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Siemens HED43B070L Molded Case Circuit Breaker
- 70A
- 3 Pole
- Unit Mount
Siemens
HED43B070L
Molded Case Circuit Breaker
Brand
Siemens
SKU
HED43B070L
Quantity
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Siemens HED43B070L - 70A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Siemens HED43B070L provides robust thermal-magnetic trip protection. This 3-pole, 70-amp unit mount breaker is designed for use in standard enclosures, motor control centers, and switchboards. It features a high interrupting capacity of 100kA at 240V and 42kA at 480V. Factory-installed line and load lugs are included for straightforward wiring. Note that this legacy ED frame model is replaced by the 3VA5170-6EC31-0AA0.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HED43B070L |
| Series | HED4 |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 42kA @ 480VAC, 30kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, Padlock Attachment |
|---|---|
| Accessories | Line and Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
10 answersWhat is the modern replacement for the HED43B070L?
This legacy ED frame breaker has been replaced by the Siemens 3VA5170-6EC31-0AA0.
What does the L at the end of the HED43B070L catalog number indicate?
The L signifies that the breaker comes with factory-installed line and load lugs.
Which specific lug kit is included with this breaker?
It includes the Siemens LN1E100 lug kit on both the line and load sides.
Is the HED43B070L suitable for HVAC applications?
Yes, this breaker is HACR rated, making it approved for use with heating, air conditioning, and refrigeration equipment.
Can this circuit breaker be reverse fed?
Yes, the HED43B070L is designed to allow reverse feeding.
Is the trip unit on this breaker interchangeable?
No, it features a fixed, non-interchangeable thermal magnetic trip unit.
What type of mounting does this breaker require?
It is a unit mount breaker, meaning it is designed to be bolted directly to a mounting surface or bracket rather than connecting to a panelboard bus.
What equipment is compatible with this ED frame breaker?
It is designed for use in Siemens enclosures, switchboards, and motor control centers that accept unit mount ED frame breakers.
Can I use aluminum wire with the factory lugs?
Yes, the included lugs are rated for both copper and aluminum conductors ranging from 10 AWG to 1/0 AWG.
How does the HED4 series differ from standard models?
The H in HED4 indicates a high interrupting capacity, allowing this model to safely interrupt up to 42kA at 480VAC.
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