Description

The Trumeter 7957 is a multi-function digital time relay, offering 18 operating modes which can be easily configured on the 3 digit LCD
display. The 7957 features a wide timing range of 0.1s – 999Hr to suit all applications with a clear indication of the changeover relay
status via the front panel LCD. The 7957 comes in a compact 17.5 mm DIN-Rail mountable case and can accept a wide range of operating voltages for most installations. In addition, the 7957 is tamper-proof due to the key lock feature, meaning 100% reliable operation.

Features:

• Compact 17.5mm DIN rail mountable
• 3 digit LCD for easy programming
• Tamper proof with key lock feature
• Wide timing range: 0.1s – 999Hr
• Multi-function: 18 non-signal and signal based functions
• Multi-voltage: 24 – 240VAC/VDC
• Option to select up/down counting
• CE, UL & cUL approved

Operating Modes:

• ON Delay
• Cyclic OFF/ON
• Cyclic ON/OFF
• Impulse on Energizing
• Accumulative Delay on Signal
• Accumulative Delay on Inverted Signal
• Accumulative Impulse on Signal
• Signal ON Delay
• Inverted Signal ON Delay
• Signal OFF Delay
• Impulse ON/OFF
• Signal OFF/ON
• Leading Edge Impulse 1
• Leading Edge Impulse 2
• Trailing Edge Impulse 1
• Trailing Edge Impulse 2
• Delayed Impulse
• Inverted Signal ON Delay (Type 2)