Product Specifications:
| Item | Bolt On Circuit Breaker |
| Aic Rating | 65 kAIC @ 480V |
| Ambient Air Temp. For Operation | 104°F |
| Amps | 50A |
| Amps Rating | 50A |
| Awg Gauge | 12 AWG to 2/0 AWG, 14 AWG to 2/0 AWG |
| Breaking Capacity | 65 kA 240V AC, 65 kA 277V AC, 100 kA 120V AC, 65 kA 120/240V AC |
| Breaking Capacity Code | J |
| Circuit Breaker Application | HID Rated, HACR Rated |
| Depth | 4.05" |
| Electrical Connection | Lugs Aluminium |
| Frame Type | EJB |
| Height | 5.66" |
| Holding Current | 630A |
| Local Signalling | Trip Indicator |
| Maximum Operating Voltage | 277V AC |
| Module Type | E Frame |
| Mounting Mode | Bolt On |
| No. Of Poles | 1 |
| No. Of Spaces | 1 |
| Number Of Poles | 1 |
| Protect Type | Overload, Short Circuit |
| Returnability | Yes |
| Tightening Torque | 34.5 lbf.in. @ 0.004 sq. in. to 0.009 sq. in. @ 14 AWG to 10 AWG, 49.6 lbf.in. @ 0.02 sq. in. to 0.1 sq. in. @ 8 AWG to 2/0 AWG |
| Trip Unit Rating | 1800A |
| Trip Unit Technology | Thermal-Magnetic |
| Voltage | 277V |
| Voltage Type | AC |
| Width | 0.98" |
Shipping Info:
| Ship weight (kg) | 0.59 |
| Ship height (cm) | 4.57 |
| Ship length (cm) | 25.91 |
| Ship width (cm) | 15.49 |
| Country of Origin | MX |
Product Details:
- Square D EJB14050 is a bolt-on molded case circuit breaker designed for use with switchboards, motor control centres and panelboards to protect them from overloads or short-circuits.
- It features a thermal-magnetic trip unit for providing both long-time and instantaneous trip functions, and an extra-high interrupting capacity of 65 kA at 480 V.
Product Variants
| Product | Model | Number Of Poles | Amps | Voltage | Trip Unit Rating | Frame Type | Voltage Type | Depth | Aic Rating | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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EJB14015 | 1 | 15A | 277V | 875A | EJB | AC | 4.05" | 65 kAIC @ 480V | €218.86 | |
![]() |
EJB14020 | 1 | 20A | 277V | 875A | EJB | AC | 4.05" | 65 kAIC @ 480V | €218.86 | |
![]() |
EJB14025 | 1 | 25A | 277V | 875A | EJB | AC | 4.05" | 65 kAIC @ 480V | - | RFQ
|
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EJB14030 | 1 | 30A | 277V | 875A | EJB | AC | 4.05" | 65 kAIC @ 480V | €218.86 | |
![]() |
EJB14035 | 1 | 35A | 277V | 1800A | EJB | AC | 4.05" | 65 kAIC @ 480V | €712.80 | |
![]() |
EJB14060 | 1 | 60A | 277V | 1800A | EJB | AC | 4.05" | 65 kAIC @ 480V | €242.35 | |
![]() |
EJB14070 | 1 | 70A | 277V | 1800A | EJB | AC | 4.05" | 65 kAIC @ 480V | €943.80 |
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Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
SQUARE D EJB14050 Bolt-On Circuit Breaker, EJB, 50 A, 277VAC, 1P, 65kAIC@480V


