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3RV2021-4BA10

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Regular price $67.81
Sale price $67.81 Regular price


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Overview of Siemens 3RV2021-4BA10

Buy genuine Siemens 3RV2021-4BA10 directly from LeadTime.ca for your automation system. The Siemens 3RV2021-4BA10 is a robust, DIN rail–mounted motor starter protector engineered for reliable motor protection in demanding industrial environments. With an adjustable current range of 14 to 20A and class 10 overload trip characteristics, it delivers fast, precise motor protection—tripping within 10 seconds in overload conditions. This device combines overload and short-circuit protection, motor disconnect, and control in a single compact unit, making it a cost-effective solution for critical operations. Featuring magnetic short-circuit trip elements, phase loss sensitivity, and standard screw terminals, the 3RV2021-4BA10 supports easy installation and maintenance while complying with international standards for electrical safety.

Key Features of Siemens 3RV2021-4BA10

  • Adjustable motor protection range: 14–20A for precise application matching
  • Thermal-magnetic trip (class 10) and magnetic short-circuit release (260A) for comprehensive protection
  • Rotary ON/OFF handle for safe manual operation
  • Phase loss sensitivity for enhanced motor and system safety
  • Compact S0 frame size with screw terminals for secure, vibration-resistant connections
  • Mounts on standard 35mm DIN rail for flexible, space-saving installation
  • Operates across a wide voltage range (220–690V AC) and powers motors up to 7.5kW at 400V
  • Minimized energy loss and reduced control cabinet heat output thanks to optimized bimetal trip units
  • Supports optional auxiliary contacts (e.g., 3RV2901) for signalling and remote monitoring
  • UL-approved for use as a self-protected combination motor controller (Type E protection)

Technical Specs of Siemens 3RV2021-4BA10

Review Siemens 3RV2021-4BA10 specifications covering voltage, I/O, and communication for detailed parameters before installation.

Parameter Specification
Adjustable Trip Range 14–20A (A-release), 260A (N-release)
Trip Class Class 10 (10 seconds or less)
Rated Voltage 220–690V AC
Max Motor Power (400V AC) 7.5kW
Frame Size S0
Mounting 35mm DIN rail
Dimensions 97 x 45 x 96 mm
Protection Class IP20
Connection Screw terminals
Operating Temp -20°C to +60°C

Applications / Use Case

This Siemens 3RV2021-4BA10 is commonly used in industrial automation, process control, and machine automation worldwide. It is an ideal solution for protecting motors in production lines, packaging machinery, conveyors, and factory control panels. The integrated features—overload, short-circuit, and phase loss protection—ensure reliable operation and reduced downtime in critical applications. When paired with a Siemens 3RT2 contactor, it forms a complete, compact motor starter solution for systems requiring coordinated protection and control.

Price & Availability

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Why Order from LeadTime.ca

All products on LeadTime.ca are authentic OEM, supplied by trusted distributors, and ready for international delivery. Buy online with fast global shipping and enjoy personalized support for all your industrial automation needs.

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3RV2021-4BA10

$67.81

  • ACHIEVING

    4.0

    average rating

  • With

    95%

    positive reviews

  • LESS THAN

    1%

    return rate

Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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