Siemens HHED63B100 | 100A 3-Pole 600V Bolt-On Molded Case Circuit Breaker
Siemens HHED63B100 | 100A 3-Pole 600V Bolt-On Molded Case Circuit Breaker
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The Siemens HHED63B100 is a heavy-duty, 3-pole thermal magnetic molded case circuit breaker from Siemens' trusted Sentron Series. Designed for demanding industrial and commercial power distribution applications, this bolt-on breaker delivers extra-high interrupting capacity and proven reliability at 600 VAC.
Whether you're replacing an aging breaker in a motor control center, switchgear panel, or industrial power distribution board, the HHED63B100 provides the protection and performance your system demands.
Key Specifications
| Part Number | HHED63B100 |
| Manufacturer | Siemens (ITE / Sentron Series) |
| Frame Type | HHED |
| Amperage | 100A @ 40°C |
| Voltage Rating | 600 VAC |
| Poles | 3-Pole / 3-Phase |
| Mounting Type | Bolt-On |
| Trip Type | Thermal Magnetic |
| Interrupting Rating (AIC) | 100 kAIC @ 240V | 65 kAIC @ 480V | 25 kAIC @ 600V (UL) |
| Terminal Type | Load-Side Lug Terminals |
| Wire Size | 10 AWG – 1/0 AWG (Aluminum/Copper) |
| Dimensions | 3" W × 4.56" D × 6.53" H |
| Weight | ~3.0 lbs |
| UPC | 783643308145 |
| Approvals | UL 489 / CSA 22.2 |
What Is a Molded Case Circuit Breaker (MCCB)?
A molded case circuit breaker (MCCB) is a type of electrical protection device designed to protect circuits from overloads and short circuits in commercial and industrial power systems. Unlike standard residential breakers, MCCBs like the HHED63B100 are built for higher current ratings, greater interrupting capacities, and more demanding environments.
The thermal magnetic trip mechanism in the HHED63B100 provides dual-mode protection: bimetallic strip response for sustained overloads, and magnetic instantaneous trip for high-current short circuit faults.
Why Choose the Siemens HHED63B100?
- Extra-High Interrupting Capacity: Rated up to 100 kAIC at 240V — ideal for high-fault-current environments
- Bolt-On Mounting: Fast, secure installation into compatible Siemens and ITE bolt-on panels
- 3-Phase Protection: Simultaneously protects all three phases for balanced power distribution
- Sentron Series Quality: Part of Siemens' industry-standard Sentron product family
- Broad Compatibility: Accepts 10 AWG to 1/0 AWG copper or aluminum conductors
- UL 489 & CSA Certified: Meets North American safety and performance standards
Common Applications
- Industrial motor control centers (MCCs)
- Commercial power distribution panels
- Manufacturing facilities and process control systems
- HVAC systems and large mechanical equipment
- Data centers and critical infrastructure panels
- Replacement for aging or failed Siemens HHED-frame breakers
Frequently Asked Questions
Q: What does "Bolt-On" mean for the HHED63B100?
A: Bolt-on refers to the mounting method — the breaker is physically bolted to the bus bar of a compatible panel, as opposed to plug-in breakers that slide into clips. Bolt-on provides a more secure mechanical connection, preferred in industrial applications.
Q: Is the HHED63B100 still manufactured by Siemens?
A: The HHED63B100 has been discontinued by the original manufacturer. However, new-in-box units sourced from authorized supply chains remain available through specialty distributors like Alpha Brokers & Controls.
Q: What panels is the HHED63B100 compatible with?
A: This breaker is compatible with Siemens and ITE bolt-on style panelboards and switchgear designed for the HHED frame type. Consult your panel's documentation or contact us to confirm compatibility.
Q: What is the AIC rating of the HHED63B100?
A: The interrupting rating (AIC) is 100 kAIC at 240V, 65 kAIC at 480V, and 25 kAIC at 600V per UL listing.
Q: Can this breaker handle aluminum wiring?
A: Yes. The lug terminals accept both copper and aluminum conductors ranging from 10 AWG to 1/0 AWG.
Have questions about compatibility or need a bulk quote? Contact the Alpha Brokers & Controls team — we specialize in hard-to-find industrial circuit breakers and electrical components.
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