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Siemens ED21B050 Molded Case Circuit Breaker
- 50A
- 1 Pole
- Bolt-On
Siemens
ED21B050
Molded Case Circuit Breaker
Brand
Siemens
SKU
ED21B050
Quantity
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Siemens ED21B050 - 50A 1 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens ED21B050 - 50A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | ED21B050 |
| Series | ED2 |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 5kA @ 125VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
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Siemens ED21B050 - 50A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | ED21B050-R |
| Series | ED2 |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 5kA @ 125VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
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Description
Designed for heavy-duty power distribution, the Siemens ED21B050 provides 50 amps of reliable circuit protection. This single-pole molded case circuit breaker operates efficiently within 120VAC commercial and industrial environments. The bolt-on configuration allows for seamless integration into Siemens Sentron panelboards and switchboards. It accommodates 10-1/0 AWG wire sizes and includes load side lugs. This ED2 frame breaker delivers a 10kAIC capacity for industrial branch protection.Specifications
| Brand | Siemens |
|---|---|
| Part Number | ED21B050 |
| Series | ED2 |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC, 5kA @ 125VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens ED21B050 circuit breaker?
The ED21B050 is designed for use in Siemens Sentron panelboards and SB switchboards that accept ED frame bolt-on breakers.
Can the Siemens ED21B050 replace an older ITE breaker with the same catalog number?
Yes, the Siemens ED21B050 is a direct form, fit, and functional replacement for legacy ITE ED21B050 breakers. Siemens and ITE share the same ED frame architecture.
What wire sizes are accepted by the lugs on the ED21B050?
The load side lugs on this breaker accept 10 AWG to 1/0 AWG copper or aluminum conductors.
What type of trip unit is equipped on the ED21B050?
This breaker features a thermal magnetic trip unit with fixed long time and instantaneous (LI) trip functions for reliable overload and short circuit protection.
Is the ED21B050 rated for DC applications?
Yes, in addition to its 120VAC rating, this breaker is rated for 125VDC applications with an interrupting capacity of 5kAIC.
How does the ED21B050 mount into the panelboard?
This is a bolt-on circuit breaker, meaning it fastens directly to the panelboard bus using screws. This provides a secure connection suitable for commercial and industrial environments.
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