The ABB CT-ERS.21P is a high-precision electronic on-delay time relay from the ABB CT-S series, designed for universal industrial time control applications. Featuring tool-free push-in wiring and wide voltage compatibility, this modular timer delivers stable and reliable delay control for automation systems.

Key Features

· Standard on-delay timing function for general industrial control

· Universal 24-240V AC/DC wide voltage power supply

· Ultra-wide adjustable timing range: 0.05 seconds to 300 hours

· 2 C/O SPDT output contacts with stable load capacity

· Tool-free push-in terminal design for fast and safe wiring

· Compact 22.5mm narrow body, space-saving DIN rail mounting

· Dual LED indicators for real-time power and working status

· Industrial flame-retardant housing, anti-interference and durable

Technical Specifications

· Part Number: CT-ERS.21P

· Series: ABB CT-S Time Relay Series

· Function: On-Delay Timing

· Supply Voltage: 24–240V AC/DC

· Timing Range: 0.05s – 300h

· Output Contact: 2 C/O Contacts

· Connection Type: Push-in Terminals

· Mounting Type: DIN Rail Mount

· Application: Industrial Automation Timing Control

Applications

· Industrial cabinet automatic time delay control

· Motor sequential start and protection control

· Mechanical equipment timing operation control

· Factory automation system transformation and maintenance

· Electrical engineering and panel building projects

Our Supply We provide 100% original brand new ABB CT-ERS.21P time relays. All products are strictly tested with complete certifications. We support global fast delivery and professional after-sales technical support for your replacement, maintenance and automation upgrade projects.

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