Overview
The ABB S202UK6A circuit breaker is a compact, single-enclosure miniature circuit breaker (MCB) from ABB’s S200 series. The S202U-K6A designation identifies this as a 2-pole unit with K-curve instantaneous trip characteristic and 6-ampere rating. These breakers provide supplementary overcurrent protection and are recognized under UL 1077 and CSA C22.2 standards for use in control circuits, commercial appliances, and industrial equipment.
Key Features
- 2-pole configuration for dual-line protection
- K-curve trip characteristic for sensitive electronics and semiconductor protection
- 6 kAIC (ampere interrupting capacity) at rated voltage
- Compact DIN rail mount for space-efficient panel integration
- Line and load side terminals for easy conductor termination
- UL 1077 and CSA C22.2 certified supplementary protector
Technical Specifications
- Rated Current: 6 amperes
- Poles: 2
- Trip Curve: K-curve (instantaneous)
- Rated Voltage: 480Y/277 VAC
- Interrupting Capacity: 6 kAIC at rated voltage
- Mounting: DIN rail (35 mm)
- Standards: UL 1077, CSA C22.2 No. 235
- Series: S200
- Configuration: Unenclosed (U)
Typical Applications
The S202UK6A is ideal for protecting control circuits, computer equipment, and sensitive electronic devices from overcurrent faults. It is commonly used in commercial and industrial applications where supplementary circuit protection is required, such as manufacturing equipment, HVAC systems, and light industrial control panels. The K-curve characteristic provides enhanced protection against inrush currents without nuisance trips.
Compatibility & Replacements
The S202U-K6A is part of ABB’s established S200 miniature circuit breaker family. Accessories including auxiliary contacts and accessory device modules can be field-mounted to compatible units. When replacing or upgrading, verify voltage rating (480Y/277V) and trip curve (K) match your application requirements. Other ABB S200 series breakers with different amperage ratings (13A, 16A, 20A, 25A, 32A, 40A, 50A, 63A) and trip characteristics (B, C, D, Z) are available for alternative configurations.
