ETR2/ETR4 Timers
The timing relays DIL ET have been matched to the construction design of the contactors DIL E; the ETR 4 variant has been optimised for the measurement and monitoring relay as well as the safety relay; the timing relays ETR 2 are optimised for use in service distribution boards (space unit 17.5 mm). Thus, the space in the control panel can be optimally used and the system is provided with a common design appearance. The timing relays feature 12 different functions.
Timing relay ETR and DIL ET
Both relays feature a large timer range: Whether it is for short signal extensions or extremely long processes: Thanks to the relays of type ETR 2, ETR 4 and DIL ET multiple time ranges from 0.05 seconds to 100 hours can be set accurately. A remote potentiometer can be connected to connection Z1/Z2 on the ETR 4-70/DILET70. Using it the time can be externally set. If timing relays are installed in the enclosure or in control panels, the time setting can be undertaken when the door is closed.
Electronic timing relay ETR 4 features
The timing relay ETR 4 features a photo-electronic input. The opto-isolated input actuation of the ETR 4 timing relay from any point in the circuit. This saves one actuating contact and the additional signal wiring. It is possible to actuate the signal input even via voltages other than the control voltage. For example, the ETR4 may be supplied at 230 V 50 Hz, while signal input actuation is via 24 V DC. The red LEDs signal the timing relay switching states. The green Power LED lights to indicate a voltage and flashes when the time is running.
Both relays feature a large timer range: Whether it is for short signal extensions or extremely long processes: Thanks to the relays of type ETR 2, ETR 4 and DIL ET multiple time ranges from 0.05 seconds to 100 hours can be set accurately. A remote potentiometer can be connected to connection Z1/Z2 on the ETR 4-70/DILET70. Using it the time can be externally set. If timing relays are installed in the enclosure or in control panels, the time setting can be undertaken when the door is closed.
Electronic timing relay ETR 4 features
The timing relay ETR 4 features a photo-electronic input. The opto-isolated input actuation of the ETR 4 timing relay from any point in the circuit. This saves one actuating contact and the additional signal wiring. It is possible to actuate the signal input even via voltages other than the control voltage. For example, the ETR4 may be supplied at 230 V 50 Hz, while signal input actuation is via 24 V DC. The red LEDs signal the timing relay switching states. The green Power LED lights to indicate a voltage and flashes when the time is running.
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