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Victron SolidSwitch 104

Controls up to 70V/4A DC loads via a low-power digital signal


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DESCRIPTION

Victron SolidSwitch 104: Reliable Solid-State DC Load Control

The Victron SolidSwitch 104 is a highly efficient solid-state relay engineered to switch DC loads of up to 70V and 4A. Designed for precision and reliability, it allows you to control higher-power circuits using a low-power digital signal. Whether you are integrating it into a comprehensive battery management system or upgrading an off-grid solar setup, this compact unit offers dependable performance for a wide range of complex DC applications.

Seamless Control for Diverse DC Loads

One of the primary advantages of a solid-state design over a traditional mechanical relay is the absence of moving parts, which eliminates contact wear and arcing. The Victron Solid Switch 104 excels at managing various electrical demands and is fully compatible with resistive, capacitive, and inductive loads. This makes it an ideal solution for driving the coil of a high-power contactor, functioning as a starter relay kill switch, or integrating with a voltage sensing switch to automate load disconnects in sophisticated power systems.

By utilising a low-power control signal, the SolidSwitch significantly reduces the electrical strain on your primary control circuits, such as a BMS (Battery Management System) or a central programmable logic controller. This is especially useful in 12V, 24V, or 48V battery architectures where precise load management is critical for system longevity.

Compact Design and Straightforward Installation

Space is often at a premium in marine, automotive, and off-grid electrical enclosures. The Victron SolidSwitch 104 features a highly compact form factor, measuring just 58mm in total width, 56.4mm in height, and an ultra-slim 22.8mm depth.

Wiring is simplified through a robust four-pin green pluggable screw terminal block, which provides secure connections for the battery positive, load, remote high signal, and battery negative. Furthermore, the unit includes dual mounting slots for stable horizontal or vertical surface installation. A built-in status LED indicator provides immediate visual feedback on the device's operational state, streamlining troubleshooting and system monitoring.

Key Features and Specifications

  • Reliably switches DC loads up to 70V and 4A
  • Triggered by a low-power digital control signal
  • Suitable for resistive, capacitive, and inductive loads (including high-power contactor coils)
  • Compact footprint with a pluggable 4-pin screw terminal block for secure wiring
  • Clear status LED indicator for quick operational diagnostics
  • Functions effectively alongside a Victron battery switch or existing system relays

Important Technical Considerations

When integrating the Victron SolidSwitch 104 into your electrical network, professional wiring practices are essential. Please note that this specific Victron relay is not reverse polarity protected and is not short circuit proof. Installers must ensure correct wiring polarity and implement appropriate inline fusing to protect both the SolidSwitch and the connected load from accidental short circuits or power surges. Proper circuit protection will ensure the long-term reliability of your load management system.

Elevate Your Power Management System

Achieve precise and reliable automated load control in your power network. Equip your solar, marine, or automotive setup with the Victron SolidSwitch 104 today and experience seamless, solid-state load switching.


SKU: VIC-BMS800200104

SPECIFICATIONS

Specifications

Operating Input Voltage Range (Vbat)8 – 70 V DC
Maximum Load Current4 A
Maximum Capacitive LoadVbat up to 15 V: 1000 µF; 15 V < Vbat < 30 V: 400 µF; 30 V < Vbat < 70 V: 50 µF
Maximum Inductive LoadUp to 1 A: 1000 mH; 1 A < I < 2 A: 100 mH; More than 2 A: 10 mH
Remote Input (Vin)Free Floating or Vin < 3 V: Load Off; 3.3 V < Vin < 70 V: Load On
Min. Input Current to Switch On30 µA
Compatible Load TypesResistive, Capacitive or Inductive (Such as the Coil of a High-Power Contactor)
Operating Temperature-20 to +50 °C; 0 - 120 °F
HumidityMax. 95% (Non-Condensing)
Protection GradeIP20
Material and ColourABS, Matt Black
Dimensions (H x W x D)58 x 66 x 23 mm
Reverse Polarity ProtectionNot Reverse Polarity Protected
Short Circuit ProtectionNot Short Circuit Proof

SKU: VIC-BMS800200104
Barcode: 8719076055556
Model #: BMS800200104
MPN: BMS800200104

WARRANTY

Victron Energy Limited Warranty Policy

Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the end user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead acid batteries; 2 years from date of purchase by the end user, with a maximum of 30 months from the Victron Energy invoice date, Lithium-ion batteries; 3 years from date of purchase by the end user. In addition to this proof of correct battery usage is required when making a battery warranty claim.

During this period, Victron Energy will, at its option, repair or replace the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation and re‐installation. This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like: • Reverse of battery polarity. • Inadequate connection. • Mechanical shock or deformation. • Contact with liquid or oxidation by condensation. • Use in inappropriate environment (dust, corrosive vapor, humidity, high temperature, biological infestation...). • Breakage or damage due to lightning. • Connection terminals and screws destroyed or other damages, like overheat, due to insufficient tightening. • For any electronical breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state ofthe internal control diode and of the inputs/output X and Y capacitors determine the warranty.

This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone else than Victron Energy or one of its authorized Qualified Service Partners. In order to qualify for the warranty, the product must not be disassembled or modified.

Repair or replacement are our sole remedies and Victron Energy shall not be liable for damages, whether direct, incidental,special, or consequential, even caused by negligence or fault.

Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers in performing warranty repairs and building replacement products. If Victron Energy repairs or replaces a part of a product, its warranty term is not extended. In case of replacement the new component has a warranty of 6 months, without effect on the initial warranty period. All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent orspecial damages, even if having been advised of the probability of such damages. Any and all other warranties expressed or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited in duration to a period of two (2) years from the date of purchase.

Life Support Policy As a general policy, Victron Energy, does not recommend the use of any of its products in life support applications where failure or malfunction of the Victron Energy's product can be reasonably expected to cause failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the Liability of Victron Energy is adequately protected under the circumstances.

As a product requires service, it must be brought back to the place of purchase. In case no contact can be taken with the merchant, or if he is either unable or not allowed to provide service, direct contact should be taken with Victron Energy.

Warranty on Repairs The warranty period on products or on printed circuits boards repaired by Victron Energy as well as on printed circuit boards for replacement is 6 months from delivery by Victron Energy.

Transport It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.

Severability If a part of the terms and conditions set out above is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions remaining.

For Australia only Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Exotronic provides high-quality products and solutions tailored for B2B and commercial customers, including commercial businesses, caravan manufacturers, marine electricians, OEMs, as well as emergency services, and more.

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