WAGO’s Triggered Timer Relay supports E-stop circuitry within space-restricted panels. Upon E-Stop activation, the falling edge of a trigger signal initiates the 859-477’s off-delay timer for sequential shutdown. The device’s four highly adjustable time delay ranges enable a PLC to log the stopped position of all components. This helps provide smooth and efficient restart of intricate machinery, such as that found in material handling and packaging.
Design of this triggered timer relay focused on usability by developing the 859-477 with a high-resolution, top-mount potentiometer. The 12-turn potentiometer augments two side-mount DIP switches that select time ranges of: 0.5s–2s, 1.0s–12.0s, 5.0s–90s and 50s–12 minutes. The unique top-mount potentiometer enables users to fine-tune time delay settings without removing 859-477 from DIN-rail.
The Triggered Timer Relay utilizes WAGO’s 6mm-wide relay housing, making it very compact. A top-mount LED indicates switching status of the electromechanical single-pole, single-throw Normally Open relay output. 859-477 features an operating temperature range of 0°C to +40°C and 6 A max contacts. Vibration-resistant, maintenance-free CAGE CLAMP® Spring Pressure Technology ensures long-term signal integrity.
WAGO Kontakttechnik GmbH & Co. KG
Tel: +49 571/887-0
Fax: +49 571/887-169
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