Description
The Square D BJA160205 is a 1-pole, 20-amp molded case circuit breaker engineered for dependable circuit protection in industrial and commercial power systems. Designed for operation up to 600Y/347 VAC, it provides thermal-magnetic protection with a high interrupting capacity of 100kA at 240V. This I-Line plug-in style breaker ensures quick installation, strong electrical connectivity, and long-term performance under demanding conditions.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breaker |
| Part Number |
BJA160205 |
| Subcategory |
Molded Case |
| Series |
PowerPact B |
| Frame Type |
J Frame |
| Poles |
1 |
| Phase |
1 |
| Voltage Rating |
600Y/347 VAC |
| Current Rating |
20 A |
| Interrupting Capacity |
100kA @ 240V, 65kA @ 480V, 25kA @ 600V |
| Trip Technology |
Thermal-Magnetic |
| Trip Functions |
Long Time & Instantaneous |
| Connection Type |
I-Line Style Plug-In |
| Terminal Connection |
I-Line (line side), Lug (load side) |
| Wire Size |
AWG 14–2/0 Cu/Al |
| Frequency |
50/60 Hz |
| Insulation Voltage (Ui) |
800 V |
| Impulse Withstand Voltage (Uimp) |
8 kV |
| Mechanical Durability |
20,000 cycles |
| Electrical Durability |
10,000 cycles |
| Operating Temperature |
-25°C to +70°C |
| Approvals |
UL 489, CSA C22.2, IEC, NOM, CE, CCC, EAC, NEMA AB1 |
| IP Degree of Protection |
IP40 (Front cover) |
| Color |
Gray (RAL 7016) |
| Country of Origin |
Mexico |
| Weight |
1 lb |
Information About
BJA160205
The BJA160205 is part of the Square D PowerPact B-Series, a family of molded case circuit breakers known for compact design, thermal-mechanical precision, and high fault interruption capability. Built with an I-Line plug-in connection, it enables secure integration into distribution panels, simplifying assembly and maintenance. Its thermal-magnetic trip unit offers both long-time and instantaneous protection for overload and short-circuit events. Designed for single-pole applications, this unit supports operational voltages up to 600V and meets major global standards including UL 489, CSA, IEC, NOM, and CE.
Key Features:
- Rated Current: 20 Amps – Provides consistent performance for light to medium load circuits.
- Voltage Rating: 600Y/347 VAC – Supports high-voltage applications across industrial power systems.
- Interrupting Capacity: 100kA @ 240V – Ensures high-level fault protection for safe operation.
- Trip Technology: Thermal-Magnetic – Combines overload and short-circuit protection for efficiency.
- Connection Type: I-Line Plug-In – Enables fast installation and secure electrical connection.
- Compliance: UL, CSA, IEC, CE Certified – Meets international safety and performance standards.
- Durability: 20,000 mechanical cycles – Designed for extended service life under repetitive operations.
- Operating Temperature: -25°C to +70°C – Performs reliably across a wide ambient temperature range.
The BJA160205 delivers the reliability and precision required for efficient circuit protection in industrial, commercial, and high-performance electrical systems.
