Siemens B37000S01 70A 3P 240V Circuit Breaker, Bolt-On, Shunt Trip | AmpState

The Siemens B37000S01 is a rugged, ready-to-install 3-pole circuit breaker designed to protect circuit wiring and equipment in panelboards, load centers, and electrical distribution setups. With a 70 A rating and 240 V operating voltage, this bolt-on breaker delivers reliable, balanced protection for three-phase systems, helping prevent overloads and electrical faults across your distribution network. The built-in shunt trip adds a remote-trip capability, enabling immediate safety control from an external signaling or control system when emergency shutdowns or interlocks are required.

Why this matters

In retrofit projects or maintenance plans where you must preserve a specific part number for consistency and stock, the B37000S01 shines. Its bolt-on mounting provides a secure, straightforward installation path on compatible panels, reducing field wiring complexity and ensuring a robust connection that's less prone to vibration or loosening over time. The 3-pole, 240 V configuration makes it ideal for modernized 3-phase feeds, protecting all phases together for coordinated shutdown and fault isolation.

Key features and specifications

• Amperage: 70 A
• Poles: 3
• Voltage: 240 V
• Mounting: Bolt-On
• Trip type: Shunt Trip (remote-trip capability)
• Manufacturer: Siemens
• Part Number: B37000S01

Ideal use cases

• Retrofit projects where maintaining a consistent part number across service life cycles simplifies stocking and maintenance planning
• Panelboards and load centers in commercial or light industrial installations requiring reliable three-phase protection
• Motor feeders and distributed circuits that benefit from coordinated 3-phase trip and quick remote shutdown
• Systems integrating safety interlocks or emergency shutdown controls that rely on a remote-trip signal

Installation, compatibility, and practical notes

Designed for bolt-on mounting, the B37000S01 is suited for installations where secure mechanical and electrical connections are essential. Its 3-pole, 240 V rating aligns with common three-phase distribution configurations, making it a practical upgrade or replacement in many existing panels. For exact compatibility with your specific panelboard model, AmpState is ready to assist with part-matching and fit confirmation to ensure seamless integration.

Why buy from AmpState

AmpState stocks Siemens B37000S01 and provides expert guidance to help you confirm fit, plan maintenance, and streamline ordering for ongoing electrical protection needs. If you’re updating a fleet of breakers or standardizing spare parts across sites, this breaker’s consistent part number and proven Siemens reliability help you keep downtime to a minimum.