Siemens RXD63B180 Molded Case Circuit Breaker
- 1800A
- 3 Pole
- Unit Mount
Quantity
Siemens RXD63B180 - 1800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of the legacy Sentron R-frame family, this 1800A unit mount MCCB provides reliable overcurrent protection for heavy industrial facilities. It features a non-interchangeable thermal-magnetic trip unit with long-time and instantaneous (LI) functions. Designed to integrate seamlessly, it mounts into Siemens SB1, SB2, and SB3 switchboard configurations. The robust construction utilizes standard lug connections for secure power distribution.Specifications
| Brand | Siemens |
|---|---|
| Part Number | RXD63B180 |
| Series | RXD |
| Amperage | 1800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 30kA @ 250VDC, 25kA @ 500VDC |
| Frame Type | RD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Switchboards (SB1, SB2, SB3) |
| 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, Alarm Switch, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5.1, HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
7 answersWhich switchboards are compatible with the RXD63B180 circuit breaker?
This 1800A RD-frame breaker is designed to mount seamlessly into Siemens SB1, SB2, and SB3 switchboard configurations.
What is the instantaneous magnetic trip adjustment range for the RXD63B180?
The adjustable magnetic trip function on this 1800A thermal-magnetic breaker can be set between 5000A and 10000A.
Are line and load lugs included with the RXD63B180?
No, standard RD-frame breakers like the RXD63B180 are supplied without lugs. Compatible lug kits must be sourced separately based on your specific conductor size and material requirements.
Can the RXD63B180 be applied to DC electrical systems?
Yes, this breaker is rated for use on DC circuits. It provides an interrupting capacity of 30kA at 250VDC and 25kA at 500VDC.
What frame family does the RXD63B180 belong to?
It is part of the legacy Siemens Sentron RD frame, also known as the R-Frame family of molded case circuit breakers.
Is the thermal-magnetic trip unit on the RXD63B180 interchangeable?
No, this specific catalog number is built with a non-interchangeable thermal-magnetic trip unit.
How is the thermal-magnetic trip unit configured on the RXD63B180?
It features Long-Time and Instantaneous (LI) protection. The thermal element for overload protection is fixed at 1800A, while the magnetic instantaneous element for short-circuit protection is adjustable.
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