ABB 1SVR500211R0100 CT-SDD.22 Star-Delta 2NO 24-48VDC 24-240VAC Timer Relay

The ABB CT-SDD.22 (SKU: 1SVR500211R0100) is a star-delta timer relay from the CT-D series, designed for reliable motor soft-start control in industrial automation and control panel applications. Featuring 2 normally open (2NO) output contacts and a wide supply voltage range of 24–48V DC and 24–240V AC, the CT-SDD.22 delivers versatile, space-efficient timing performance in a compact 17.5 mm wide DIN rail housing.

Technical Specifications

Certifications & Standards

• CE: Complies with European CE marking requirements for electrical equipment
• UKCA: Meets UK Conformity Assessed marking requirements post-Brexit
• cULus: Certified by UL for both the US and Canadian markets under UL508
• UL 508: Listed to UL Standard for Industrial Control Equipment
• CAN/CSA C22.2 No. 14: Canadian Standards Association certification for industrial control equipment
• CSA: CSA Group certified for industrial applications
• IEC/EN 61812-1: Compliant with the international standard for time relays for industrial and residential use
• IEC/EN 63000: Compliant with the technical documentation standard for RoHS assessment
• CCC: China Compulsory Certification for sale in the Chinese market
• REACH: Compliant with EU REACH regulation on chemical substances
• RoHS: Restriction of Hazardous Substances compliant — free from restricted materials

Applications & Use Cases

• Star-delta motor starting sequences in industrial machinery and pump systems
• Control panel automation where wide-range supply voltage flexibility is required
• OEM machine builders needing compact, DIN rail-mounted timing solutions
• Manufacturing and process automation lines requiring reliable soft-start motor control
• HVAC and building automation systems with three-phase motor loads