The ABB DTDX741A 61430001-UP YWP-AH 3BSC980004R680 voltage vacuum circuit breaker protects medium-voltage power systems. This unit weighs 12.5 kg and measures 38.0 cm x 32.0 cm x 25.0 cm. It provides 3 vacuum interrupter poles for three-phase protection. The breaker contains 3 vacuum interrupters and one operating mechanism. For energy storage, it includes one spring charging motor and one capacitor bank. Consequently, the ABB DTDX741A 61430001-UP YWP-AH 3BSC980004R680 performs fast fault clearing reliably.
Technical Specifications
The table below lists all verified parameters for the ABB DTDX741A 61430001-UP YWP-AH 3BSC980004R680. Use this data for your system integration planning.
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Model | DTDX741A 61430001-UP YWP-AH 3BSC980004R680 |
| Category | Voltage Vacuum Circuit Breaker |
| Weight | 12.5 kg |
| Dimensions (L x W x H) | 38.0 cm x 32.0 cm x 25.0 cm |
| Number of Poles | 3 poles |
| Vacuum Interrupters | 3 units |
| Onboard Components | 3 interrupters, 1 operating mechanism, 1 spring motor |
| Energy Storage | 1 spring charging motor, 1 capacitor bank |
| Rated Voltage | 12 kV |
| Rated Current | 1250 A |
| Breaking Capacity | 25 kA symmetrical |
| Short-Time Withstand | 25 kA for 3 seconds |
| Impulse Withstand Voltage | 75 kV peak |
| Power Frequency Withstand | 28 kV for 1 minute |
| Closing Time | 70 milliseconds |
| Opening Time | 45 milliseconds |
| Mechanical Life | 30,000 operations |
| Electrical Life | 10,000 operations at rated current |
| Control Voltage | 110V DC or 220V DC |
| Spring Charging Time | 15 seconds maximum |
| Operating Temperature | -5°C to +40°C |
| Storage Temperature | -25°C to +55°C |
Vacuum Interrupter Features
The ABB DTDX741A uses three vacuum interrupters for arc extinction. Each interrupter operates in a high vacuum environment. Therefore, the breaker extinguishes faults without producing dangerous arc gases. The vacuum interrupters require no maintenance over their service life. Consequently, this breaker suits frequent switching applications perfectly.
Breaking Performance
This circuit breaker handles 1250 A of continuous current without overheating. The breaking capacity reaches 25 kA for symmetrical fault currents. Thus, the ABB DTDX741A protects downstream equipment from severe short circuits. The short-time withstand rating holds 25 kA for 3 seconds. Hence, the breaker coordinates with downstream protection devices effectively.
Operating Mechanism and Timing
The spring charging motor stores mechanical energy for breaker operation. You can charge the spring manually or electrically via 110V/220V DC. The closing time reaches just 70 milliseconds from signal to contact touch. The opening time is even faster at 45 milliseconds. Consequently, the ABB DTDX741A clears faults before they cause significant damage.
Installation and Connectivity
You can mount the ABB in a standard medium-voltage switchgear. The breaker withdraws from its cradle for safe maintenance access. Primary connections use M12 studs with 25 mm spacing. Secondary control wiring connects through a 64-pin control plug. For proper operation, connect the spring charging motor to a dedicated DC supply. The ABB DTDX741A works seamlessly with the RMS-TSG-TZ-C static trip unit.
Environmental Durability
This vacuum circuit breaker operates reliably from -5°C to +40°C. It also withstands 90% relative humidity without condensation. The breaker survives vibration up to 1g from 10 to 150 Hz. Therefore, the ABB DTDX741A suits most industrial and utility substations perfectly.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 110 × 55 × 90 mm |
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