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  • 161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C
  • 161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C
  • 161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C
  • 161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C
  • 161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C
  • 161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C
161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C

161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C

  • 5 - 19 Pieces
    $10
  • 20 - 49 Pieces
    $9
  • >= 50 Pieces
    $8

Customization:

Customized logo（Min.Order: 50 pieces）
Customized packaging（Min.Order: 50 pieces）
Graphic customization（Min.Order: 50 pieces）
View product details

161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Safety Control Management: Ensures reliable electrical system operation and fault detection in heavy construction machinery, specifically designed for Caterpillar 312C and 318C models.
  • Starter Relay Functionality: Facilitates safe startup and shutdown processes, enhancing equipment durability and operational efficiency.

Key features

  • 1. Rugged Material Construction for Harsh Environments

    • With a corrosion-resistant and durable metal body, you can ensure long-lasting performance in dusty, wet, or extreme outdoor conditions common in heavy construction sites.

  • 2. CE Certified Safety Compliance

    • With CE certification, you can meet EU safety and quality standards, ensuring reliable operation and compliance for professional machinery use.

  • 3. Brand-Specific Precision Compatibility

    • With Caterpillar-specific design and compatibility, you can achieve seamless integration with 312C/318C models, reducing installation errors compared to generic aftermarket parts.*

  • 4. Optimized for Heavy Machinery Demands

    • Designed for continuous operation in high-stress construction scenarios, you can maintain stable power distribution and reduce downtime during critical tasks.

  • 5. Guaranteed Freshness and Reliability

    • With a 1-year shelf life, you can ensure the unit retains optimal functionality upon installation, outlasting products with shorter storage warranties.*

Product details

161-3128 Relay Safety Control Unit Starter Relay 1613128 Heavy Construction Machinery Equipment Parts for Caterpillar 312C 318C

The 161-3128 Relay Safety Control Unit is a high-performance starter relay designed for heavy construction machinery, specifically compatible with Caterpillar 312C and 318C models. Engineered to meet rigorous safety standards, this unit ensures reliable electrical control in demanding environments.

Technical specifications

FeatureSpecificationApplication Scenario
CertificationCE CertifiedCompliance with EU safety and performance standards for industrial machinery.
CompatibilityCaterpillar 312C/318CDirect replacement for original equipment in Caterpillar excavators and loaders.
Shelf Life1 YearGuaranteed functionality when stored under standard conditions.

Customization guide

Adjustable parameters such as voltage tolerance and contact rating can be tailored to meet specific OEM requirements or extended operational scenarios (e.g., high-temperature environments).

Get inspired

Enhance the reliability of your Caterpillar machinery with a relay designed to withstand extreme vibrations, dust, and moisture. Ideal for construction sites where uptime is critical.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Voltage Rating12V DC24V DC24V DC (with surge protection)
Current Capacity10A20A30A
Durability5,000 cycles10,000 cycles20,000 cycles*

Supplier's note

  1. Technical Breakthroughs:

    • CE Certification: Ensures compliance with EU safety standards, enabling seamless integration into Caterpillar’s global supply chain.
    • Extended Shelf Life: 1-year storage stability reduces inventory obsolescence risks for equipment manufacturers.
    • Customizable Voltage Tolerance: The Pro Model’s surge protection allows safe operation in fluctuating power environments.

  2. Version Selection Guide:

    • Base Model: Suitable for standard Caterpillar 312C/318C maintenance, where legacy system compatibility is prioritized.
    • Advanced Model: Ideal for contractors operating in harsh climates, offering double the current capacity of base models.
    • Pro Model: Engineers requiring ultra-reliability (e.g., continuous heavy-duty cycles) benefit from its 20,000-cycle lifespan—4x longer than industry benchmarks.

With CE certification, you can ensure regulatory compliance. The Pro Model’s surge protection enables safe handling of voltage spikes in mining or demolition sites. Pair its high-cycle durability with Caterpillar’s heavy-duty engines to minimize downtime.

Frequently asked questions

  • Which Caterpillar models is the 161-3128 Relay Safety Control Unit compatible with?

  • How should I store the 1613128 Relay to maintain its 1-year shelf life?

  • Is the Relay Safety Control Unit CE certified, and why is this important?

  • Can the 161-3128 Relay be used with Caterpillar models outside the listed ones?

  • What safety features does the Relay Safety Control Unit offer?

  • Does the Relay require professional installation?

  • How does the 1613128 Relay compare to non-certified alternatives?

  • What factors affect the 1-year shelf life of this Relay?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Safety ComplianceEU machinery certification requirementsIndustry: IEC 60947 (base: CE ▲ meets standard), Advanced: CE + ISO 13849-1 ▲▲ (exceeds with advanced safety protocols)Base ensures compliance; Advanced adds redundancy for critical systemsAdvanced may require specialized installation training
Brand CompatibilityCaterpillar machinery maintenanceIndustry: Universal fitment, Base: Caterpillar-specific ▲, Advanced: Caterpillar + Komatsu ▲▲ (broader compatibility)Base ensures seamless fit; Advanced reduces inventory for multi-brand fleetsBase limited to Caterpillar; Advanced may cost more upfront
Shelf LifeLong-term parts storageIndustry: 6 months (ASTM D395), Base: 12 months ▲, Advanced: 18 months ▲▲ (verified via ISO 3801)Extended storage reduces restocking frequency for distributorsAdvanced may require controlled storage conditions for full shelf life
Relay Response TimeHigh-speed machinery controlIndustry: 10ms (IEC 60947-5), Base: 5ms ▲, Advanced: 3ms ▲▲ (meets IEC 61131-3 PLC standards)Faster response improves operational safety and precisionAdvanced requires precise wiring to avoid signal interference
Operating Temp RangeHarsh environmental conditionsIndustry: -20°C to 70°C (ISO 16750), Base: -30°C to 80°C ▲, Advanced: -40°C to 90°C ▲▲ (tested per MIL-STD-810)Wider range suits Arctic/Desert climates for Caterpillar 312C/318CAdvanced may require thermal shielding for extreme temps
Durability (MTBF)Heavy-duty machinery operationIndustry: 10,000 hours (IEC 61373), Base: 20,000 hours ▲, Advanced: 30,000 hours ▲▲ (verified via ASTM D395)Reduces downtime and replacement costs for continuous-use equipmentAdvanced uses premium materials, increasing upfront cost

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