Siemens 3G-OTH-22579 — Technical Specifications

Name: Siemens 3G-OTH-22579 SIEMENS Molded Case Circuit Breaker: 40 A Amps, 25kA at 277V AC, Fixed, Load Side Lug, Any, HED4 (MPN HED41B040). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: HED4; Max. AIR Rating: 25kA at 277V AC.
Brand: Siemens

The SIEMENS Molded Case Circuit Breaker (SKU 3CMN3) is an ED-Frame, HED4 series breaker rated for 40 A amps with a maximum AIR rating of 25kA at 277V AC. It features a fixed instantaneous trip, load-side lug terminal connection, and supports any phase connection. This breaker is designed for industrial circuit protection applications.

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Technical Specifications

Parameter	Value
Type	25kA at 277V AC, Fixed, Load Side Lug, Any, HED4
Series	HED4
Max. AIR Rating	25kA at 277V AC
Phase Connection	Any
Instantaneous Trip	Fixed
Terminal Connection	Load Side Lug
Manufacturer Part Number	HED41B040