SS7B481MDO

The Danaher SS7B481MDO timer and controller, part of the Timers and Controllers series, delivers precise event sequencing and time tracking in industrial automation applications. With a wide supply voltage of 90-240 VAC at 50/60 Hz, this device provides reliable power handling across global power standards. Its dual-line, 4-digit 7-segment LED display features 8 mm high characters for maximum visibility on crowded panels. The unit occupies a compact footprint of 48 mm x 48 mm x 85 mm, enabling seamless integration into standard control enclosures. Built for rugged environments, it offers IP65 panel protection to fend off dust and water ingress during washdowns or dusty operations.

The SS7B481MDO’s technical foundation centers on stable and repeatable timing performance. A repeat accuracy of ±0.01% ensures each cycle adheres strictly to programmed intervals without drift. Critical user settings are safeguarded by its nonvolatile memory type, protecting configurations during power interruptions. Inputs register activation within an input activation time of 21 ms, while the input impedance of 10 kΩ reduces noise susceptibility and conserves upstream supply resources. Its power draw remains minimal at 10 VA max @ 240 VAC, making it efficient even when deployed in banks of controllers.

Operational resilience stems from its robust output stage and environmental tolerances. The controller’s NPN open collector, opto isolated output type supports up to 30 mA max current switching at 30 VDC max voltage, facilitating safe interfacing with PLCs and relay coils. The enclosure sustains ambient conditions from 5% to 95% RH non-condensing and operates reliably between 0°C to 55°C. For storage, the device endures temperatures from -40°C to 90°C without degradation. These operational limits ensure the SS7B481MDO maintains consistent performance across variable humidity and temperature extremes common in manufacturing and process automation.

Designed for straightforward system integration, the SS7B481MDO leverages its standardized 48 x 48 mm panel cutout to plug directly into existing control boards. The combination of a dual-line display and nonvolatile memory simplifies commissioning by enabling instant status feedback and eliminating repeated programming after power loss. Target applications include industrial automation stations, batch process timers, assembly line event controllers, and OEM machinery where compact size and high reliability are paramount. By combining essential timing functions, environmental robustness, and straightforward interfacing, the SS7B481MDO supports precise, dependable control across a wide range of industrial automation scenarios.