Siemens HHED63M070 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
Siemens
HHED63M070
Molded Case Circuit Breaker
Brand
Siemens
SKU
HHED63M070
Quantity
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Siemens HHED63M070 - 70A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial, industrial, and marine applications, the Siemens HHED63M070 delivers reliable overcurrent protection in a compact ED frame. This 3-pole, 70A breaker features a thermal-magnetic trip unit and is calibrated for 50°C ambient temperatures, making it ideal for harsh environments. It installs into Siemens Sentron panelboards and switchboards using a secure bolt-on connection. Rated for an extra-high interrupting capacity of 65kA at 480VAC, it ensures robust fault clearing.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HHED63M070 |
| Series | HHED6 |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 18kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | HHED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Marine Applications |
| Wire Gauge | 10 AWG - 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 |
|---|---|
| Accessories | Load Side Lugs (LN1E100) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, UL 489, UL 489 Marine |
| Approval | CSA, IEC, UL, UL Marine |
| Temp Rating | 50C |
| Construction Features | Extra High Interrupting Capacity, Current Limiting, HACR Rated, Reverse Feed, Non-Interchangeable Trip, 50C Ambient Calibration |
Product FAQs
8 answersWhat panels accept the HHED63M070 circuit breaker?
This Sentron ED-frame breaker is designed for use in Siemens panelboards and switchboards. Its bolt-on mounting ensures a secure, vibration-resistant connection to the bus.
What does the M suffix in the HHED63M070 catalog number indicate?
The M suffix indicates the breaker is calibrated for a 50 degree Celsius ambient temperature. This specialized calibration makes it suitable for marine applications and other high-temperature industrial environments.
How does the HHED designation differ from standard ED-frame breakers?
The HH prefix denotes an extra-high interrupting capacity. While standard breakers have lower fault tolerances, the HHED63M070 can safely interrupt up to 65kA at 480VAC and 100kA at 240VAC for systems with high available fault currents.
What wire sizes are compatible with the lugs on this 70A breaker?
The factory-installed lugs accept copper or aluminum conductors ranging from 10 AWG to 1/0 AWG. Ensure proper torque specifications are followed during installation.
How does the thermal-magnetic trip unit protect the circuit?
The thermal component provides long-time delay protection against sustained overloads, while the magnetic component delivers instantaneous tripping to quickly clear severe short circuits. Both the thermal and magnetic settings are fixed on this model.
Can this Siemens breaker replace legacy ITE models?
Yes, Siemens acquired ITE, and current Sentron ED-frame breakers are often used to replace legacy ITE ED-frame breakers of the same physical size and rating. Always verify panel compatibility before installation.
Can the HHED63M070 be used in DC power systems?
Yes, this breaker is rated for direct current applications up to 250VDC, where it provides an interrupting capacity of 30kA.
Does this breaker require a separate mounting kit?
No, the HHED63M070 features a built-in bolt-on connection type. It bolts directly to the bus of compatible Siemens Sentron panelboards without requiring an external mounting adapter.
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