Siemens HEG3B050L Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
Quantity
Siemens HEG3B050L - 50A 3 Pole Molded Case Circuit Breaker
New
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Description
Built for commercial power distribution, the Siemens HEG3B050L is a 50A, 3-pole molded case circuit breaker. As part of the SENTRON VL Frame family, it utilizes proven thermal-magnetic trip technology. This unit mount breaker is compatible with Siemens P4 and P5 panelboards and motor control centers. Unlike standard models, the L suffix indicates it comes complete with line and load lugs. Delivering a high interrupting capacity of 65kAIC at 480VAC, it meets rigorous safety standards.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HEG3B050L |
| Series | HEG |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 30kA @ 250VDC, 30kA @ 500VDC |
| Frame Type | HEB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersWhich Siemens panelboards are compatible with the HEG3B050L circuit breaker?
This unit mount breaker is designed for use in Siemens P4 and P5 panelboards, as well as compatible switchboards, motor control centers, and standalone enclosures.
Does the HEG3B050L come with lugs, and what wire sizes are accepted?
Yes, the L suffix in the catalog number indicates that this feed-thru breaker includes line and load lugs. The terminals accept 14 AWG to 1/0 AWG copper or aluminum wire.
Can the Siemens HEG3B050L be used in DC electrical systems?
Yes, this thermal-magnetic breaker is rated for DC applications. It provides an interrupting capacity of 30kAIC at both 250VDC and 500VDC.
How is the HEG3B050L installed in a panel?
This is a unit mount circuit breaker. It does not plug in; it must be hard-mounted and wired directly within compatible P4 or P5 panelboards, switchboards, or enclosures.
What type of trip unit is equipped on the HEG3B050L?
It features a thermal-magnetic trip unit with fixed thermal and fixed magnetic settings. This provides standard Long-Time and Instantaneous (LI) protection for commercial and industrial power distribution.
Is the HEG3B050L suitable for reverse feeding or HVAC equipment?
Yes, this breaker is suitable for reverse feed applications. It is also HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.
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