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The Schurter Inc. 4420.0605 is a thermal-magnetic circuit breaker designed for equipment protection. This 2-pole device features a rated current of 4A and supports AC voltage ratings of up to 480V (UL/CSA) or 240V (IEC) and a DC voltage rating of 65V.
It is built for high short circuit performance with an Icn of 5 kA at 420V AC / 65V DC (IEC) and 5 kA at 480V AC (UL 508). The breaker offers a conditional short circuit capacity of 10 kA at 480V AC with specific fuses (UL 1077).
Designed for industrial appliances, the 4420.0605 features DIN rail mounting for easy installation. It operates within an ambient temperature range of -10°C to 55°C and has a lifetime of 6000 switching cycles at 1x Ir. The degree of protection from the front side is IP40.
This circuit breaker is manually actuated with a lever and has a positively trip-free mechanism. It supports wire cross-sections from 1.5 to 25 mm² (16 to 4 AWG). Approvals include CSA and UL standards.
It has multiple rated voltages: 240 VAC (IEC), 277 VAC (UL/CSA), and 65 VDC.
The nominal rated current is 4A. The datasheet also specifies an adjustable range of 0.5 to 52 A AC and a 65 A AC/DC rating.
The ambient operating temperature range is -10°C to 55°C.
Short circuit ratings: 5 kA at 420 VAC / 65 VDC (IEC 60934), 10 kA at 480 VAC with fuse (UL 1077), 5 kA at 480 VAC without fuse (UL 1077 and UL 508), and 2 kA at 65 VDC (UL 1077).
It has 2 poles.
Approvals include CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, and UL508.
It is designed for DIN rail mounting.