Specifications

Product Type

Electronic Time Relay

Brand

ABB

Series

CT-S

Rated Control Supply Voltage (Us) 24 to 240 V AC/DC	Rated Insulation Voltage (Ui) Input/output: 500 V; output 1/output 2: 300 V	Rated Operational Voltage (Ue) 250 V
Rated Operational Current AC-15 (Ie) 3:00 AM	Timing Range 0.05 s to 10 min	Rated Frequency 50/60 Hz; DC
Terminal Type Screw terminals	Rated Operational Current AC-12 (Ie) 4:00 AM	Rated Operational Current DC-12 (Ie) 4:00 AM
Rated Operational Current DC-13 (Ie) 1.5 A	Timer Relay Type True OFF-delay without auxiliary voltage	Output 2 c/o (SPDT) contacts
Short-Circuit Protective Devices n/c: 6 A fast-acting fuse; n/o: 10 A fast-acting fuse

Conductor Cross Section Flexible

1 × 0.5 to 2.5 mm²; 2 × 0.5 to 1.5 mm²

Conductor Cross Section Solid Core

1 × 0.5 to 4 mm²; 2 × 0.5 to 2.5 mm²

Depth 103.7 mm	Height 85.6 mm	Weight 0.124 kg
Width 22.5 mm

Storage Temperature

-40 to +85 °C

Operating Temperature

-25 to +60 °C

IP Rating

Housing: IP50; terminals: IP20

Standards and Approvals

EN 61812-1:2011; EN IEC 63000:2018

ABB CT-ARS.21S Time Relay 2CO SPDT Contact 24-240VAC/DC 24-48VDC 4A Screw Terminal