Description

The FF-SRT Time Delay Module provides a time delay before the safety contacts are opened. If a two-channel version is used, the output contacts of the two time delay circuits are connected in series. When the displayed time has elapsed, the safety contacts within the module open safely, even if one of the other contacts is welded.NOTE: A higher safety category may be obtained (depends on the machine control interface).

Features

• Complies with the Machinery Directive 98/37/EC, IEC 255, VDE 0435, and UL 508
• Provides a delay after module is de-energized
• Available with one or two time delay circuits (channels)
• Available with fixed or selectable delay up to 30 seconds
• LED status indication
• Mechanical life up to ten million operations
• Electrical life up to 300,000 operations
• Switching current up to 8 A
• Voltage drop protection

Typical Applications

• Time delay required before disconnection of safety interface circuit