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The Siemens 3RV29221CB0 is an undervoltage release designed as an accessory for the 3RV2 series of circuit breakers. This component is suitable for motor circuit breaker applications and features a 24V AC control supply voltage with a frequency of 50 Hz.
Key electrical specifications include an insulation voltage rated value of 690V. The auxiliary circuit is equipped with 2 NO leading contacts. The undervoltage release is designed for fuse protection and offers touch protection on the front according to IEC 60529, rated IP20.
Mechanically, the 3RV29221CB0 features a snap-on mounting method for easy installation. Its dimensions are 18.5 mm in width, 90 mm in height, and 68 mm in depth. The operating temperature range is -20°C to +60°C, with a storage temperature range of -50°C to +80°C. The degree of pollution is rated at 3.
This undervoltage release is compatible with circuit breaker sizes S00, S0, S2, and S3. It carries certifications including CE, UL, and CSA.
24VAC at 50Hz.
18.5mm x 90mm x 68mm, snap-on mounting.
-20°C to 60°C.
2 normally open (NO) contacts.
IP20 on the front.
Fuse-based.
S00, S0, S2, S3.