Hydraulic magnetic circuit protector (optional switch only configuration)
Hermetic seal, ideal for Class 1 Div 2 Groups A/B/C/D, 3 poles max.

Hydraulic magnetic circuit protector (optional switch only configuration)
Hermetic seal, ideal for Class 1 Div 2 Groups A/B/C/D, 3 poles max.
A.I.C. :
500 amps at 50Vdc & 120Vac, 300amps at 240Vac (AP, AP-MIL only)
1000 amps at 50Vdc & 240Vac (UP only)
• MIL-PRF-M39019
• UL recognized
(UP type only)
• FM approved
(UP type only)
As the exclusive representative of AIRPAX in Israel through Amironic, we are proud to present the AP/UP series of magnetic circuit protectors. This product line, developed in compliance with MIL-PRF-39019 standards, offers state-of-the-art protection solutions for demanding applications across military, aerospace, communication, and industrial domains. Here is an in-depth exploration of these circuit protectors—their features, configurations, and key applications.
The AP/UP series by AIRPAX combines precise circuit protection with power switching capabilities. Unlike thermal circuit protectors, which can exhibit variations in trip current under different ambient temperatures, these hydraulic magnetic circuit protectors maintain consistent performance across a wide temperature range (-40°C to +100°C). The series features a trip-free mechanism that ensures overload protection even if the handle is forcibly held in the ON position.
The AP/UP circuit protectors are available in DC, 50/60 Hz, and 400 Hz configurations, with multiple delay curves to suit specific application requirements. In addition, the UP series is UL recognized and CSA certified, making it suitable for safety-critical environments.
The AP-MIL series, part of the AP/UP product line, is manufactured to meet the rigorous standards of MIL-PRF-39019. This military specification ensures the protectors meet stringent performance, reliability, and environmental criteria. The AP-MIL protectors are subjected to extensive testing for vibration, shock resistance, and environmental sealing, making them highly reliable for mission-critical applications. The compliance with MIL-PRF-39019 highlights AIRPAX’s commitment to delivering products suitable for military and aerospace use.
At Amironic, we provide full support for sourcing M39019 part numbers, ensuring seamless integration with your military-grade systems. Our expertise allows us to guide customers in selecting the precise configuration required for their applications.
The AP/UP series supports multiple configurations to meet diverse application needs:
The protectors are available in single-, two-, and three-pole configurations, with custom combinations to address specific circuit requirements.
For defense and aerospace applications, the AP-MIL series adheres to MIL-PRF-39019 standards, maintaining Qualified Products Listing (QPL) compliance. These units are subjected to stringent production and testing protocols to ensure consistent quality and performance.
The AP-MIL protectors are offered with:
The AP/UP series finds widespread application in:
The AP/UP series offers extensive customization options, including variations in delay curves, current ratings, and auxiliary configurations. Each unit is coded for precise identification, ensuring compatibility with specific application requirements. For detailed guidance on part numbers or unique configurations, please contact Amironic, the official Israeli representative of AIRPAX.
We specialize in providing M39019 part numbers and configurations, ensuring compliance with military standards and the highest levels of performance.
As AIRPAX’s trusted partner in Israel, Amironic provides unparalleled technical support, ensuring seamless integration of the AP/UP series into your systems. With a deep understanding of the product line and its applications, we are committed to delivering reliable solutions tailored to your needs.
Contact Amironic today to learn more about the AP/UP series or to discuss your project requirements. Together, we can ensure optimal circuit protection for your critical applications.