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3736010-TL770
Dongfeng
| Attribute | Specification |
|---|---|
| Product Name | Manual Battery Master Switch / Power Isolation Switch |
| Manufacturer | Dongfeng Commercial Vehicles Co., Ltd. (OEM) |
| Primary Part Number | 3736010-TL770 |
| Alternative Names | Battery Disconnect Switch, Manual Power Cut-Off, Red Knob Switch |
| Voltage Rating | 24V DC (compatible with 12–32V systems) |
| Control Type | Manual rotary handle (mechanical contact separation) |
| Mounting Style | Bolt-on chassis or battery box bracket |
| Switch Location | Typically installed on negative or positive battery terminal |
| Housing Material | Flame-retardant engineering plastic (UL94-V0 rated) |
| Conductive Components | High-conductivity tinned copper posts with anti-loosening nuts |
| Sealing Level | IP54-rated (dust protected and splash-water resistant) |
| Application Class | Heavy-Duty Trucks, Construction Equipment, Special Purpose Vehicles |
| Parameter | Value / Detail |
|---|---|
| Rated Continuous Current | 150A – 250A |
| Peak Surge Current | Up to 1,000A – 2,000A (for 5–10 seconds during engine cranking) |
| Operating Voltage | 24V DC nominal (suitable for all 24V truck systems) |
| Switch Mechanism | Rotary cam-type manual actuator |
| Contact Resistance | < 0.5 mΩ (ensures minimal voltage drop and heat generation) |
| Dielectric Strength | Withstands > 1,500V AC between housing and terminals |
| Operating Temperature Range | -40°C to +85°C (-40°F to +185°F) |
| Vibration Resistance | Complies with QC/T 413 and GB/T 28046 standards |
| Weight | Approx. 0.8 – 1.1 kg |
| Installation Hole Pattern | Standardized mounting holes (M6/M8) for universal fitment |