Square D PowerPacT B 3-Pole I-Line Thermal Magnetic Circuit Breaker, 347VAC, 18kA

Square D PowerPacT B 3-Pole I-Line Thermal Magnetic Circuit Breaker, 347VAC, 18kA

The Square D PowerPacT B-Frame circuit breaker delivers compact thermal-mechanical circuit protection for panelboard and I-Line switchboard distribution systems. This 3-pole, thermal magnetic breaker is rated 0Y/347VAC with an 18kA interrupt rating and connects via I-Line line connection with load lugs, making it well suited for commercial and industrial distribution applications. Backed by UL 489 listing and a broad range of compatible accessories and auxiliaries, it offers dependable, code-compliant performance.

Key Features

• Configuration: 3-pole thermal magnetic circuit breaker for distribution applications.
• Electrical Connection: I-Line connection, line; lugs, load, for direct panelboard/switchboard mounting.
• Voltage & Interrupt Rating: Rated 0Y/347VAC (Ue 525V AC 50/60Hz per UL 489) with Ics 18kA at 500...525V AC per IEC 60947-2.
• Wire Range: Accepts AWG 14...AWG 2/0 aluminum/copper conductors, tightening torque 3.6-4.4 N.m (AWG 14-10) and 5-6.2 N.m (AWG 8-2/0).
• Control Type: Toggle operating handle, suitable for isolation per IEC 60947-2.
• Durability: 20,000 mechanical cycles and 10,000 electrical cycles per IEC 947-1 Annex K.
• Ambient Operating Range: -25°C to 70°C.
• Application: HACR rated distribution device with IP40 front cover degree of protection.

Certifications & Compliance

• UL 489 Listed
• CSA C22.2 No. 5
• NEMA AB1
• EN/IEC 60947-2 and EN/IEC 60947-5-1
• GB 14048.2
• NMX J-266
• Product Certifications: UL, NOM, CCC, EAC, IEC, CSA

Technical Specifications

• Sustainable Packaging: Yes
• Recycled Metal Content At Cr Level: 0 %
• Poles Description: 3P
• Serviceability: No
• With Recycled Cardboard: Yes
• 9 MM Pitches: 9
• China ROHS In Scope: No
• Tier: 1
• Legacy WEEE Scope: In
• Packaging Made With Recycled Cardboard: Yes
• Removable Battery: NO
• Without Single Use Plastic: Yes
• ROHS Exemption Information: Yes
• Quality Labels: CE
• WEEE Product Category: 4
• Mercury Free: Yes
• ROHS Eur In Scope: Yes

Typical Applications

• Panelboard and Load Center Distribution
• I-Line Switchboard and Panelboard Systems
• Commercial and Industrial Electrical Distribution
• HACR-Rated Air Conditioning and Refrigeration Circuits
• New Construction and Retrofit Distribution Upgrades

Why Square D?

Square D PowerPacT B-Frame breakers are manufactured by Schneider Electric and carry UL, CSA, IEC, NOM, CCC, and EAC certifications, giving electrical professionals confidence in code-compliant, reliable circuit protection. The breaker is a Green Premium product that is halogen-free and mercury-free, reflecting a durable, thoughtfully engineered design suited to demanding commercial and industrial distribution environments.