OS250D03 ABB Industrial Servo Motor 2000 RPM 0.89A 100 VAC 1.5kw
OS250D03 Description
The ABB OS250D03 (Order No. 1SCA022720R7080) is a high-performance 3-pole (3P) DIN-mounted fused disconnect switch (switch-fuse) designed for reliable power distribution, circuit protection, and safe isolation in low-voltage industrial and commercial power systems. Rated at 250A and 690V AC, it combines switching, fusing, and safety disconnection functions in a compact, robust module. This model features a left-side operating mechanism (03) and is supplied without handle and shaft, allowing flexible integration with external rotary operating handles for panel or door mounting. It complies with IEC 60947-3 standards and is suitable for protecting motors, transformers, capacitors, and general power circuits.
OS250D03 Key Features
- High Breaking Capacity: 250A rated operational current (AC-22A/AC-23A) up to 690V AC
- Robust Short-Circuit Withstand: 8 kA for 1 second (Icw) and 80 kA conditional short-circuit current (Inc)
- Superior Insulation: 1000V insulation voltage (Ui) and 12 kV impulse withstand voltage (Uimp)
- Flexible Installation: DIN rail and base mounting; top/bottom configurable terminal connections
- Left-Side Mechanism (03): Optimized for standard cabinet layouts
- High Temperature Resistance: Pollution Degree 3, suitable for harsh industrial environment
- Low Power Loss: Only 23W per pole at rated conditions for energy efficienc
- Universal Fuse Compatibility: Accepts standard NH fuses for overcurrent protection
- Safety & Reliability: Clear ON/OFF indication; interlockable design; RoHS compliant
- Wide Power Range: Controls loads up to 250kW at 690V (AC-23A)
OS250D03 Materials & Applications
Materials
- Housing: High-strength, flame-retardant thermoset resin (UL 94 V-0)
- Contacts: Silver-plated copper alloy for low resistance and long wear life
- Terminals: Tin-plated copper busbars (25mm width) with high clamping torque
- Internal Frame: Reinforced insulating polymer for structural rigidity
- Fuse Holders: Heat-resistant ceramic and thermoplastic
- Operating Shaft: Galvanized steel (not included)
- Fasteners: Zinc-plated steel hardware
Typical Applications
- Industrial Power Distribution: Main and sub-distribution boards
- Motor Control Centers (MCCs): Motor starter protection and isolation
- HVAC & Pumping Systems: Fan, compressor, and pump circuit protection
- Data Centers & UPS Systems: Critical power supply isolation
- Manufacturing Machinery: CNC machines, conveyors, and processing equipment
- Commercial Buildings: Lighting, HVAC, and power panel protection
- Marine & Offshore: Shipboard power distribution (Type 1, 3R, 12)
- Renewable Energy: Solar inverter and wind turbine power circuits
OS250D03 Important Parameters
| Parameter |
Specification |
| Part Number |
OS250D03 (1SCA022720R7080) |
| Brand |
ABB |
| Type |
3-Pole (3P) DIN Switch Fuse Disconnector |
| Rated Current (In) |
250 A |
| Thermal Current (Ith) |
250 A (free-air / fully enclosed) |
| Rated Operational Voltage |
690 V AC (max.) |
| Insulation Voltage (Ui) |
1000 V |
| Impulse Withstand Voltage (Uimp) |
12 kV |
| Operational Current (Ie) AC-22A/AC-23A |
250 A (380–690 V) |
| Rated Power (Pe) AC-23A |
75 kW (230V) / 145 kW (415V) / 250 kW (690V)ABB Group |
| Short-Time Withstand Current (Icw) |
8 kA for 1 s |
| Conditional Short-Circuit Current (Inc) |
80 kA (at 690V) |
| Power Loss |
23 W per pole |
| Number of Poles |
3 |
| Fuse Compatibility |
Standard NH fuses |
| Terminal Type |
Lug terminals (25 mm width) |
| Tightening Torque |
30 – 44 N·m |
| Operating Mechanism |
Left side (03) |
| Handle/Shaft |
Not included |
| Mounting |
DIN rail / Base mount |
| Pollution Degree |
3 |
| Frequency |
50 / 60 Hz |
| Weight |
Approx. 3.9 kg |
| Standards |
IEC 60947-3, CE, RoHS, UL/cUL, CCC |
| Operating Temperature |
-25°C to +55°C |
| Certifications |
CE, UL, cUL, CCC, DNV GL |
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