IMPORTANT — PLEASE READ CAREFULLY BEFORE INSTALLING OR USING THIS PRODUCT

This document contains important safety information regarding the installation and use of this electrical wiring kit. Electrical system installation in vehicles carries inherent risks including fire, electrical shock, property damage, serious injury, or death if performed improperly.

This wiring kit is manufactured and sold by Serg Supply, a trade name (DBA) of Placer Innovation, Inc. By purchasing, installing, modifying, or using this product, the purchaser and installer acknowledge that they have read, understood, and agreed to the terms contained in this document and assume full responsibility for the installation and operation of the electrical system.

1. Intended Application

This prewired electrical kit is designed to assist with the installation of electrical systems in camper vans, recreational vehicles, and similar mobile applications. The included wiring sizes, connectors, and components are selected based on typical electrical loads commonly found in camper van conversions, including lighting circuits, refrigeration, ventilation, small appliances, electronics, and battery charging equipment.

If a user installs appliances, chargers, heaters, inverters, battery systems, or other electrical equipment with operating currents that exceed normal or anticipated loads, it is the sole responsibility of the installer to verify that the wiring used is properly sized and protected. Under no circumstances should any wire supplied by Serg Supply be used in an application where the conductor size is undersized for the intended current load, voltage drop requirement, or installation conditions. Improper conductor sizing may result in overheating, insulation failure, electrical fire, equipment damage, or personal injury.

2. Load Calculations and Wire Sizing Responsibility

The installer is solely responsible for verifying the electrical requirements of all connected appliances and devices prior to installation. Customers are strongly advised to verify conductor sizing using a recognized mobile electrical wiring calculator, such as an ABYC-style voltage drop calculator, before energizing any circuit. Important factors that must be considered include:

• Continuous current draw
• Peak current draw
• Wire length
• Allowable voltage drop
• Ambient temperature
• Bundling of conductors
• Installation environment

If there is uncertainty regarding proper wire sizing, the installer should contact Serg Supply or consult a qualified electrician before proceeding.

3. Compliance With Electrical Standards

Installers are responsible for ensuring that their electrical installation complies with all applicable electrical codes, safety standards, and regulatory requirements. Installations should follow recognized safety practices including those referenced by the Recreational Vehicle Industry Association and NFPA 1192. Serg Supply does not certify that any specific installation using this kit will meet any regulatory requirement, inspection standard, or certification program.

4. Circuit Protection Requirements

All electrical circuits must be protected with properly sized overcurrent protection devices. Failure to properly protect electrical circuits may result in wire overheating, electrical fire, or equipment damage. Installers must ensure:

• All 12-volt DC circuits are protected by appropriately sized fuses or circuit breakers matched to the wire size and appliance load.
• All 120-volt AC circuits are protected by properly rated circuit breakers.
• Included AC receptacles are rated for a maximum of 20 amps and must not be connected to circuits exceeding this rating.
• Overcurrent protection must be installed as close as practical to the power source.

5. Alternator Charging and DC-DC Charger Installation

When installing a DC-DC charger or alternator charging system, additional safety requirements apply. Vehicle manufacturers use different electrical architectures and charging systems. Improper connections may result in vehicle damage, charging system malfunction, electrical fire, or voided vehicle warranties. Installers must reference the vehicle manufacturer's service or build manual, confirm approved connection points, verify proper wire sizing, and ensure the alternator and battery systems are not overloaded. Serg Supply strongly recommends grounding the auxiliary electrical system to the vehicle chassis when installing DC-DC charging equipment.

6. Grounding Requirements

Ground connections must be attached to approved vehicle chassis grounding locations on clean bare metal, using properly sized hardware and terminals, and be protected with corrosion-resistant coating after installation. Improper grounding may result in system malfunction, overheating, electrical faults, or fire hazards.

7. Safe Wire Routing and Mechanical Protection

The installer is solely responsible for ensuring wiring is routed to prevent abrasion, crushing, puncture, or exposure to sharp edges. Wiring must never contact bare metal edges; pass-through points must be protected using grommets, conduit, or trim-lock; and wiring must be secured to prevent vibration damage and routed away from heat sources and moving components.

8. Protection From Installation Damage

Extreme care must be taken to ensure wiring is not damaged during installation by mounting screws, rivets, cabinetry fasteners, flooring fasteners, or panel installation hardware. If wiring becomes punctured, crushed, torn, or otherwise compromised during installation, it must be repaired or replaced before energizing the circuit.

9. Connector Installation and Verification

All connectors must be fully seated and verified prior to final installation. Installers must perform a minimum 10-pound pull test on all crimped or inserted conductors to verify proper mechanical retention. Loose electrical connections can cause high-resistance joints that may result in overheating, arcing, and electrical failure.

10. Lever-Nut and Splice Connections

Where lever-nut or similar splice connectors are used, ensure conductors are fully inserted, verify the correct stripped conductor length, and confirm insulation is not inside the clamping area. Once final installation is complete, sealing these connections with heat-shrink tubing is recommended to improve vibration resistance and long-term reliability.

11. AC Electrical Safety and Outlet Testing

All 120-volt AC receptacles must be inspected before energizing the system. Installers must verify tight terminal connections, proper wire strip length, correct polarity, and secure grounding connections. After the system is energized, each outlet must be tested using a standard AC outlet tester to confirm no open ground, no open neutral, and no reversed polarity. Improper AC wiring may create a severe electric shock hazard.

12. Bench Testing Requirement

All electrical components and circuits should be bench tested prior to permanent installation, before installing interior walls, ceilings, or flooring panels. Permanent installation should not proceed until the electrical system has been verified to operate correctly.

13. Professional Installation Recommendation

Vehicle electrical systems present unique hazards due to vibration, confined spaces, and high-current battery systems. If the installer lacks sufficient electrical knowledge or experience, Serg Supply strongly recommends that installation be performed or inspected by a qualified electrician or professional RV technician.

14. Product Modification and Alteration

Modifications including cutting, extending, splicing, substituting connectors, combining circuits, or bypassing protective components may alter the electrical safety of the system. Any modifications are performed entirely at the installer's risk and may void any applicable product warranty, releasing Serg Supply from responsibility for resulting system safety or performance.

15. Fastener Tightening and Torque Requirements

All terminals, studs, and mechanical connectors must be tightened according to manufacturer recommendations. Improperly tightened connections may result in high-resistance connections, excessive heat generation, connector failure, or electrical fire. Periodic inspection of electrical connections is recommended as part of routine vehicle maintenance.

16. Not a Complete Electrical System

This product provided by Serg Supply is not a complete electrical system. It is a wiring kit intended to assist with electrical installation. Safe operation depends on additional components including batteries, inverters, chargers, circuit protection devices, appliances, and grounding systems. Serg Supply cannot control how these components are selected or installed, and therefore the installer is solely responsible for ensuring that the completed electrical system is designed and installed safely.

17. Lithium Battery and Energy Storage Hazards

Improper installation or operation of battery systems may result in thermal runaway, electrical fires, explosion hazards, or severe burns. The installer is responsible for ensuring battery systems are installed according to the battery manufacturer's specifications. Serg Supply assumes no responsibility for battery selection, installation, or operation.

18. Inspection Before Use

All components must be inspected prior to installation and before energizing the electrical system. Installers must verify no damaged insulation, no loose connectors, no crushed wires, and no damage from shipping or handling. Any damaged components must be replaced before installation or use.

19. No Warranty for Installation or System Performance

Because Serg Supply cannot control installation practices, appliance selection, vehicle modifications, or system configuration, Serg Supply makes no representation or warranty regarding the safety or suitability of any completed electrical installation using this kit.

20. Assumption of Risk

The purchaser and installer assume all risks associated with installation and operation of the electrical system, including risks of fire, electrical shock, equipment failure, property damage, personal injury, or death.

21. Limitation of Liability

To the maximum extent permitted by law, Serg Supply shall not be liable for any indirect, incidental, consequential, special, or punitive damages arising from the installation or use of this product, including vehicle damage, property damage, fire damage, personal injury, loss of use, or loss of income. The total liability of Serg Supply, if any, shall not exceed the original purchase price of the product.

22. California Legal Provisions

To the fullest extent permitted under the laws of the State of California, the purchaser and installer agree that Serg Supply shall not be liable for damages arising from installation or use of this product except as required by applicable law. If any provision of this document is determined to be invalid or unenforceable, the remaining provisions shall remain in full force and effect. Any disputes arising from the purchase or use of this product shall be governed by the laws of the State of California.

23. Installer Acknowledgment

By installing, modifying, or using this product, the installer acknowledges that they have read and understood this entire document, accept full responsibility for the installation, have verified proper wire sizing and circuit protection, and understand the risks associated with electrical system installation. If the installer does not fully understand any portion of this document, installation should not proceed until guidance is obtained from a qualified professional.

Failure to follow safe electrical installation practices may result in fire, serious injury, or death.