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Siemens ED22B050L Molded Case Circuit Breaker
- 50A
- 2 Pole
- Unit Mount
Siemens
ED22B050L
Molded Case Circuit Breaker
Brand
Siemens
SKU
ED22B050L
Quantity
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Siemens ED22B050L - 50A 2 Pole Molded Case Circuit Breaker
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Description
Designed for standalone applications, the Siemens ED22B050L is a 50A, 2-pole molded case circuit breaker. It provides reliable 240VAC overcurrent protection for industrial systems. Unlike bolt-on models, this unit-mount breaker is intended for individual enclosures, switchboards, and motor control centers. It comes factory-equipped with both line and load side lugs to streamline wiring. This ED-frame breaker features a thermal-magnetic trip unit with a 10 kAIC rating at 240VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | ED22B050L |
| Series | ED2 |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 250VDC |
| Frame Type | ED |
|---|---|
| Terminal Type | Lugs |
| For Use With | Individual Enclosures, Switchboards, Motor Control Centers |
| 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 | Line and Load Side Lugs |
| 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 |
Product FAQs
7 answersWhat enclosures are compatible with the ED22B050L circuit breaker?
This ED-frame breaker is compatible with Siemens E2N1S (NEMA 1 surface mount), E2N1F (NEMA 1 flush mount), and E2N3R (NEMA 3R outdoor) individual enclosures.
Are the line and load lugs included with this breaker?
Yes, the ED22B050L comes factory-equipped with both line and load side lugs. The terminals accept 10 to 1/0 AWG copper or aluminum wire.
Can I field-install internal accessories on this ED-frame breaker?
Yes, Siemens ED-frame breakers support field-installable internal accessories, including shunt trips, auxiliary switches, alarm switches, and undervoltage releases. Note that accessory installation must be completed before the circuit breaker is mounted and connected.
How is the ED22B050L breaker mounted?
This is a unit-mount, feed-thru circuit breaker. It is designed to be fastened with mounting screws in individual enclosures, switchboards, or motor control centers, rather than plugging or bolting directly onto a panelboard bus.
Is the ED22B050L rated for reverse feed applications?
Yes, this thermal-magnetic breaker is reverse feed capable, meaning line power can be supplied to either the top or bottom terminals without affecting the trip calibration.
What is the recommended torque for the breaker mounting hardware?
When securing the breaker to a mounting surface, Siemens specifies torquing the mounting screws to 12 to 15 in-lbs. The torque requirements for the line and load wire connectors are printed directly on the breaker nameplate.
What routine maintenance is recommended for this circuit breaker?
Siemens recommends periodically inspecting the breaker by removing dust, soot, or moisture from the surface using a lint-free cloth or vacuum. Do not blow debris into the breaker housing. Always turn off and lock out power before inspecting.
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