Product Description
The ABB BU201M K30A is a single-pole miniature circuit breaker (MCB) featuring a K-characteristic tripping curve, rated at 30 amperes. Designed for branch circuit protection in industrial and commercial electrical systems, it provides thermal-magnetic trip protection against overloads and short circuits. The K-curve characteristic makes it ideal for motor and transformer protection applications where high inrush currents are present. The breaker mounts on a standard 35mm DIN rail, features finger-safe screw terminals, a sealable actuator, and complies with UL 489, CSA 22.2 No. 5, and IEC/EN 60947-2 standards.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | ABB |
| Model / Part Number | BU201M K30A |
| Product Type | Miniature Circuit Breaker (MCB) |
| Number of Poles | 1 |
| Rated Current | 30 A |
| Tripping Characteristic | K-Curve (Thermal Magnetic) |
| Voltage Rating (AC) | 277/480Y VAC |
| Voltage Rating (DC) | 48/96 VDC |
| Interrupt Rating | 10 kA |
| Frequency | 50/60 Hz |
| Mounting Type | 35mm DIN Rail (TH35-7.5) |
| Terminal Connection Type | Screw Terminal |
| Wire Size (Conductor) | 18–4 AWG |
| Wire Size (Busbar) | 18–8 AWG |
| Enclosure / Protection Degree | IP20 / IP40 (with cover accessory) |
| Temperature Rating | -25°C to +55°C |
| Power Loss (at 30A) | 3.5 W |
| Tightening Torque | 2.8 N·m (25 in·lbs) |
| Dimensions (L x W x H) | 69 mm x 17.5 mm x 111 mm |
| Standards / Approvals | UL 489, CSA 22.2 No. 5, IEC/EN 60947-2 |
| Housing Color | Light Gray (RAL 7035) |
| Auxiliary Contacts | Optional (accessory) |
| Shunt Trip | Optional (accessory) |
| Mechanical Endurance | 20,000 operations |
We warranty all items for 30 days from date of purchase.
Other Details
We warranty all items for 30 days from date of purchase. If you experience any issues with your item within this period, please contact us and we will work with you to resolve the problem. This warranty covers defects in functionality but does not cover damage caused by misuse, improper installation, or normal wear and tear.Product Videos
Custom Field
GTIN 679523686185
Mounting Style 35 mm DIN Rail
Current Rating 30 A
Country/Region of Manufacture Bulgaria
Connection Type Screw Terminal
Dimensions 69 mm L x 17.5 mm W x 111 mm H
Material Thermoplastic (RAL 7035 Light Gray)
Torque 2.8 N·m
Voltage Rating 277/480Y VAC, 48/96 VDC
Frequency 50/60 Hz
Manufacturer ABB
Enclosure Type IP20 / IP40 with accessory cover
Part Number BU201M K30A
Series SU200M (inferred — see quality flag)
Shelf J-47
Model BU201M K30A
MPN BU201M K30A
Voltage 277/480Y VAC, 48/96 VDC
Type Circuit Breaker
