ABB ESB43030L Molded Case Circuit Breaker
- 30A
- 3 Pole
- Unit Mount
ABB
ESB43030L
Molded Case Circuit Breaker
Brand
ABB
SKU
ESB43030L
Quantity
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ABB ESB43030L - 30A 3 Pole Molded Case Circuit Breaker
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Description
Part of the ESB series, this 30-amp, three-pole molded case circuit breaker provides essential long-time and instantaneous trip functions. It is specifically designed for industrial machinery and motor control applications requiring robust 480VAC performance. Mounting into standard unit enclosures, it serves as a verified substitute for Fuji Electric BW125JAGU-3P030 breakers.Specifications
| Brand | ABB |
|---|---|
| Series | ESB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 480VAC |
| Phase | 3 |
| AIC Rating | 18kA @ 480VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Fuji Electric Control Panels, Industrial Machinery, Unit Mount Enclosures |
| 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, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | UL |
| Temp Rating | 40C |
Product FAQs
5 answersHow are the conductors terminated on the ESB43030L?
The breaker comes equipped with standard lugs for direct wire connections on both the line and load sides. This configuration is designed for unit mount enclosures and industrial control panels.
What types of panels and equipment is the ESB43030L designed for?
This breaker is commonly used in Fuji Electric control panels, industrial machinery, and standalone unit mount enclosures that require a 30-amp, 3-phase protection device.
Is the ESB43030L suitable for systems with high available fault currents?
It is limited to systems with an available fault current of 18kA or less at 480VAC. Installations requiring a higher interrupting capacity will need a different breaker to meet safety codes.
Are the trip settings on the ESB43030L adjustable?
No. This breaker features a fixed thermal magnetic trip unit. Both the long-time overload protection and the instantaneous short circuit protection are factory set and cannot be modified by the user.
Why might this breaker be listed under ABB, GE, or Fuji Electric?
The ESB frame has been manufactured and cross-branded by ABB, General Electric, and Fuji Electric. A breaker with the ESB43030L catalog number will have the same form factor and electrical specifications regardless of which of these brands is printed on the label.
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