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Siemens CJ3B200 Molded Case Circuit Breaker
- 200A
- 3 Pole
- Bolt-On
Siemens
CJ3B200
Molded Case Circuit Breaker
Brand
Siemens
SKU
CJ3B200
Quantity
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Siemens CJ3B200 - 200A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Description
The Siemens CJ3B200 is a legacy 3-pole, 200A MCCB from the classic Cordon series. Equipped with an integral fuse pac, it provides robust current-limiting protection for older commercial and industrial systems. This C-frame breaker mounts into vintage Siemens and ITE panelboards via a bolt-on connection. It delivers a 100kAIC rating at 480VAC and 600VAC. For modern upgrades, it is functionally replaced by the CFD63B200, though retrofitting is required when transitioning to the newer frame.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CJ3B200-R |
| Series | CJ |
| Amperage | 200A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 100kA @ 480VAC, 100kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens / ITE Panelboards (Legacy Cordon Series) |
| Wire Gauge | #4 AWG-300 kcmil (Cu), #2 AWG-300 kcmil (Al) |
| Max Wire | 300 kcmil |
| Min Wire | #4 AWG (Cu) / #2 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Cordon Fuse Pac (Integral) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, Interchangeable Trip Unit |
| Special Features | Current Limiting (Integrally Fused) |
Product FAQs
5 answersWhat is the modern replacement for the legacy CJ3B200 breaker?
The CJ3B200 is functionally replaced by the Siemens CFD63B200. Because the CFD63B200 uses a different frame size, retrofitting hardware is required to install it in older ITE or Siemens enclosures.
Which panelboards accept the CJ3B200 breaker?
This bolt-on breaker is specifically designed for legacy Siemens and ITE Cordon series panelboards that accommodate C-frame breakers.
What are the allowable wire sizes for the CJ3B200 terminals?
The standard lugs accept copper conductors from #4 AWG to 300 kcmil, and aluminum conductors from #2 AWG to 300 kcmil.
How does the CJ3B200 achieve its current limiting rating?
As part of the classic Cordon series, this breaker utilizes an integral fuse pac to provide current limiting protection. This design allows it to safely interrupt high fault currents up to 100kA at 600VAC.
Are the trip settings adjustable on the CJ3B200?
The thermal-magnetic trip unit features a fixed thermal element for long-time protection and an adjustable magnetic element for instantaneous short-circuit protection.
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