Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 is a floor distribution board with a fixed cable input, where per-phase meters show the current and voltage of each of the three phases. The meters also double as indicator lights that show current is reaching the phases.

Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 – fixed input makes the board more reliable

A fixed input makes the board more reliable than a plug-connected board: the supply can’t be accidentally disconnected, stolen or moved. The board is versatile, since it can be fed with a fuse rated anywhere from 63–125A depending on what’s needed.

Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 – two separate chain outputs

125A can be chained onward through the bottom of the board with two separate fixed chain outputs: 1×32A AL/CU 16mm² and 1×63A AL/CU 35mm². Thanks to the two separate chain outputs, you can continue to the next floor with exactly the power it needs, without oversizing. The chain outputs sit behind a fuse but have no separate RCD — which suits, for example, a site hoist or other equipment designed to run fixed-connected without an RCD.

Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 – plenty of outputs from one point

Outputs include 1×63A, 2×32A, 1×16A and 6×16A/230V, so the board is enough to feed both a larger machine and several power tools at the same time.

Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 – phase meters reveal unbalanced load instantly

Per-phase measurement helps you spot unbalanced load before it trips a fuse or causes a break in the site’s power distribution. On this model, the phase meters measure both the socket outputs and the fixed chain outputs. Read here why and how phase measurement makes site operations more efficient.

A light aluminium body that travels well

the product is made of aluminium, so it’s light in construction. It’s easy to carry by its handle and hang on a wall or board stand from the hanging loops, or it can be set on the floor on its own feet.

Serviceable and customizable

The board is manufactured in Finland using only high-quality European components, such as PCE and Schneider. All parts are available as spare parts, and the board can be modified according to customer wishes — for example, the number and size of the boxes can be changed.

How version 4 differs from the other floor distribution boards

If a single combined chain output is enough, see Subcabinet with fixed input and phase load measurement TSR 63/125A. If you don’t need the 63A output, see version 3.

Who this floor distribution board suits

the product suits large projects and sites in particular, where many boards are needed, the chain continues at more than one power level, and you want to ensure sufficient power with 125A cabling along the whole route. The “floor” in this board’s category name doesn’t mean it has to be used per building floor — a “floor” can just as well be any area or point that power is chained onward to. The model also suits multi-storey construction sites where you want to track load per phase along the whole route, including the chain outputs.

Technical information

Rated current	125 A
Rated voltage	400 V
RCD	1 x 40A/30mA, 2 x 63/300mA
Outputs	1x63A, 2 x 32A, 1 x 16A, 6 x 16A 230V
Fixed chain output	1 x 32A AL/CU 16mm², 1 x 63A AL/CU 35mm²
Fixed input	AL/CU 6-95mm²
Main switch	125A
Enclosure rating	IP44
Dimensions (W×D×H)	22×46×82 cm
Weight	17.8 kg

Add the product to the quote cart and request an offer – we’ll also confirm availability and delivery time.

Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 on the worksite

A floor distribution board brings power to where the work is done. Placed on the working floor, it removes the need to run extension cords through stairwells.

Short cords are both a safety and a quality matter: a long cord causes voltage drop and is a permanent trip hazard.

This model is rated 125 A. Size the equipment by the actual simultaneous load – the sum of the nameplate ratings almost always leads to oversizing.

Outputs: 1x63A, 2 x 32A, 1 x 16A, 6 x 16A 230V. Count the work points before choosing – the number of outputs decides how many machines one board can feed.

Where Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 is used

Typical sites are construction projects, renovations, industrial maintenance and event power. What they share is that the electrical supply is temporary and the conditions are demanding.

Temporary does not mean lighter requirements. Site equipment is exposed to dust, moisture, moving and mechanical stress in a way that fixed installations never are.

Check the load distribution between phases during use. Uneven distribution overloads one phase while the others run half empty, and the usual symptom is a fuse that keeps tripping.

Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 – how to choose the right model

The equipment is chosen by rated current and outputs. Start by calculating the simultaneous load and the output types needed, and choose the model on that basis.

Other models of the same type are Subcabinet for floorlevels TAK 63/100A, Subcabinet for floorlevels TAK 63/100A PRO KS, Fixed input floor distribution board 63A/125A/VM chaining 125A, Fixed input floor distribution board 63A/125A/VM fixed 32A outputs, Fixed input floor distribution board 63A/125A/VM terminating.

Other details that affect the choice: protection class IP44, RCD 1 x 40A/30mA, 2 x 63/300mA, weight 17,8 kg, dimensions 22×46×82 cm. These are worth checking already at the quotation stage.

You can see the full range in the product group, and read about real-time monitoring on the Spine page.

Practical notes for use

Winter brings requirements of its own. Condensation forms when cold equipment is brought into the warm, and moisture inside the enclosure is a common reason for an RCD tripping with no visible cause.

Mark the equipment with the site details and keep a record of what is fed from where. On a site with several contractors that saves time at every fault-finding.

RCD protection is mandatory for socket outputs on a site. Its operation is tested with the test button at commissioning and at regular intervals afterwards.

Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 – installation and maintenance

Installation and connection work is carried out by a qualified electrician. The equipment must be made dead before connection work, and the absence of voltage verified by measurement.

Place the equipment on level ground and so that it can be reached freely even when the site fills up with material. Material stacked in front blocks both use and emergency isolation.

Test the RCD with its test button at commissioning and at regular intervals afterwards. The test takes a second and is still almost always forgotten.

The unit weighs 17,8 kg. Take the weight into account when moving and lifting – damage is most often caused during transport, not in use.

Check the joints and fixings regularly during use. A joint that heats up is a sign of a fault and should be corrected before the fault spreads.

Safety and inspections

Site electrical installations are subject to the same requirements as fixed installations, and some of them are stricter. The equipment has to withstand moving, dust, moisture and mechanical stress for the whole project.

The installation is inspected at commissioning and regularly during use: enclosure, joints, the operation of the protective devices and the fact that live parts cannot be reached.

Damaged equipment is not repaired improvised on site. A cracked enclosure, a burnt terminal or a damaged socket is replaced – on a site a temporary repair almost always becomes permanent.

Document the configuration and any changes made. Up-to-date information on outputs and protection speeds up fault-finding and the next inspection.

Delivery and sizing help

We deliver the equipment together with the cables and the rest of the site power supply in one delivery, so the set is complete when it arrives on site.

Describe the whole site in your request for quotation: supply power, the outputs needed and the estimated length of the project. We size the set on that basis.

Use the product number 5000334/4 when ordering and when asking about spare parts. It identifies this exact model, which matters when the same series comes in several sizes.

We also help with the sizing. If you are unsure about the size or the number of outputs, ask us – equipment sized wrong costs more than equipment chosen right the first time.

Frequently asked questions

Why does the board have two chain outputs?

Two differently-sized chain outputs let you continue to the next floor with exactly the power level it needs, without oversizing.

Do the phase meters also measure the chain outputs?

Yes, on this model the phase meters measure both the socket outputs and the fixed chain outputs.

Can I connect equipment without an RCD to the chain outputs?

The chain outputs sit behind a fuse but have no separate RCD. This suits, for example, a site hoist or other equipment designed to run without a dedicated RCD.

Can the board be customized to fit my needs?

Yes, the number and size of the boxes can be customized to the customer’s needs at our Finnish factory.

How is the board installed?

The board can be hung on a wall or board stand from the hanging loops, or placed on the floor on its own feet.

What is the rated current of Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4?

The rated current is 125 A.

What is the protection class?

Protection class: IP44.

What are the dimensions?

Dimensions: 22×46×82 cm.

How much does the product weigh?

Weight: 17,8 kg.

What is the product number?

The product number is 5000334/4. Use it in requests for quotation and spare part enquiries.

See also the full Subcenter with fixed connection range, or add Subcabinet with fixed input and phase load measurement TSR 63/125A ver 4 to your quote cart now.

The requirements for electrical installations on worksites are explained in more detail on the Tukes website.

Request a quotation

Add to the quotation basket and send us your request – we will confirm availability and delivery time. You can see the full range in the product group.