S3 Frame Contactor with Wide-Range AC/DC Coil
The 3RT2344-1NP30 is a SIRIUS contactor in the S3 frame size, designed for switching motor loads in control panels and industrial machinery. Its coil accepts 175–280 V AC or DC directly, eliminating the need for a separate coil voltage converter on mixed-supply panels. Mounting is flexible: screw-fixed or snap-on onto 35 mm DIN rail per DIN EN 60715, with the contactor body rotatable ±180° on a vertical surface and tiltable ±22.5° forward or backward — useful when panel layout forces an unconventional orientation.
Wire Termination and Auxiliary Contact Capacity
Main circuit terminals accept stranded wire from 6 mm² up to 70 mm², covering a wide range of motor feed sizes without needing lug adapters. The auxiliary circuit uses screw terminals sized for 2x (0.5–1.5 mm²) solid or 2x (0.75–2.5 mm²) stranded — typical for control wiring in a panel. The contactor ships with an auxiliary switch block (2-pole) already attached, saving a separate order and DIN slot. Its auxiliary contacts carry rated values from 10 A at 24 V down to 0.3 A at 220 V — check the specific switching voltage against your PLC input or relay load.
Lifecycle and Sourcing Reality
Operating temperature range is -25 to +60 °C, with storage from -55 to +80 °C, covering most indoor industrial environments without derating concerns. Mechanical life is rated at 10 million operations typical, and main contact electrical life ranges from 10,000 to 2,000,000 operations depending on switching current and voltage.