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AIRPAX / SENSATA AP121RC52252 Magnetic Circuit Protector

The Airpax AP series magnetic circuit protectors combine power switching and accurate, reliable circuit protection with inverse time delays and trip-free features. Unlike thermal protectors, the AP maintains a consistent trip current regardless of temperature. Available in DC, 50/60Hz, or 400Hz versions with various delays, they cater to specific application requirements. The 'trip-free' action ensures the circuit won't remain closed during an overload, even with the handle in the ON position. Applications include communication, navigation, aircraft instrumentation, radar, and power supplies. The UP series offers UL and CSA certification and an optional FM approval for petrochemical applications. AP-MIL protectors adhere to MIL-PRF-39019 standards, ensuring a rigorous production and testing program.

Authorized Distributors
Source:DigiKey
Part No:AP12-1RC-52-252
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1122.02
Buy/RFQ:
Part No:AP12-1RC-52-252
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1122.02
Buy/RFQ:
Part No:AP12-1RC-52-252
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1407.61
Buy/RFQ:
Part No:AP12-1RC-52-252
Stock:3
Inv Date:06-09-2026
Price: Unit price: $864.38
Buy/RFQ:
Part No:AP12-1RC-52-252
Stock:3
Inv Date:06-09-2026
Price: Unit price: $864.38
Buy/RFQ:

AIRPAX / SENSATA AP121RC52252 Magnetic Circuit Protector Specifications:

  • Poles: 72
  • Configurations: 75
  • Operating Characteristics: 76
  • Delay Curves: 77
  • Specifications: 78
  • Decision Tables: 79
  • Salt Spray Testing: Per MIL-STD-202, Method 101, Test Condition B
  • Typical Applications: Communication, navigation, aircraft instrumentation, radar, power supplies
  • Panel Mounting Detail_Maximum Panel Thickness: 0.156 [3.96]
  • Panel Mounting Detail_Hole Depth: 0.075 [1.91] min.
  • Mounting Detail_Threaded Inserts: Exceed seated height of bushing by 0.005-0.015 [0.13-0.38]
  • Angles: ±5° unless noted
  • Dimensions in brackets: Millimeters
  • AP12_Description: Two independent series trip protectors, each with its own rating and delay characteristics.
  • Three Pole AP112_Description: Three circuits simultaneously protected; all poles trip with an overload on any circuit.

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA AP121RC52252?

You can click on the BUY or RFQ button to purchase AP121RC52252 from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part AP121RC52252?

You can download the AP121RC52252 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of AP121RC52252?

AIRPAX / SENSATA

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