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3774-00090
Yutong Bus Parts
| Attribute | Description |
|---|---|
| Part Number | 3774-00090 |
| Product Name | Ignition Switch / Key Start Switch |
| Application Vehicle Type | Large Passenger Buses, Coaches, Electric & Diesel Models |
| Voltage Rating | 24V DC (Standard Commercial Bus System) |
| Housing Material | High-strength metal with anti-corrosion coating |
| Lock Cylinder Included | Yes – includes one lock core and two matching keys |
| Terminal Configuration | Multi-pin plug-in design (typically 4–6 terminals) |
| Switch Positions (Detents) | 4 Positions: LOCK (0), ACC (I), ON (II), START (III) |
| Mounting Style | Flange-mounted with threaded barrel |
| Protection Level | IP54 (Dust protected, splash resistant) |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Compliance Standards | GB/T 28046 (Automotive Electronics), CCC, ISO 9001 |
| Parameter | Specification |
|---|---|
| Rated Voltage | 24V DC |
| Maximum Current Ratings | - Battery (B): 30A continuous - Ignition (I): 20A - Starter (S): 15A (momentary, ≤5 sec) |
| Contact Resistance | ≤ 50 mΩ |
| Insulation Resistance | ≥ 100 MΩ at 500V DC |
| Dielectric Strength | 1500V AC for 1 minute (between isolated circuits) |
| Mechanical Life | ≥ 100,000 cycles (key insert/remove + rotation) |
| Electrical Life | ≥ 50,000 cycles (at rated load) |
| Spring Return Function | Automatic return from START → ON after release |
| Terminal Type | Blade terminals (e.g., 6.3mm Faston) or solder tags |
| Vibration Resistance | Complies with GB/T 28046.3 / ISO 16750-3 |
| Anti-Theft Design | Precision tumbler lock mechanism; non-duplicable without code |
| Attribute | Description |
|---|---|
| Part Number | 3774-00090 |
| Product Name | Ignition Switch / Key Start Switch |
| Application Vehicle Type | Large Passenger Buses, Coaches, Electric & Diesel Models |
| Voltage Rating | 24V DC (Standard Commercial Bus System) |
| Housing Material | High-strength metal with anti-corrosion coating |
| Lock Cylinder Included | Yes – includes one lock core and two matching keys |
| Terminal Configuration | Multi-pin plug-in design (typically 4–6 terminals) |
| Switch Positions (Detents) | 4 Positions: LOCK (0), ACC (I), ON (II), START (III) |
| Mounting Style | Flange-mounted with threaded barrel |
| Protection Level | IP54 (Dust protected, splash resistant) |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Compliance Standards | GB/T 28046 (Automotive Electronics), CCC, ISO 9001 |
| Parameter | Specification |
|---|---|
| Rated Voltage | 24V DC |
| Maximum Current Ratings | - Battery (B): 30A continuous - Ignition (I): 20A - Starter (S): 15A (momentary, ≤5 sec) |
| Contact Resistance | ≤ 50 mΩ |
| Insulation Resistance | ≥ 100 MΩ at 500V DC |
| Dielectric Strength | 1500V AC for 1 minute (between isolated circuits) |
| Mechanical Life | ≥ 100,000 cycles (key insert/remove + rotation) |
| Electrical Life | ≥ 50,000 cycles (at rated load) |
| Spring Return Function | Automatic return from START → ON after release |
| Terminal Type | Blade terminals (e.g., 6.3mm Faston) or solder tags |
| Vibration Resistance | Complies with GB/T 28046.3 / ISO 16750-3 |
| Anti-Theft Design | Precision tumbler lock mechanism; non-duplicable without code |