Siemens JD23B200 Molded Case Circuit Breaker
- 200A
- 3 Pole
- Bolt-On
Siemens
JD23B200
Molded Case Circuit Breaker
Brand
Siemens
SKU
JD23B200
Quantity
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Siemens JD23B200 - 200A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for heavy-duty commercial use, this 200A, 3-pole molded case circuit breaker delivers reliable long-time and instantaneous protection. The JD2 frame unit utilizes a thermal-magnetic trip mechanism with adjustable magnetic settings. This bolt-on MCCB installs into Siemens Sentron panelboards, switchboards, and motor control centers. With a robust 65kAIC rating at 240VAC, it provides superior fault interruption. The breaker is HACR rated and UL 489 listed for dependable safety.Specifications
| Brand | Siemens |
|---|---|
| Series | JD2 |
| Amperage | 200A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 30kA @ 250VDC |
| Frame Type | JD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | (2) 3/0 AWG - 500 kcmil (Cu), (2) 4/0 AWG - 500 kcmil (Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| 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, Padlock Attachment, Motor Operator, Rotary Handle, Lug Kits |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip Unit |
Product FAQs
6 answersWhich Siemens distribution equipment accepts the JD23B200 breaker?
This J-Frame breaker mounts directly into Siemens Sentron panelboards, switchboards, and motor control centers. It can also be installed in standalone enclosures designed for bolt-on JD frame breakers.
Which lug kit is required for terminating conductors on the JD23B200?
The Siemens TA2J6500 mechanical lug kit is the standard field-installable option for this frame. It provides a 2-barrel connection for line and load sides, accommodating the required 3/0 AWG to 500 kcmil copper or 4/0 AWG to 500 kcmil aluminum conductors.
How does the trip unit operate on this JD frame breaker?
The JD23B200 utilizes a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element. The adjustable magnetic setting allows electricians to tune the instantaneous trip point, which helps coordinate with downstream devices and prevents nuisance tripping from high motor inrush currents.
How should this 3-pole breaker be wired for 250VDC applications?
While rated for 30kAIC at 250VDC, standard DC wiring practice for Siemens thermal-magnetic MCCBs requires using two of the three poles. Connect one pole to each leg of the DC supply circuit to ensure proper voltage distribution.
Is the JD23B200 considered a legacy circuit breaker?
Yes, the JD frame is part of the legacy Siemens Sentron series. It is typically sourced as a direct replacement for existing Sentron distribution equipment to avoid the need for retrofit hardware or panel modifications.
What are the primary safety considerations when replacing a JD23B200?
Ensure the upstream power is completely de-energized and locked out. Before commissioning, verify that the system's prospective short-circuit current does not exceed the breaker's 65kA maximum interrupting rating at 240VAC, and torque all lug connections to the manufacturer's specifications to prevent thermal failure.
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