Original Bosch 0332019456 4 Pin Normally Open Orange Mini Relay 12V DC 30A Single Circuit ISO Automotive Relay

• Brand: Genuine Bosch Original
• Part No.: 0332019456
• Cross BMW OE: 1351317
• Cross Audi/VW OE: 141951253
• Cross Opel OE: 01238621
• Cross Mercedes OE: A0005420919
• Coil Voltage: 12V DC
• Coil Resistance: 16Ω standard range
• Contact Type: Single Pole Single Throw Normally Open (4 Pin ISO Mini)
• Rated Current: 30A Normally Open Medium Resistive Load
• Built-in Component: No freewheeling diode / surge resistor
• Extra Feature: Without fixed mounting tab
• Protection Grade: IP34 sealed anti-oil, dust & splash water
• Working Temperature: -40℃ ~ +100℃
• Housing: Compact standard orange flame retardant mini plastic, no mounting ear
• Warranty: 6 Months Genuine Bosch Factory Warranty

Core Electrical & Mechanical Specifications

1. Nominal Coil Voltage: DC 12V
2. Continuous Contact Load: 30A @12V DC Normally Open resistive medium load
3. Coil DC Resistance: 16Ω
4. Mechanical Service Life: ≥10,000,000 operations
5. Electrical Service Life: ≥250,000 cycles under full 30A rated resistive load
6. Standard ISO 4-Pin Definition: 30 Common Input, 87 Normally Open Output, 85 Coil Negative, 86 Coil Positive
7. Housing Dimension: 28.5(L) × 28.5(W) × 26(H) mm standard compact mini size, no mounting tab
8. Vibration Resistance: 10–500Hz passenger vehicle industrial standard
9. Terminal Pin Protection: IP20

Wide Application Range

1. OEM matching 4pin NO orange mini relay spare part for European passenger cars and small 12V diesel gensets, single medium-load control for fan, fuel pump, light and auxiliary heater circuits
2. Direct replacement for failed original 0332019456 OEM relay: auxiliary electrical equipment no start, intermittent power loss and overheat malfunction
3. Universal core stock for European car special repair shops and small generator rental companies for daily 12V light vehicle & small genset overhaul
4. Safety control system upgrade retrofit for 12V mini gensets and compact passenger vehicles, upgrade stable 30A single-path medium-load switching protection function for standard 4pin mini relay installation slots

Common Equipment Failures Solved

• Cheap generic 20A 4pin relays have thin contacts, severe melting ablation under 30A medium load, leading to fan stall, fuel pump shutdown and vehicle overheat warning malfunction
• Inferior thin plastic mini housing cracks under long-term vehicle vibration, internal coil breakage causing total loss of control function
• Mismatched 24V relays burn coil instantly after installation, unable to operate normally
• Original Bosch 0332019456 orange 4pin mini relay damaged, direct plug-and-play replacement without harness modification
• Compact 12V car/small genset requires standard 4pin NO relay for single medium loads; 5pin changeover relays cannot match single-circuit wiring layout