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Siemens B345H 45A 3P 240V Circuit Breaker, Bolt-On | AmpState
★★★★★
| Part Number | B345H |
| Amperes | 45 |
| Poles | 3 |
| Voltage | 240 |
| Product Type | circuit-breaker |
Regular price
$461.00
Sale price
$461.00
Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Siemens B345H 45A 3P 240V Circuit Breaker, Bolt-On | AmpState
Regular price
$461.00
Sale price
$461.00
Regular price
Unit price
Product description
Shipping
Meet the Siemens B345H 45A 3P 240V Bolt-On Circuit Breaker—the dependable choice for everyday electrical protection in panelboards, load centers, and electrical distribution networks. Built to handle three-phase systems with precise, secure mounting, this breaker is a smart addition to any professional toolkit or spare parts inventory.
Why this breaker stands out
- Direct part-number match: Specifically designed with the B345H designation, it’s the reliable replacement when exact Siemens compatibility matters for retrofit projects, new builds, or panel upgrades.
- Three-pole, 240V protection: Ideal for three-phase circuits common in commercial and light industrial applications, delivering coordinated protection across all phases.
- Bolt-on mounting: Provides a secure, vibration-resistant connection inside panelboards and distribution equipment, simplifying installation and reducing a common failure point.
- 45 A capacity for balanced distribution and motor loads while fitting neatly into standard Siemens protection strategies for 240V systems.
- Versatile use for professionals: A trusted part for maintenance teams, panel builders, and service fleets who need reliable, ready-to-ship replacements.
What this means in practice
- Maintenance and service calls: Quickly swap in a direct-match breaker to minimize downtime when a circuit trips or a panel needs rebalancing after upgrades.
- Panel fabrication and retrofits: Use this 3P 240V bolt-on breaker to maintain consistent protection across newly wired or upgraded distribution systems.
- Spare inventory strategy: Keep a ready-to-install B345H on hand to cover 3-phase protection needs without guessing compatibility.
Specs at a glance: 45 A, 3 poles, 240 V, Siemens brand, bolt-on design. This component plays a critical role in circuit protection, helping maintain safe electrical distribution and reducing the risk of overloads and short circuits in everyday operations.
Available from AmpState. Need help matching a part-number or confirming compatibility? Message us and we’ll help you confirm fit.
Contact sales@ampstate.com
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