Overview
The ABB S202U-K10 is a compact miniature circuit breaker from the System pro M compact S200U series, engineered for industrial automation, control circuits, and branch circuit protection. This current-limiting MCB combines thermal and electromechanical tripping mechanisms for reliable overload and short-circuit protection in both commercial and industrial electrical installations.
Key Features
- Current-limiting design reduces let-through energy during faults
- Dual tripping mechanisms: delayed thermal for overload, electromechanical for short-circuit protection
- K-curve trip characteristic ideal for inductive/motor loads and equipment with inrush current
- DIN rail mounting with line and load side terminals
- Compact footprint within System pro M compact series
- UL and CSA recognized as supplementary circuit protector
Technical Specifications
- Rated Current: 10 A
- Poles: 2 (2P)
- Voltage Rating: 240 VAC (standard rating)
- Breaking Capacity: 10 kA at rated voltage
- Trip Characteristic: K-curve
- Mounting: DIN rail (standard 35 mm)
- Terminal Type: Line and load side terminals for conductors 18–4 AWG
- Standards: UL489, UL1077 (recognized supplementary protector)
- Series: System pro M compact S200U
- Current Limiting: Yes
Typical Applications
The S202U-K10 is commonly deployed in:
- Industrial control panels and automation equipment
- Motor control and branch circuits with inductive loads
- Electrical distribution boards and switchgear
- Equipment protection against overcurrent faults
- Sub-panel and feeder protection in industrial facilities
Compatibility & Replacements
Compatible With
- DIN rail mounting systems (35 mm standard rail)
- System pro M compact S200U accessory line (shunt trips, auxiliary contacts, busbar systems)
- Industrial control systems operating at 240 VAC
- Electrical installations requiring UL489/UL1077 supplementary protection
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering.
Works With
- DIN rail mounted enclosures and panels
- Busbar conductors (upper or lower mounted)
- Standard MCB accessories: shunt trips, auxiliary contacts, alarm contacts, undervoltage releases
- ABB System pro M compact busbar systems
