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Victron SolidSwitch 104
Victron SolidSwitch 104
Controls up to 70V/4A DC loads via a low-power digital signal
Highlights:QR Code: Scan for product documentation and technical support,Status LED: Indicator light showing device 'ON' status,Screw Terminal Block: Four-pin green connector for battery, load, and remote switch wiring,Upper Mounting Slot: Secure mounting hole for surface installation,Lower Mounting Slot: Secondary mounting point for stable horizontal or vertical attachment.
Detailed view of the green pluggable screw terminal block providing secure connections for battery positive, load, remote H, and battery negative.
Key features: Total width of 58mm including terminal block, Main body height of 56.4mm, Slim profile depth of 22.8mm, Mounting hole diameter of 3.5mm, Centre-to-centre mounting distance of 66.4mm. 
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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.
SPECIFICATIONS
Specifications
| Operating Input Voltage Range (Vbat) | 8 – 70 V DC |
|---|---|
| Maximum Load Current | 4 A |
| Maximum Capacitive Load | Vbat up to 15 V: 1000 µF; 15 V < Vbat < 30 V: 400 µF; 30 V < Vbat < 70 V: 50 µF |
| Maximum Inductive Load | Up 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 On | 30 µA |
| Compatible Load Types | Resistive, Capacitive or Inductive (Such as the Coil of a High-Power Contactor) |
| Operating Temperature | -20 to +50 °C; 0 - 120 °F |
| Humidity | Max. 95% (Non-Condensing) |
| Protection Grade | IP20 |
| Material and Colour | ABS, Matt Black |
| Dimensions (H x W x D) | 58 x 66 x 23 mm |
| Reverse Polarity Protection | Not Reverse Polarity Protected |
| Short Circuit Protection | Not Short Circuit Proof |
| SKU: | VIC-BMS800200104 |
| Barcode: | 8719076055556 |
| Model #: | BMS800200104 |
| MPN: | BMS800200104 |
WARRANTY
Victron Energy Limited Warranty Policy
Direct Customers
Victron Energy provides the following warranty to any direct customer (OEM, distributor or dealer) in relation to any products that Victron Energy has directly sold to the direct customer. This warranty is not an end-user warranty between Victron Energy and an end-user, and end-users shall not have any rights or remedies under this limited warranty towards Victron Energy directly. The direct customer shall, in turn, ensure that the end-user is provided with a warranty identical to this warranty, subject to applicable local mandatory law.
End-Users
Victron Energy may also provide a warranty directly to end-users, in which case the below warranty conditions equally apply to such warranty. In that case, end-users shall claim their warranty at their place of purchase or through the original direct customer of Victron, which can be found through the support section on Victron’s website https://www.victronenergy.com/support. Hence, the direct customer shall on behalf of Victron Energy deal with any warranty claims made under any warranty that Victron Energy may provide directly to end-users. This support section on Victron’s website https://www.victronenergy.com/support will provide further guidance on the procedure for end-users to make a claim under this limited warranty.
If the end-user is a consumer – a natural person who is acting for purposes which are outside that person's trade, business, craft or profession – the following applies. The rights and remedies granted to the consumer under this limited warranty are without prejudice to the consumer’s statutory rights. Furthermore, the consumer is entitled by law to remedies from the seller free of charge in the event of a lack of conformity of the goods (such as repair, replacement, price reduction or rescission), which remedies are not affected by this limited warranty.
Warranty
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 original 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 original end-user, with a maximum of 30 months from the Victron Energy invoice date, Lithium batteries: 3 years from date of purchase by the original end-user, with a maximum of 42 months from the Victron Energy invoice date. In addition to this, proof of correct battery usage is required when making a battery warranty claim.
For a 10% surcharge on the current net price for products that came with a 5-year warranty, an additional 5 years of warranty can be purchased by Victron’s direct customers, bringing the total warranty to 10 years. Warranty extensions need to be applied for ultimately one year before the expiration of the original term. Victron may ask proof that the product was still functional at the time of purchase of the extended warranty.
During the warranty period, Victron Energy will, at its discretion, repair, replace or (partly) credit 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:
- Reversed battery polarity.
- Inadequate connection.
- Mechanical shock or deformation.
- Contact with liquid or oxidation by condensation.
- Use in an inappropriate environment (dust, corrosive vapour, humidity, high temperature, biological infestation, etc.).
- Breakage or damage due to lightning.
- Connection terminals and screws destroyed or other damages, like overheating, due to insufficient tightening.
- For any electronic breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state of the internal control diode and/or the input/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 other than Victron Energy or one of its authorized Repair Centres. In order to qualify for the warranty, the product must not be disassembled or modified.
This warranty and our warranty obligations thereunder (repair, replacement or credit) are the direct customer’s and, if applicable, the end-user’s sole rights and remedies and our sole obligations with respect to any defective and/or non-conforming product or breach of warranty and is subject to and without prejudice to the limitations of liability in this warranty.
Victron Energy shall not be liable for damages, whether direct, incidental, special, or consequential, even caused by negligence or fault.
As a product requires service, it must be brought back to the place of purchase. In case no contact can be made with the merchant, or if he is either unable or not allowed to provide service, direct contact should be made with Victron Energy through the support section on Victron’s website.
In case Victron Energy replaces a product, it will own the replaced product. Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers when performing warranty repairs or building replacement products.
If Victron Energy repairs or replaces a part of a product, its warranty term is not extended: the warranty will apply for the remaining term of the original warranty term. For example, if Victron Energy replaces a product with a 5-year warranty after 3 years, the warranty of this product will apply for another 2 years, with a minimum of 6 months.
All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent or special damages, even if having been advised of the probability of such damages.
The foregoing limited warranty provided by Victron Energy is in lieu of any other warranties, express or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, of any kind whatsoever including, without limitation, warranties of merchantability or fitness for a particular purpose, with respect to any product. The above is without prejudice to the arrangement for consumers detailed above.
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 Victron Energy's product can be reasonably expected to cause the 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.
Warranty on repairs for products outside their warranty period
The warranty period on products that are outside their warranty period and have been repaired by Victron Energy or one of the Victron Energy Repair centres is six (6) months from delivery. The same applies to spare parts and circuit boards that have been supplied or repaired 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 of this warranty 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 of this warranty.
Applicable law
This warranty is exclusively governed by the laws of the Netherlands, to the exclusion of the UN Convention on Contracts for the International Sale of Goods.
Contact details
Victron Energy B.V. | De Paal 35, 1351 JG Almere, The Netherlands | https://www.victronenergy.com/support
