A1D1 (WB)

The EAPL A1D1 (WB) is a compact, high-accuracy On-Delay Timer designed for DC-operated control systems, ideal for precise sequencing and delay operations in industrial automation. With its 8–30 V DC operating range, wide timing adjustability, and robust dual relay output, it ensures reliable performance in demanding environments. Its compact form factor allows easy DIN-rail or screw mounting, while built-in features like HOLD/RESTART and tamper-proof programming enhance operational flexibility and safety.

Key Specifications

Function: On-Delay Timer – activates relay after preset delay.

Operating Voltage: 8 V DC to 30 V DC.

Time Range: Adjustable from 0.3 seconds to 30 minutes.

Output: Dual changeover (2 C/O) relay contacts.

Contact Rating: 5 A at 250 V AC or 30 V DC (resistive load).

Mounting: DIN-rail or screw mounting.

Indicators: LED indication for power, relay status, and timing.

Features: HOLD/RESTART function, Program Enable/Disable, Auto/Manual mode, protective terminal covers.

Enclosure Size: Approx. 22.5 mm (W) × 75 mm (H) × 102 mm (D).

Applications

AMF Panels – For generator auto-mains failure control sequences.

Motor Control Centers (MCCs) – Motor start/stop and interlocking.

Transformer Panels & RTCC – Timing in tap changer control operations.

Control & Relay Panels – Process automation and safety logic delays.

HT/LT Panels – Sequencing and load transfer delays.