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Siemens B21500S01 Molded Case Circuit Breaker

  • 15A
  • 2 Pole
  • Bolt-On
Siemens B21500S01
Molded Case Circuit Breaker
Brand Siemens
SKU B21500S01
Select Item Condition
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  • 15A
  • 2 Pole
  • Bolt-On

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Siemens B21500S01 - 15A 2 Pole Molded Case Circuit Breaker

Siemens B21500S01 - 15A 2 Pole Molded Case Circuit Breaker

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$115.99 In Stock

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Description

Part of the Siemens B-frame lineup, the B21500S01 delivers reliable thermal-magnetic protection for commercial and industrial electrical systems. This 15A, two-pole molded case circuit breaker is engineered for demanding environments. It installs securely into Siemens P1 through P5 panelboards via a standard bolt-on connection, ensuring a vibration-resistant fit. Rated for 10kAIC at 120/240VAC, this unit features a factory-installed 120VAC shunt trip for remote emergency shutdown capabilities.

Specifications

Key specifications
Brand Siemens
Part Number B21500S01
Series B
Amperage 15A
Poles 2
Mounting Style Bolt-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Terminal Type Lugs
For Use With Siemens P1, P2, P3, P4, P5 Panelboards
Wire Gauge 14-10 AWG (Cu), 12-10 AWG (Al)
Max Wire 10 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Auxiliary Switch, Alarm Switch, Padlock Attachment
Accessories Shunt Trip 120VAC (Factory Installed)
Standards CSA C22.2 No. 5, HACR, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, HID Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism

Product FAQs

5 answers
Which Siemens panelboards accept the B21500S01 circuit breaker?

This bolt-on breaker is compatible with Siemens P1, P2, P3, P4, and P5 panelboards.

Does the B21500S01 feature remote tripping capabilities?

Yes, this breaker includes a factory-installed 120VAC shunt trip accessory, allowing for remote emergency shutdown.

What wire gauges are supported by the terminals on this breaker?

The lugs accept 14 to 10 AWG copper conductors or 12 to 10 AWG aluminum conductors.

How does the thermal-magnetic trip unit operate on the B21500S01?

The breaker uses fixed Long-Time and Instantaneous (LI) trip functions. The thermal element provides delayed tripping for overloads, while the magnetic element provides immediate tripping for short circuits.

What breaker type and frame series is the B21500S01?

The B21500S01 is a Type BL molded case circuit breaker, which is part of the Siemens B-frame family.

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