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Siemens ED63B050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Bolt-On
Siemens
ED63B050
Molded Case Circuit Breaker
Brand
Siemens
SKU
ED63B050
Quantity
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Siemens ED63B050 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens ED63B050 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | ED63B050 |
| Series | ED6 |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs (LN1E100) |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Quantity
Siemens ED63B050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | ED63B050-R |
| Series | ED6 |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs (LN1E100) |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
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Description
Designed specifically for Siemens P1, P2, and P3 panelboards, this 50-amp bolt-on breaker provides robust thermal-magnetic protection. The unit features fixed thermal and magnetic trip settings for consistent performance in commercial environments. Equipped with load lugs only, it handles up to 65kA fault currents at 240VAC. The reverse feed capable design also includes a HACR rating, making it suitable for heating and air conditioning circuits.Specifications
| Brand | Siemens |
|---|---|
| Part Number | ED63B050 |
| Series | ED6 |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs (LN1E100) |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersWhat panelboards are compatible with the Siemens ED63B050?
This ED-frame breaker mounts in Siemens P1, P2, and P3 panelboards, as well as compatible Siemens switchboards. Field installation in a P1 panel requires an ED-frame mounting kit, such as the MBKED3 for three-phase systems.
Is the ED63B050 circuit breaker suitable for reverse feed applications?
Yes. All Siemens ED-frame molded case circuit breakers are reverse connectable. The breaker can be back-fed without affecting the thermal-magnetic trip characteristics or interrupting ratings.
What lug terminals are included with the ED63B050 breaker?
This breaker typically ships equipped with load-side lugs only, utilizing Siemens lug catalog number LN1E100. These lugs accept 10 AWG to 1/0 AWG copper or aluminum wire. Line-side connections are typically made directly to the panelboard bus via the bolt-on connection.
Are the trip functions on the ED63B050 adjustable?
No. The breaker features a non-interchangeable thermal-magnetic trip unit with fixed long-time and fixed instantaneous trip settings. Field adjustment is not possible.
What is the ambient temperature calibration for this circuit breaker?
The thermal-magnetic trip unit is calibrated for continuous operation at 40 degrees Celsius. Sustained operation in environments exceeding this ambient temperature requires appropriate derating.
Can the ED63B050 be utilized in direct current power systems?
Yes. While commonly used in AC systems up to 600VAC, this breaker is also rated for 250VDC applications, providing a 30kAIC interrupting capacity for DC circuits.
Does the ED63B050 meet international electrical standards?
Yes. The breaker is UL 489 listed for North American installations and also meets IEC 60947-2 standards for international applications.
Can this breaker be used for motor circuit protection?
Yes. Molded case circuit breakers in this series are suitable as a disconnecting means and for short-circuit protection in motor circuits. They must be sized correctly for motor full load amps and paired with dedicated motor-running overcurrent protection devices.
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