ABB PL703U-K30 Miniature Circuit Breaker
- 30A
- 3 Pole
- Plug-On
Quantity
ABB PL703U-K30 - 30A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for commercial environments, the ABB PL703U-K30 is a 3-pole, 30A miniature circuit breaker from the ProLine series. It delivers reliable overcurrent protection for demanding electrical systems. This plug-on breaker mounts into ABB ProLine panelboards, featuring a non-energized screw for a secure, touch-safe connection. Rated for 10 kAIC at 240VAC, it utilizes a K-curve thermal-magnetic trip unit to handle high inrush currents. Note: This unit is replaced by the PLU703M-K30.Specifications
| Brand | ABB |
|---|---|
| Series | PL700 |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | ABB ProLine Panelboards |
| Wire Gauge | 18-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 18 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | K |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Signal Contact, Shunt Trip, Undervoltage Release, Padlock Attachment, Motor Operator |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | -25C to 55C |
| Construction Features | Current Limiting |
Product FAQs
5 answersWhat panelboards are compatible with the ABB PL703U-K30 circuit breaker?
This breaker is designed exclusively for use in ABB ProLine panelboards. It features a specialized plug-in design that fits the touch-safe architecture of the ProLine system.
What does the K in the PL703U-K30 catalog number indicate?
The K designates a K-curve trip characteristic. This thermal-magnetic curve is designed for inductive loads, allowing for higher inrush currents during system startup without nuisance tripping.
How does the PL703U-K30 connect to the panelboard bus?
It utilizes a separated connection system featuring a plug-in electrical connection to the busbar and a non-energized bolt-on screw for mechanical securement.
Does this breaker feature a touch-safe design?
Yes, when installed in an ABB ProLine panelboard, the breaker integrates into an IP20 touch-safe system that isolates the energized bus, enhancing personnel safety during maintenance.
Is the PL703U-K30 a current-limiting circuit breaker?
Yes, it is a UL 489 listed current-limiting miniature circuit breaker, designed to quickly mitigate short-circuit faults within the ProLine panelboard system.
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