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EKF PROXIMA VA 47-125 Technical Manual

Miniature circuit breakers
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TECHNICAL MANUAL
Miniature
circuit breakers
VA 47-125
EKF PROXIMA

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Summary of Contents for EKF PROXIMA VA 47-125

  • Page 1 TECHNICAL MANUAL Miniature circuit breakers VA 47-125 EKF PROXIMA...

  • Page 2: Technical Data

    1 DESCRIPTION Miniature circuit breakers VA 47-125 EKF PROXIMA are electromechan- ical switching devices used for close/open operations in AC electrical circuits and for protection against overload and short-circuit currents in residential and commercial buildings. Miniature circuit breakers (MCB) comply with IEC 60898-1.

  • Page 3: Tripping Characteristics

    Table 1 continued Characteristics Value Minimum cross-section of connected wires, mm Maximum cross-section of connected wires, mm Tightening torque, N·m 3 TRIPPING CHARACTERISTICS At the ambient temperature of +30°C Figure 1. Tripping curves...

  • Page 4: Overall And Installation Dimensions

    Figure 2. MCB temperature derating chart 4 OVERALL AND INSTALLATION DIMENSIONS Figure 3...

  • Page 5: Installation And Connection

    5 INSTALLATION AND CONNECTION Miniature circuit breakers shall be installed and connected by qualified electrical personnel. Copper and aluminum wire connection options are supported. Do not connect copper and aluminum wires to one terminal concurrently. MCB power supply can be connected both from terminals 1, 3, 5, 7 and from terminals 2, 4, 6, 8 (Figure 4).

  • Page 6: Delivery Scope

    7 DELIVERY SCOPE Miniature circuit breakers VA-125 are supplied in a group package. For all available documentation, scan the QR-code on the insert or on the inside of the package. 8 SAFETY REQUIREMENTS Do not operate MCBs with visual mechanical damage. MCBs conform to IEC 61140 Class 0 for protection against electrical shock and shall be installed in distribution enclosures with Class 1 pro- tection or higher.
  • Page 7 Republic of Kazakhstan: TOO «Energoresheniya Kazakhstan», Kazakhstan, Almaty, Bostandyk district, Turgut Ozal st., 247, apt 4. 11 CERTIFICATE OF ACCEPTANCE The miniature circuit breakers VA 47-125 EKF PROXIMA have been approved for operation. Date of manufacture: for information, refer to the product package.

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