Siemens HHED63M020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Siemens
HHED63M020
Molded Case Circuit Breaker
Brand
Siemens
SKU
HHED63M020
Quantity
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Siemens HHED63M020 - 20A 3 Pole Molded Case Circuit Breaker
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Description
Designed for demanding marine applications, the Siemens HHED63M020 is a 3-pole, 20A molded case circuit breaker. This ED frame unit features a 50°C ambient calibration, ensuring accurate thermal-magnetic trip performance in high-temperature environments up to 600VAC. It installs into Siemens P1, P2, and P3 panelboards or motor control centers using a robust bolt-on connection. The breaker delivers an extra high 65kAIC rating at 480V and includes fixed LI trip functions.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HHED63M020 |
| Series | HHED6 |
| Amperage | 20A |
| 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 P1, P2, P3 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 50C |
| Construction Features | Extra High Interrupting Capacity, HACR Rated, 50C Ambient Calibration, Marine Rated, Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism |
Product FAQs
8 answersWhich Siemens panelboards are compatible with the HHED63M020 breaker?
This bolt-on ED frame breaker is designed for use in Siemens P1, P2, and P3 commercial panelboards, as well as compatible switchboards and motor control centers.
Will the HHED63M020 fit in a standard Siemens residential load center?
No. This is an ED frame bolt-on breaker engineered for commercial and industrial distribution equipment. It will not fit in standard residential plug-on load centers.
What wire sizes are accepted by the lugs on the HHED63M020?
The standard lugs on this 20A breaker accept 14-10 AWG copper (Cu) or 12-10 AWG aluminum (Al) conductors. Ensure proper torque is applied during installation as specified by the manufacturer.
How is the HHED63M020 installed in a panelboard?
This is a bolt-on circuit breaker. It secures directly to the busbars of compatible Siemens commercial panelboards using mounting screws, providing a robust connection for industrial applications.
Can I adjust the trip settings on the HHED63M020?
No. This breaker features a fixed thermal and fixed magnetic trip unit. The Long-Time and Instantaneous trip functions are factory-set for 20A protection and cannot be adjusted in the field.
Is the HHED63M020 rated for direct current (DC) applications?
Yes, this breaker is rated for up to 250VDC with an interrupting capacity of 30kA, making it suitable for specific DC control and distribution circuits.
What does the LI trip function indicate on the HHED63M020?
The LI designation means the breaker provides Long-Time and Instantaneous trip functions. Long-Time protects against sustained overloads, while Instantaneous provides immediate tripping during severe short circuits.
What does the HHED designation mean compared to standard ED breakers?
The HHED designation indicates an Extra High Interrupting Capacity (IC) rating within the Siemens ED frame family. While it shares the same physical footprint as standard ED breakers, it is engineered to safely interrupt higher fault currents, such as 65kA at 480VAC.
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