Dual Battery Isolation Controller Relay Solenoid Switch KH-180 12V 200A KH180
A 12V 200A dual battery isolation controller relay solenoid switch that cross references KH-180, fitted to special purpose vehicles, trucks, excavators, engineering vehicles and buses. It automatically isolates the starter battery from the auxiliary battery when the engine is running, preventing the starter battery from discharging into the auxiliary system. Supplied in neutral, customised or CHINO branded packaging with a 12 month warranty from B/L date.
MOQ 10 pcs · Free samples, freight at your cost · Neutral or own brand packing · 12 month warranty from B/L date
Key Benefits
- Cross references KH-180 to ensure direct fitment without modification to the vehicle's electrical system
- 200A current rating supports high-load auxiliary systems such as winches, air compressors and lighting rigs
- Automatic isolation prevents starter battery drain during extended auxiliary use
- Relay-controlled solenoid switch operates reliably in high-vibration environments typical of engineering vehicles
- Ships in 7 to 10 working days as a stocked fast-moving item
- Twelve month warranty from B/L date protects against early failure in demanding applications
Application Scenarios
Where It Is Used
- Fleet workshops replacing failed battery isolation switches on excavators after prolonged use in construction zones
- Aftermarket distributors stocking dual battery controllers for mixed fleets of trucks and special purpose vehicles
- Body builders integrating auxiliary power systems into new bus chassis with dual battery setups
- Repair chains diagnosing starter battery drain issues caused by a failed isolation switch
Who It Is For
- Truck parts importers who buy against KH-180 OEM numbers
- Aftermarket distributors serving construction and engineering vehicle fleets
- Fleet maintenance managers running special purpose vehicles with dual battery systems
- Auto electrical repair shops that stock solenoid switches by current rating and voltage
Problems It Solves
Symptoms on the Vehicle
- Starter battery discharge into auxiliary systems when the isolation switch fails
- Engine cranking issues caused by a weak starter battery due to continuous parasitic drain
- Original KH-180 switches that are slow to source and expensive through the dealer network
- Mixed vehicle fleets that would otherwise need multiple part numbers for different isolation controllers
Technical Features
- 12V DC system voltage for use in standard commercial vehicle electrical systems
- 200A continuous current rating with 180A peak capacity for high-load auxiliary circuits
- Relay-controlled solenoid switch with automatic isolation on engine start
- Dual battery configuration support for starter and auxiliary battery separation
- Robust construction suitable for high-vibration environments in trucks and engineering vehicles
- Direct plug-in replacement for the original KH-180 unit with no rewiring required
Specifications
Only values printed on the original product page are listed. Anything not shown here we confirm in writing before you order.
| OEM No | KH-180 |
|---|---|
| Reference No | KH180 |
| Type | Dual battery isolation controller relay solenoid switch |
| Voltage | 12V |
| Current Rating | 200A |
| Peak Current | 180A |
| Application | Special purpose vehicle, truck, excavator, engineering vehicle, bus |
| Place of Origin | Ruian, China |
| MOQ | 10 pcs |
| Delivery Time | 7-10 working days |
| Packing | Neutral, customised or CHINO box |
| Warranty | 12 months since B/L date |
| Certification | ISO 9001:2015 |
Materials and Manufacturing
Materials
- Moulded thermoplastic housing
- Copper alloy contact terminals
- Solenoid coil with insulated wire
- Steel core and armature assembly
Quality Control
- 100 percent function test before delivery
- Performance parameters checked in the in-house laboratory
- Component materials sourced from named suppliers under the IATF 16949:2016 documented process
- Production and test steps recorded on video
Manufacturing Process
Terminal stamping and plating
Solenoid coil winding and insulation
Housing moulding
Final assembly and potting
Electrical function test
Customization Options
- Neutral packing with no brand marking
- Customer branded box and barcode label
- CHINO branded retail box
- OEM and ODM builds against a sample or drawing
Compared With the Alternatives
| Original KH-180 relay solenoid switch | Same fitment and electrical parameters at aftermarket pricing, but without the OEM part number on the box unless branded packaging is ordered |
|---|---|
| Used or reclaimed solenoid switch | New units carry a 12 month warranty from B/L date; reclaimed stock carries no warranty and may have degraded contacts |
Use Guide
- Confirm the vehicle is a 12V system before fitting
- Match the physical housing and terminal layout against the original KH-180 before ordering
- Isolate the battery, disconnect the old solenoid from the dual battery harness, and install the replacement in the same orientation
- Test battery isolation function by starting the engine and verifying the auxiliary battery is no longer charging from the starter battery
- If isolation fails, check the control relay, wiring harness and ignition switch signal before condemning the solenoid
Questions About This Part
Which vehicles use the KH-180 solenoid switch?
It is listed for special purpose vehicles, trucks, excavators, engineering vehicles and buses. Send us your chassis number and we will confirm fitment before you order.
What is the minimum order quantity?
10 pcs on catalogue items. We also accept small trial orders so you can test the part in your own market first.
How long is delivery?
7 to 10 working days for fast moving items held in stock. Production orders take longer and we confirm the date in writing when the order is placed.
Can I get the parts in my own packaging?
Yes. We supply neutral packing, your own branded box with barcode label, or the CHINO box. Artwork is confirmed before printing.
What warranty do you give?
12 months from the B/L date. If a unit fails within that period we take responsibility when the fault is caused by the part, and we reply to any complaint within 24 hours with a solution within 3 days.
Are samples free?
The sample itself is free of charge. We discuss the freight cost with you before shipping.
How do you control quality?
Every part is function tested before delivery and performance parameters are checked in our own laboratory. Components come from named suppliers and production follows the IATF 16949:2016 documented process.
Related Products
Ask for a Quote on Dual Battery Isolation Controller Relay Solenoid Switch KH-1
Send the number printed on your original unit and a photograph of the connector. We confirm the match before you order and send a free sample first.