On-board Disconnectors and Inverters

Mersen offers a large product ranges for On-Board applications under 85VDC, 750VDC, 1,500VDC, 3,000VDC and 25kVAC.

Our standard On-Board disconnector range is rigorously engineered to meet your technical specifications in different configurations (Disconnector, Change-over, Grounding). Mersen has a switch solution that will meet your unique needs.

Benefits Uses of Current Collector Devices

Mersen off-load disconnectors and inverters are designed to be very compact with a modular and flexible design to meet your electrical circuit configuration.

They can be manually operated from outside the train with the use of a front panel or motorized inside a cubicle.

They are designed to withstand up to 25.000 cycles (open-close) To guarantee this efficiency, Mersen is testing them internally and with external partners.

Spare part kits

Mersen will supply you all Spare parts kits to guarantee the reliability and increase the life time of your product.

• Replacement Kit poles
• Replacement kit micro switch,
• all necessary components

Training and assistance

Mersen Design team is available to support your design and maintenance team’s especially for the smart and connected functions.

Mersen Service team can train your Maintenance team to make the setting and the maintenance of your installations all around the world.

The comprehensive range is divided in three main functions:

• Off-load disconnectors
• Off-load inverters
• Grounding

They can operate under 85VDC, 750VDC, 1,500VDC, 3,000VDC and 25kVAC.

They are build with a modular and flexible conception where you can choose:

• The Main Function
• The voltage
• The number of poles
• The current value for each pole
• The number of position (1 to 4 positions)
• Manual or motorised operation
• Operation from outside through a front panel or not
• Locking device for security (by key or padlocks)
• The quantity of micro switches per position
• Connection box for motor and micro switch

Then you get your customized devices adapted to your technical environments.

Voltage range

The range of Off-load disconnectors, Off-load inverters, Grounding is covering the voltage range of 85VDC, 750VDC, 1,500VDC, 3,000VDC and 25kVAC.

Current range

The range of Off-load disconnectors, Off-load inverters, Grounding is covering the current range up to 2000 Amp, for higher rating please ask.

High short circuit withstand

The range of Off-load disconnectors, Off-load inverters, Grounding are studied to withstand 30kAmp short circuit, for higher rating please ask.

Number of poles and positions (modular conception)

This range can offer up to 4 positions (Main Power , Isolate, Work shop, Earth,) and up to 6 poles which can offer different current ratings (for example 1 pole 1250A, 1 poles 800 Amp and 2 poles 250 Amp).

Modular design

You can customized your device by choosing the following characteristics and functions:

• The Main Function
• The voltage
• The number of poles
• The current value for each pole
• The number of position (1 to 4 positions)
• Manual or motorised operation
• Operation from outside through a front panel or not
• Locking device for security (by key or padlocks)
• The quantity of micro switches per position
• Connection box for motor and micro switch
• Work shop plug

Tumbler

Some disconnectors can be equipped with a spring system named tumbler which have two functions. First function is the speed-up the operation of position change to avoid possible arcing and second is to finish the movement if the motor would miss infeed.

Life time and number of cycles 

These devices are very low maintenance and last the life time of the train. The first maintenance operation is given for 25.000 operations.

Work shop plug

These devices can be equipped with a work shop plug to infeed the auxiliaries circuits when the train is in the depot

Tooling

Beside the spare parts, Mersen can supply the necessary tooling to set perfectly your equipment to the technical requirements of your network and optimize their use.

LCC ; RAMS; Type tests

Mersen team provide type test and different studies (Life Cycle Cost, RAMS, FMEA, Eco Design and recyclability, etc…) to secure the reliability of your equipment and its conformity to standards and legislations.