Siemens CED63B100L Molded Case Circuit Breaker | 100A 3-Pole 600V Feed-Thru MCCB
Siemens CED63B100L Molded Case Circuit Breaker | 100A 3-Pole 600V Feed-Thru MCCB
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Siemens CED63B100L — 100 Amp, 3-Pole, 600V Thermal Magnetic Molded Case Circuit Breaker (Feed-Thru)
The Siemens CED63B100L is a high-performance, thermal magnetic molded case circuit breaker (MCCB) from the Siemens Sentron Series, Type CED. Engineered for demanding commercial and industrial power distribution environments, this breaker combines an extra-high interrupting capacity of 200kA at 480V with a feed-thru lug configuration — making it the go-to solution for applications where standard-rated breakers fall short.
The "L" suffix denotes integrated line and load side lug terminals, enabling direct feed-through wiring for daisy-chaining panelboards or connecting two distribution points from a single feeder. This eliminates the need for separate lug kits and reduces installation time significantly.
Key Specifications
| Part Number | CED63B100L |
| Manufacturer | Siemens |
| Series | Sentron Series, Type CED |
| Number of Poles | 3-Pole (3P / 3PH) |
| Current Rating | 100 Amperes |
| Voltage Rating | 600V AC |
| Interrupting Capacity | 200kA @ 480V (Extra High) |
| Trip Type | Thermal Magnetic (LI – Long-Time & Instantaneous) |
| Mounting Type | Feed-Thru |
| Lug Configuration | Line & Load Side Lug Terminals (included) |
| Ambient Temperature Rating | 40°C |
| Phase | 3-Phase |
Why Choose the CED63B100L?
Extra-High Interrupting Capacity
Unlike standard or even high-rated MCCBs, the CED frame delivers an industry-leading 200kA interrupting capacity at 480V. This makes it ideal for applications close to large transformers or utility service entrances where fault current levels are exceptionally high.
Feed-Thru Lug Design
The feed-thru configuration allows the breaker to serve as both a protection device and a distribution point. Line-side and load-side lug terminals are factory-installed, supporting multi-panelboard configurations and reducing field labor costs.
Thermal Magnetic Trip Unit
The LI trip unit provides reliable Long-Time (overload) and Instantaneous (short-circuit) protection — two of the most essential protective functions for industrial and commercial branch circuit applications. No field calibration required.
Siemens Sentron Series Quality
Built under the Siemens Sentron product line, this breaker meets stringent UL 489 standards and is engineered for long service life in switchboards, panelboards, and motor control centers.
Typical Applications
- Commercial and industrial power distribution panelboards
- Motor control centers (MCCs)
- Switchboards requiring extra-high fault current protection
- Feed-through installations connecting multiple downstream panelboards
- Service entrance and main distribution equipment
- Manufacturing facilities, data centers, and utilities
What Does "Feed-Thru" Mean on a Circuit Breaker?
A feed-thru circuit breaker includes both line-side and load-side lug terminals, allowing a single feeder cable to pass through the breaker and continue to another panelboard or distribution point. This is especially common in multi-section switchboards and subpanel installations. The "L" suffix in the catalog number (CED63B100L) confirms this lug-included, feed-through configuration.
Frequently Asked Questions
What is the interrupting rating of the Siemens CED63B100L?
The CED63B100L has an extra-high interrupting capacity of 200kA at 480V, making it suitable for high-fault-current environments near large transformers or utility service points.
What does the "L" suffix mean in CED63B100L?
The "L" suffix indicates that the breaker includes factory-installed line and load side lug terminals, enabling feed-through wiring without additional lug kits.
Is the CED63B100L UL Listed?
Yes, Siemens CED series circuit breakers are manufactured to UL 489 standards, making them suitable for use in UL-listed panelboards and switchboards across the United States and Canada.
What is the difference between CED63B100 and CED63B100L?
The CED63B100 (without "L") typically comes with load-side lugs only, while the CED63B100L includes both line and load side lug terminals for feed-through applications.
What Siemens panelboards is the CED63B100L compatible with?
This breaker is designed for use in Siemens P-Series panelboards and compatible switchboards. Always verify compatibility with your specific panelboard model and consult the Siemens selection guide before installation.