Original Bosch 0332209204 Mini Changeover Automotive Relay V23234-A0004-X051 24V DC 5 Pin 20A NO 10A NC

Product Description

Bosch has been producing relays for vehicles and other applications for more than 40 years - this vast development experience ensures continuous advancement in design features to deliver optimum performance. Bosch Mini Relays feature a compact design and are used in a wide range of vehicles to perform switching operations. Bosch relays incorporate only the highest quality materials for reliable, long-term performance and a 250,000 switching cycle capability. Engineered with high corrosion resistance to ensure long term reliability in harsh environments and conditions. 5 pins, 24V, 20/10A. Black.

Full Model Marking

• Brand: Genuine Bosch Original
• Part No.: 0332209204
• Cross TE Siemens Part: V23234-A0004-X051
• Factory Code: MR204
• Coil Voltage: 24V DC
• Coil Resistance: 32Ω (30–34Ω tolerance)
• Contact Type: SPDT Single Pole Double Throw 5 Pin ISO Mini
• Rated Current: 20A Normally Open / 10A Normally Closed
• Built-in Component: Reverse polarity protection freewheeling diode
• Protection Grade: IP5K4 fully sealed anti-oil, dust & splash water
• Working Temperature: -40℃ ~ +85℃
• Housing: Compact mini black flame retardant plastic, without mounting bracket

Core Electrical & Mechanical Specifications

1. Nominal Coil Voltage: DC 24V
2. Continuous Contact Load: 20A @24V DC NO, 10A @24V DC NC resistive load
3. Coil DC Resistance: 32Ω standard range
4. Mechanical Service Life: ≥10,000,000 operations
5. Electrical Service Life: ≥250,000 cycles under rated resistive load
6. Standard ISO 5-Pin Definition: 30 Common, 87 NO, 87a NC, 85 Coil Negative, 86 Coil Positive
7. Housing Dimension: 28.5(L) × 28.5(W) × 26(H) mm compact mini size
8. Vibration Resistance: 10–500Hz commercial vehicle industrial standard
9. Connection Protection: IP20 terminal pin protection

Wide Application Range

1. OEM matching compact mini relay spare part for 24V commercial vehicles and small diesel gensets, dual-circuit switching control for fan, preheating, fuel cut-off and alarm circuits
2. Direct replacement for failed original 0332209204 / V23234-A0004-X051 mini relay: auxiliary electrical equipment no start, intermittent operation, disordered control circuit, protection function invalid
3. Universal stock for auto repair shops, Volvo truck service centers and small generator rental companies for daily 24V light/medium power equipment overhaul
4. Retrofit safety control system for 24V mini gensets and compact construction vehicles, upgrade stable dual-path SPDT switching protection function with built-in anti-surge diode

Common Equipment Failures Solved

• Cheap generic relays have unstable coil resistance, weak suction, thin contacts easily burnt, leading to fan stall, preheating failure and generator overheat protection malfunction
• Inferior thin plastic mini housing cracks under long-term vehicle vibration, internal coil breakage causing complete loss of control function
• Mismatched 12V relays burn coil instantly after installation, unable to operate normally
• Original Bosch 0332209204 mini relay damaged, direct plug-and-play replacement without harness modification
• Compact 24V truck/mini genset requires space-saving mini SPDT relay; large standard relays cannot fit limited installation space