Siemens HEG3B015L Molded Case Circuit Breaker
- 15A
- 3 Pole
- Unit Mount
Quantity
Siemens HEG3B015L - 15A 3 Pole Molded Case Circuit Breaker
New
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Description
Belonging to the Siemens VL Series, the HEG3B015L is a 3-pole, 15-amp molded case circuit breaker built for commercial power distribution. It utilizes a thermal-magnetic trip unit to provide fixed long-time and instantaneous (LI) overcurrent protection. This unit-mount MCCB installs into Siemens P4 and P5 panelboards, motor control centers, and switchboards. Unlike the base model, it includes 3TA1EG10 line and load lugs. It features a 65kAIC rating at 480VAC and is fully HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HEG3B015L |
| Series | HEG |
| Amperage | 15A |
| 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs (3TA1EG10) |
| 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, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersWhich Siemens panelboards are compatible with the HEG3B015L circuit breaker?
The HEG3B015L is designed for use in Siemens P4 and P5 panelboards, as well as compatible switchboards, motor control centers, and enclosures.
What wire sizes are accepted by the lugs on the HEG3B015L?
The factory-installed lugs accept 14 AWG to 1/0 AWG copper or aluminum wire.
Can the HEG3B015L be installed in direct current (DC) applications?
Yes, in addition to its AC ratings, this thermal-magnetic breaker is certified for DC systems up to 500VDC, making it suitable for specific solar, battery, or industrial DC control circuits.
What frame class does the HEG3B015L belong to?
It is part of the Siemens VL Series of molded case circuit breakers and utilizes the EG frame size. The H in the prefix indicates it is the high-interrupting tier of the EG frame family.
What does a feed-thru connection mean for the HEG3B015L?
As a unit-mount, feed-thru breaker, it does not connect directly to a panelboard busbar. Instead, it mounts independently and requires wire connections at both the line and load side lugs.
Are the thermal and magnetic trip points adjustable on the HEG3B015L?
No, this breaker uses a fixed thermal and fixed magnetic trip unit. It provides standard Long-Time and Instantaneous (LI) protection, but the trip curves cannot be field-adjusted.
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