ABB 1SVR730030R3300 CT-MXS.22S Multifunction Timer Relay 2CO 24-48VDC 24-240VAC 22.5mm DIN Rail

The ABB CT-MXS.22S (SKU: 1SVR730030R3300) is a multifunction timer relay from the CT-S series, offering 2 changeover contacts and a wide supply voltage range of 24–48V DC / 24–240V AC, making it ideal for diverse industrial automation and control panel applications. The CT-MXS.22S features a compact 22.5mm DIN rail profile, simplifying panel space management while delivering reliable, programmable timing functions. Weighing just 142g, this ABB timer relay is built for demanding environments and carries a comprehensive set of international certifications.

Technical Specifications

Certifications & Standards

• cULus (UL 508): Listed to UL 508 for industrial control equipment, recognised in USA and Canada
• CAN/CSA C22.2 No.14: Canadian Standards Association approval for industrial control equipment
• CSA C22.2 / CSA: Canadian Standards Association certified
• IEC/EN 61812-1: Compliant with international standard for time relays for industrial and residential use
• EN 61812: European harmonised standard for time relays
• IEC/EN 63000: Technical documentation for assessment of electrical and electronic products with respect to RoHS
• IEC 60715: DIN rail mounting dimensions standard compliance
• CE: Conforms to European Union directives for the European Economic Area
• UKCA: UK Conformity Assessed marking for the Great Britain market
• CCC: China Compulsory Certification for 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

• Industrial machine control and automation sequences requiring programmable timing functions
• HVAC and building management systems requiring star-delta starting or pump control delays
• Control panels requiring space-saving 22.5mm DIN rail timer solutions
• Process automation where dual changeover output contacts are needed for simultaneous circuit switching
• Applications spanning wide voltage environments (24–240V AC / 24–48V DC) without relay substitution

Frequently Asked Questions

• What does multifunction mean for the CT-MXS.22S? The CT-MXS.22S supports multiple timing modes (functions) selectable via front-panel controls, replacing the need for several single-function relays in a panel.
• Is the CT-MXS.22S compatible with both AC and DC supply? Yes — the CT-MXS.22S accepts 24–48V DC and 24–240V AC, making it highly versatile across control circuit standards.
• What DIN rail size does the CT-MXS.22S use? The relay mounts on standard 35mm DIN rail per IEC 60715 and occupies 22.5mm of rail width.
• How many output contacts does the CT-MXS.22S provide? It provides 2 changeover (C/O) contacts, allowing both normally-open and normally-closed switching from each output.