.1
Surface treatment
Class C2 high, according to ISO 12944
The system consists of Cubic's standard components tested as standard to a short-circuit level corresponding to a rated time current of up to 120 kA 1s and a rated impulse current of max. 264 kA.
The system is available in any division from form 1 to 4, and thus optimal personal and operational safety fully in accordance with IEC/EN 61439-1 and the customer's wishes. After installation and commissioning of the switchgear, it is possible to carry out a visual inspection and thermography of the rail connections.
A simpler version of removable groups. A complete group can extended or replaced with the LV switchboard in operation, without power/voltage interruption. The group is connected to the touch-protected rail system. The outgoing cable is connected directly to the switch.
The group is replaced simply, with some disassembly. The entire insert can then be pulled out.
The system's pull-out groups, also called draw-outs, are a system where electrical components are mounted in exchangeable cassettes that can be changed without disconnection from the switchboard. Retractable groups are used when electrical energy is to be distributed with the highest possible personal and operational safety.
Control, auxiliary and measuring circuits are transmitted via a multi-pole connector on the back of the cassette. The cassette can be moved to operating, test and disconnected mode. Regardless of the position on the cassette, the outgoing wires of the group are maintained connected in the switchgear, do not need to be disconnected.
Fixed groups are the simplest variant of outgoing groups. Reconstruction or replacement of a group takes place with the low-voltage switchboard in a de-energized state.
The groups can be equipped with fuse load switches or MCCB circuit breakers in a fixed version or in a plug-in socket. Plug-in breakers are used if you want a visible breaking point or if you want to change the breaker or supplement at a later stage without de-energizing the switchboard.
With Holtab-CMS, any division from FORM 1 to 4 is obtained, and thus optimal personal and operational safety completely in accordance with IEC/EN 61439 and the customer's wishes. After installation and commissioning of the low-voltage switchboard, it is possible to carry out a visual inspection and thermography of the rail connections.
CUBIC places importance on both operational and personal safety and therefore continuously performs additional tests that the market demands, such as earthquake, shock and arc tests. CUBIC's products are tested and/or type-approved by the world's most recognized certification institute.
Many customers today demand refined solutions in addition to pure power distribution. We therefore offer functions such as energy measurement of outgoing groups, network analysis, earth fault monitoring, alarm management, arc monitors and remote control via a control system node or Bus solution. With today's modern circuit breakers, multi-instruments and relay protection, the opportunity to easily and cheaply get a complete overview of your electrical installation wherever you are via web-based functions is also expanded.
Knowledge and inspiration
Business newsScalable power solutions are key for data centres
Data centres are being built at a rapid pace and require large amounts of power. At the same time, solutions need to be safe and able to scale over time. Holtab Sales Engineer Eric Risemark Mønnich explains how prefabricated and scalable technical buildings can meet these needs.
IndustryThe more unique requirements – the better the delivery of Holtab
With over 50 years of experience in delivering power solutions, Holtab has gained a prominent role in the industry. Not least when it comes to tailor-made products and solutions. “Working customer-specifically requires a high level of commitment and knowledge,” says Ola Hedqvist, Sales Engineer.
