BQ3B070 - Siemens 70 Amp 240 Volt 3-Pole BQ Series Bolt-On Circuit Breaker 10kA Interrupt Rating

Product Overview

The BQ3B070 is a Siemens BQ Series bolt‑on circuit breaker rated 70 amps for 240 volt three‑pole applications with a 10 kA interrupting rating.

This listing is for the single SKU BQ3B070. Request a quote for pricing and availability; confirm model and quantity before ordering.

Key Features

• Manufacturer: Siemens
• Model: BQ3B070
• Rating: 70 A (amperes)
• Poles: 3‑pole
• Voltage: 240 V
• Mounting: BQ Series bolt‑on
• Interrupting rating: 10 kA

Function and intended use

The BQ3B070 is a three‑pole overcurrent protective device designed to interrupt fault currents and protect conductors and equipment in 240 volt three‑phase or split‑phase systems. It is part of Siemens' BQ bolt‑on family used in compatible load centers and distribution panels.

• Three‑pole configuration suitable for multi‑phase circuits requiring simultaneous pole switching
• Protects wiring and downstream equipment from overloads and short circuits up to its rated interrupting capacity

Electrical ratings and performance

Key electrical specifications define where this breaker can be applied in power distribution systems.

• Ampacity: 70 A
• Voltage rating: 240 V
• Interrupting rating: 10 kA (10,000 amperes)

Mounting and physical configuration

The BQ3B070 uses the BQ Series bolt‑on mounting style intended for installation in compatible Siemens bolt‑on panelboards and load centers. Verify panel compatibility and physical dimensions with the panel manufacturer or installation documentation.

• Mounting type: BQ Series bolt‑on
• Poles: 3 (three‑pole breaker)

Ordering guidance

This page represents the single SKU BQ3B070. Confirm the exact model number and the quantity required before requesting a quote or placing an order.

• Contact Lumera Electric for a quote and to confirm compatibility with your panelboard
• Provide panel model and any job‑specific requirements to ensure correct selection

Before You Order

Confirm the model number and quantity required before ordering. Verify panel compatibility, required trip characteristics, and any local code or project specifications with your electrical contractor or the panel manufacturer.

• Verify that a 3‑pole 70 A, 240 V breaker with 10 kA interrupting rating meets system and code requirements
• Provide panelboard model and accessory requirements when requesting a quote

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for BQ3B070 - Siemens 70 Amp 240 Volt 3-Pole BQ Series Bolt-On Circuit Breaker 10kA Interrupt Rating. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.