ABB – CT‑ARS.11S (1SVR730120R3100) – True OFF‑Delay Timer, 24–240 VAC/DC, SPDT

The ABB CT‑ARS.11S (P/N 1SVR730120R3100) is a single-function electronic off‑delay timer from the CT‑S series. With true delay‑on‑break operation and a broad 24–240 VAC/DC control voltage range, it’s ideal for applications needing reliable delayed shutdown—no auxiliary power required.

Key Features & Specifications

• Model / P/N: CT‑ARS.11S (1SVR730120R3100)  

• Timing Mode: Off‑delay (delay starts after control voltage drops)

• Supply Voltage: 24–240 V AC/DC (±10 %)  

• Time Range: 0.05 s to 10 min across 7 selectable ranges via rotary switch  

• Adjustment: Fine potentiometer on the front for precise timing control  

• Outputs: 1 changeover (SPDT) relay contact – 4 A @ 250 VAC (resistive), 3 A inductive  

• Terminal Type: Screw clamp, double-chamber cage connection or push-in version  

• LED Indicator: Green ‘U’ LED shows supply/timing status  

• Housing: 22.5 × 85.6 × 103.7 mm, 106 g, DIN rail mounted, UL‑94 V‑0 plastic, IP50 front, IP20 terminals  

• Durability: Mechanical life: 30 million; Electrical life: 100,000 cycles  

• Certifications: UL 508, CSA C22.2, GL, GOST, CCC, CE, RoHS; EMC per IEC/EN 61000‑6‑1/‑6‑2