ABB SPAJ140C_Xiamen XingRuiJia Import and Export CO,LTD

Model：ABB SPAJ140C

Brand: ABB
Price range (USD): 100-20000
Country: Switzerland
Parameter: Ratings:
Rated current (In): 5A
Rated frequency (fn): 50Hz or 60Hz
Auxiliary voltage (Uaux): 110V DC
Power Consumption:
Static power consumption: Approximately 4W; Operating power consumption: Approximately 6W
Dimensions and Installation:
External dimensions: 132mm × 105mm × 52mm
Installation method: 35mm DIN rail mounting
Net weight: Approximately 800g

ABB SPAJ140C

I. Overview

The ABB SPAJ140C is a combination overcurrent and earth fault relay designed for radial feeders in directly earthed, resistance-earthed, or impedance-earthed power systems. It provides selective short-circuit and earth fault protection. Its core function is to ensure the safe and stable operation of power systems through high-precision detection and rapid response.

II. Parameters

Ratings:

Rated current (In): 5A
Rated frequency (fn): 50Hz or 60Hz
Auxiliary voltage (Uaux): 110V DC

Power Consumption:

Static power consumption: Approximately 4W; Operating power consumption: Approximately 6W

Dimensions and Installation:

External dimensions: 132mm × 105mm × 52mm
Installation method: 35mm DIN rail mounting
Net weight: Approximately 800g

III. Product Features

Multifunctional Protection:

Provides three-phase low/high set overcurrent units (with definite time/inverse definite minimum time (IDMT) characteristics) and earth fault units (instantaneous/definite time operation)
Built-in circuit breaker failure protection and self-check system to continuously monitor hardware and software status

Flexible Configuration:

Supports two sets of setting value configurations, with programmable adjustment of protection parameters
Enables parameter reading and writing through local display or remote communication interfaces (such as Modbus RTU, IEC 60870-5-103)

High Reliability and Stability:

Adopts microprocessor technology with strong anti-interference capability (compliant with IEC 61000-4 series standards)
Mean Time Between Failures (MTBF) exceeds 20 years

Economy and Ease of Use:

Integrates overcurrent and earth fault functions, reducing the number of devices and floor space
Provides 2 heavy-duty relays and 4 signal output relays, supporting flexible signal routing

IV. Structure and Composition

Hardware Components:

Measurement module: Integrates phase current and neutral line current detection, supporting three-phase overcurrent and earth fault protection
Control unit: Contains timers, comparators, and logic circuits to realize fault judgment and action
Output interface: Provides trip contacts (terminals 65, 66, 74, 75) and signal contacts (terminals 70, 71, 72, 68, 69, 77, 78, 80, 81)
Protection rating: IP30 (corrugated aluminum reinforced housing)

V. Application Fields

Power Industry:

Suitable for user terminal substations and distribution networks with voltage levels of 10kV and below
Supports protection of overhead lines, cable lines, and incoming/outgoing line cabinets

Industrial Automation:

Widely used in scenarios such as motor control, lighting control, and heating control
Used for protection of key equipment in industries such as water treatment, mining, petrochemicals, metallurgy, and papermaking

Construction and Energy:

Power management in smart buildings and new energy fields (such as wind power generation, solar power generation)

VI. Installation and Maintenance

Installation Steps:

Disconnect the power supply to ensure safety
Install on the control cabinet according to DIN rail
Connect the power line, control line, and motor line
Turn on the power and perform system testing and parameter configuration

Maintenance Recommendations:

Regularly check the equipment operation status, communication connections, and parameter settings
Clean the dust on the equipment surface to maintain good heat dissipation
Back up parameter settings to prevent data loss
Immediately stop using the equipment in case of abnormalities and contact professional technicians for maintenance

VII. Certifications and Standards

Complies with the EU EMC Directive (CE certification)
Passed IEC 61000-4 series tests (ESD, RS, EFT, etc.)

Xingruijia focuses on providing ABB industrial automation full range product services and your intelligent control solution partner

If you would like to learn more about our products and services, please feel free to contact us at any time!

Sales Manager : Jinny
Email : sales1@xrjdcs.com
Whatsapp/Mobile:+86 15359273791