Description
The Square D ARP090 is a replacement rating plug designed for use with Square D ARP series Micrologic-equipped circuit breakers. Supporting a 90% continuous current rating up to 4000 amps at 600 VAC, this plug allows precise adjustment of breaker current settings for high-capacity power distribution systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breaker Accessories |
| Part Number |
ARP090 |
| Subcategory |
Rating Plugs |
| Series |
ARP |
| Type |
Circuit Breaker Rating Plug |
| Compatible Trip Unit |
Micrologic |
| Continuous Rating |
90% |
| Amperage Range |
100–4000 A |
| Maximum Current Setting |
4000 A |
| Voltage Rating |
600 VAC |
| Application |
Power Distribution / Switchgear |
| Installation Type |
Plug-In |
| Weight |
Approx. 0.5 lb |
Information About ARP090
The ARP090 is part of Square D’s ARP series of interchangeable rating plugs developed for Micrologic trip units. It is engineered to integrate directly with compatible Square D molded case and power circuit breakers to define the breaker’s long-time current rating. This rating plug supports a wide amperage adjustment range and is intended for high-current industrial and commercial electrical systems. Commonly used in switchgear and large distribution equipment, it enables accurate system coordination and protection configuration.
Key Features:
- ARP Series Compatibility: Designed specifically for Square D ARP series Micrologic trip units.
- 90% Continuous Rating: Supports continuous operation at 90% of the selected current setting.
- Up to 4000 Amp Capacity: Suitable for high-current power distribution applications.
- 600 VAC Rating: Compatible with high-voltage AC electrical systems.
- Interchangeable Design: Allows field adjustment of breaker current ratings without replacing the breaker.
- Precision Current Configuration: Ensures accurate long-time protection settings.
- OEM Square D Component: Maintains proper fit and electrical performance with supported breakers.
The ARP090 delivers the reliability and precision required for configuring high-capacity circuit breaker protection in industrial power distribution systems.
