XCMG XDA45U Articulated Dump Truck Parts – 803696190 5a Fuse
5a Fuse
Предохранитель на 5А
Fusible 5A
The genuine XCMG 5a Fuse with OEM part number 803696190 is a precision low‑current blade fuse specifically engineered for the sensitive electronic circuits of XCMG articulated dump trucks, including the XDA30, XDA40, XDA45, XDA45U, XDA60, and TA30 series. The 803696190 5A fuse is an OEM-grade replacement for the original equipment installed in the main fuse panel, auxiliary fuse boxes, and control modules of these heavy‑duty vehicles. This standard automotive blade fuse (ATC/ATO type) provides reliable circuit protection for low‑power electronic loads such as sensors, control modules, instrument clusters, warning lamps, and communication networks, where excessive current could cause immediate semiconductor failure.
The OEM fuse 803696190 is manufactured from high‑purity zinc alloy with an integrated silver‑plated fuse element that melts precisely at a predetermined current level, opening the circuit before damage occurs to downstream electronics. The transparent polycarbonate housing allows visual inspection of the fuse element, and the tan (beige) color coding (industry standard for 5A) ensures quick identification in crowded fuse boxes. The blade terminals are tin‑plated brass for corrosion resistance and low contact resistance, ensuring reliable connection in the fuse block even in high‑vibration mining environments.
The 803696190 5A fuse is designed to carry 100% of its rated current continuously without opening. It will open within 0.5–120 seconds when subjected to a 135% overload (6.75A) and within 0.1–10 seconds at 200% overload (10A), protecting sensitive electronic circuits from short circuits and excessive current draw. The fuse meets ISO 8820 and SAE J1284 standards for automotive blade fuses, ensuring full interchangeability with standard ATC/ATO fuse blocks used in XCMG equipment. In the XCMG XDA45U articulated dump truck, this fuse is used in critical positions such as the engine control module (ECM) main power, transmission control unit (TCU) power, sensor supply circuits (5V reference), CAN bus communication module, dashboard cluster, and telematics unit.
Using genuine XCMG fuses like 803696190 guarantees correct current‑time tripping characteristics, consistent terminal dimensions, and reliable performance under vibration and temperature extremes. Counterfeit fuses often use imprecise element cross‑sections, leading to nuisance blowing or failure to open under fault conditions. Some generic fuses have poor terminal retention that loosens over time, causing intermittent electrical issues that are difficult to diagnose. Trust genuine XCMG for the highest standard of circuit protection in your articulated dump truck fleet.
Technical Data Sheet – 5a Fuse (OEM 803696190)
| Parameter | Specification |
|---|
| OEM Part Number | 803696190 |
| Product Name | 5a Fuse / 5A Blade Fuse / Mini Fuse (ATC/ATO) / Automotive Fuse |
| Brand | XCMG (Genuine OEM) |
| Fuse Type | ATC / ATO blade fuse, 5A rated |
| Rated Current | 5 Amperes (continuous) |
| Voltage Rating | 32 V DC (compatible with 12V / 24V systems) |
| Fuse Element Material | Silver-plated zinc alloy (precision calibrated) |
| Terminal Material | Tin-plated brass (corrosion resistant) |
| Housing Material | Transparent polycarbonate (UL94 V-0 flame rating) |
| Color Code | Tan / Beige (industry standard for 5A) |
| Opening Time @ 135% (6.75A) | 0.5 – 120 seconds |
| Opening Time @ 200% (10A) | 0.1 – 10 seconds |
| Maximum Interrupting Capacity | 1,000 Amperes at 32V DC |
| Cold Resistance (max) | ≤ 22 mΩ (at 23°C, new fuse) |
| Voltage Drop @ Rated Current | ≤ 0.1 V (5A, 23°C) |
| Operating Temperature Range | -40°C to +125°C |
| Standards | ISO 8820-3, SAE J1284, UL 248-1, CSA C22.2 |
| Compatible XCMG Models | XDA30, XDA40, XDA45, XDA45U, XDA60, TA30, plus AD45, AD60, AD80, AD100 |
| Common Applications | ECM power, TCU power, sensor supply, CAN bus, instrument cluster, telematics, warning lamps, HVAC control panel, radio memory, DEF controller |
| Certifications | ISO 9001:2015, IATF 16949, RoHS, REACH, CE |
| Warranty | 24 months / 5,000 operating hours |
Critical Role of 5A Fuse 803696190 in Protecting Sensitive Electronics
Modern articulated dump trucks such as the XCMG XDA45U rely on dozens of electronic control modules, sensors, and communication networks to manage engine performance, transmission shifting, emission control, braking, and vehicle diagnostics. These electronic components operate at low currents (typically well below 5A) and are extremely sensitive to overcurrent events. A short circuit in a sensor wiring harness could draw 10–20A from the battery, instantly destroying the sensor and potentially damaging the ECU’s driver circuit. The 803696190 5A fuse is the first line of defense, opening within milliseconds to limit the current and protect downstream electronics.
In the XCMG XDA45U, which is powered by the Mercedes‑Benz OM471 (or OM460LA) diesel engine producing 390 kW (523 hp) and 2,600 N·m of torque, the 803696190 5A fuse is used in the following critical circuits: ECM main power input (keeps the ECU alive when ignition off), transmission control unit (TCU) power, sensor supply voltage (5V reference for throttle position, boost pressure, EGR position, etc.), CAN bus communication power, instrument cluster power, telematics/GPS module, and DEF quality sensor. A blown 5A fuse in any of these circuits will disable the corresponding function and often illuminate a check engine light or trigger a diagnostic trouble code.
The XCMG XDA45U articulated dump truck features a 6×6 drive with inter‑wheel differential locks, an advanced load‑sensitive hydraulic system, and a centralised lubrication system. The electronic controllers for these systems also rely on 5A fuses for protection. For example, the differential lock controller draws less than 2A during activation; a short in the solenoid wiring would be limited by the 803696190 5A fuse, preventing controller damage. In mining operations where dust, moisture, and vibration are extreme, maintaining the integrity of these low‑current fuses is essential for maximizing fleet uptime.
Precision Calibration and Performance Characteristics of 803696190
The 803696190 5A fuse is engineered with a silver‑plated zinc fuse element that is laser‑calibrated to achieve the precise melting characteristics defined by the ATC/ATO blade fuse standard. The cross‑section of the element is controlled to within ±2% of the design value, ensuring that the time‑current curve falls within a narrow window. This is critical for coordination with the ECU’s built‑in protection — some ECUs include self‑resetting thermal protection; a fuse that opens too slowly may allow the ECU to be damaged before the fuse reacts, while a fuse that opens too quickly may cause nuisance trips under normal inrush current.
The time‑current characteristic of the 803696190 5A fuse is as follows: at 135% of rated current (6.75A), the fuse will open between 0.5 seconds and 120 seconds (depending on ambient temperature and initial temperature). At 200% of rated current (10A), the fuse will open between 0.1 seconds and 10 seconds. At a direct short circuit of several hundred amperes, the fuse will open in less than 0.1 seconds, limiting the peak let‑through current (I²t) to safe levels for wiring harnesses and circuit board traces. The fuse also has a high interrupting capacity (1,000A at 32V DC), meaning it can safely clear even severe short circuits without shattering.
XCMG performs 100% quality testing on each batch of 803696190 fuses, including: voltage drop measurement (≤0.1V at 5A), cold resistance verification (≤22 mΩ), and sample destructive testing to confirm opening time at 135% and 200% of rated current. The transparent polycarbonate housing is tested for impact resistance and flame retardance (UL94 V‑0). The tan color coding (industry standard for 5A) ensures quick identification in the fuse box, reducing the risk of inserting an incorrectly rated fuse during roadside repairs.
Installation and Troubleshooting Guide for Fuse 803696190
To replace a blown fuse with a new genuine XCMG 803696190 5A fuse, first locate the fuse box (junction box) that contains the affected circuit. Consult the fuse map printed on the fuse box cover or the XCMG workshop manual to identify the correct position. Use a fuse puller or fine pliers to remove the old fuse. Examine the fuse element through the transparent housing: a melted or broken element indicates an overcurrent event. Do not simply replace the fuse; investigate the root cause of the overload before installing a new fuse.
Insert the new genuine XCMG 803696190 fuse into the socket, ensuring it is fully seated and the blades are straight. If the new fuse blows immediately, there is a direct short circuit to ground in that circuit. Disconnect the suspected load and measure resistance to ground; if resistance is near 0 ohms, trace the wiring for chafing or pinched wires. Do not increase the fuse rating to prevent repeated blowing; this will create a fire hazard. Instead, repair the underlying fault.
If a fuse blows intermittently, it may be due to a loose connection or an intermittent short. Perform a wiggle test on the wiring harness while monitoring continuity. Use a thermal camera or infrared thermometer to identify hot spots on the fuse box; a hot fuse may indicate overload or high resistance. Replace the fuse with a new genuine 803696190 and monitor the current draw with a DC clamp meter; the circuit should draw less than 4A continuously (80% of rating).
Inspect all fuses in the vehicle every 500 operating hours as part of the routine electrical system check. Look for signs of corrosion on the fuse blades (white or green deposits). If corrosion is present, clean the socket contacts with electrical contact cleaner and a small brush. Replace any fuse that shows discoloration or pitting on the element, even if it has not blown. Keep a small stock of genuine XCMG 803696190 fuses in the truck’s glove box for emergency replacement.
Quality Assurance and Authenticity of 803696190
Every XCMG 803696190 5A fuse is manufactured in an IATF 16949 certified facility under strict quality control. The zinc alloy composition is spectrographically verified to ensure consistent melting characteristics. Each production batch is sampled for destructive testing: verification of opening times at 135% and 200% of rated current, voltage drop measurement, and terminal insertion/withdrawal force testing. The housings are tested for flammability (UL94 V‑0) and impact resistance.
Authentic XCMG fuses have the XCMG logo and the rating “5A” embossed on the top surface of the housing. The terminals have a bright, uniform tin plating with no burrs. The plastic housing is crystal clear, allowing full visibility of the fuse element. Counterfeit fuses may have a cloudy or tinted housing, missing or poorly defined markings, and terminals with rough edges or discoloration. The packaging includes a barcode label, a certificate of conformance, and a holographic security sticker.
Always purchase the 803696190 5A fuse from authorized XCMG dealers or the official parts portal. Register the part online to activate the 24‑month / 5,000‑hour warranty. Using counterfeit fuses risks electronic module damage, intermittent electrical faults, fire, and voiding of the vehicle warranty. Trust genuine XCMG for the highest level of circuit protection and safety for your articulated dump truck fleet.
Genuine XCMG OEM 803696190 5a Fuse — Precision blade fuse with silver‑plated element, transparent polycarbonate housing, tan color coding. Designed for 24V electrical systems on XCMG articulated dump trucks (XDA30, XDA40, XDA45, XDA45U, XDA60, TA30). Trust genuine XCMG for reliable overcurrent protection of sensitive electronics, ECUs, sensors, and CAN bus networks.
