BTicino M4 630N - thermal-magnetic Mccb 4P - In=320A - Icu=50kA — T744N320

Technical specifications

Manufacturer model: T744N320 Catalogue reference: BT-T744N320 EAN: 8005543548752 Range: MEGATIKER Manufacturer category: Low-voltage protection and power distribution/Megatiker moulded case circuit breakers/Thermal magnetic circuit breakers/M4 630 thermal magnetic Type of electrical connection of main circuit: Screw connection Rated short-circuit breaking capacity Icu at 400 V, 50 Hz: 50kA Device construction: Built-in device fixed built-in technique Rated permanent current Iu: 320A Number of poles: 4 Degree of protection (IP): IP30 Confirm the required regional standard and system compatibility when selecting this model. Product reference: https://www.bticino.com/products/bt-t744n320 Source: https://www.bticino.com/products/low-voltage-protection-and-power-distribution/megatiker-moulded-case-circuit-breakers?limit=48&page=23&sort=a-to-z Checked: 2026-10-11