Designed for heavy-duty commercial environments, this 30A single-pole breaker delivers reliable overcurrent protection. The unit utilizes standard bolt-on mounting to integrate into Siemens P1, P2, and P3 panelboards. For legacy system maintenance, be aware that this specific model has been superseded by the HEG1B030B. It comes equipped with TA1EG10 load side lugs. High interrupting capacity is a key feature, rated at 65kA at 277VAC, alongside HACR and HID ratings for specialized loads.
Which panelboards are compatible with the Siemens HEB1B030B circuit breaker?
The HEB1B030B is designed for bolt-on installation in Siemens P1, P2, and P3 distribution panelboards.
What wire sizes are accepted by the lugs on the HEB1B030B?
The factory-installed load lugs accommodate 14 AWG through 1/0 AWG copper or aluminum conductors.
Can the HEB1B030B be used in DC control or distribution circuits?
Yes, this breaker is rated for 125VDC applications and provides an interrupting capacity of 42kAIC at that voltage.
What is the interrupting capacity of this breaker on a 277V circuit?
The HEB1B030B provides a high interrupting capacity of 65kAIC at 277VAC, making it suitable for commercial lighting and heavy-duty industrial applications.
Is the HEB1B030B rated for 347V lighting systems?
Yes, it is rated for 347VAC applications, which are common in Canadian commercial and industrial lighting systems, with an interrupting capacity of 25kAIC.
What is the difference between Siemens NEB and HEB frame circuit breakers?
Both belong to the SENTRON NEB/HEB frame group and share identical physical dimensions for panel mounting, but the HEB series offers a higher interrupting capacity for systems with higher available fault currents.
How does the HEB1B030B mount into the panelboard?
It utilizes a standard bolt-on connection to secure directly to the panelboard bus, providing a reliable contact that resists loosening from thermal cycling or vibration.
What type of trip unit is installed in the HEB1B030B?
It features a fixed thermal-magnetic trip unit that provides long-time protection against overloads and instantaneous protection against short circuits.
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Customers rate this product 4.0 out of 5 based on 1 review.