Product Description
Description: Delay on Make • Time Delay Relay • Input Voltage : 19-288 VAC/VDC • Timing Range: 1 sec - 8 min • Mounting : Base Mount • Contact Configuration: NO • Output Current: 1 Amp
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Operating Voltage | 19-288 VAC/DC |
| Timing | Adjustable |
| Timing Range | 1-480 sec |
| Frequency | 50 / 60 Hz. |
| Output | 10 milliamperes to 1 ampere inductive Inrush to 25 amperes for 8 milliseconds. |
| Timing Mode | Delay On Make. |
| Timing Adjustment | Potentiometer located between terminals. |
| Timing Repeatability | +/- 1% at stabilized operating voltage and temperature. |
| Transient Protection | 8 Joules. |
| Operating Temperature | -20 deg C to 85 deg C. |
| Timing Tolerance | Maximum range of 480 seconds to within 15%. |
| Timing Variation | ±2% at any combination of operating voltage and temperature. |
| Repeatability Of Timing Period | ±1% nominal. |
| Recycle Time | 50 milliseconds. |
| Output Rating | 10mA to 1A inductive with inrush current to 25A for 8 milliseconds. |
| Output Voltage Drop in ON State | 4 volts maximum. |
| Leakage Current in OFF State | 0.6MA @24V, 1.8MA @120V, 11.4MA @240V. |
| Transient Protection: | Maximum transient voltage protection is 6000 volts as delivered through a source resistance of 30 ohms with a maximum duration of 8.3 milliseconds. |
| Operating Temperature | -20°C to +85°C |
| Humidity | 95% condensing |
| Terminations | Two (2) .25 Faston type |
| Series Features |
| Model No. 438UP Universal Potentiometer Time Capsule® |
| Series Description: The model 438UP (Universal Potentiometer Adjustable Time Capsule) is an all Solid State timer providing Delay on Make control to any load operating from 19 to 288V AC or DC. When power is applied, the 438UP remains in the off state. When the preset time period has elapsed, the 438UP switches on allowing the load to energize. The load remains energized as long as power is applied. Power must be removed for at least 50 milliseconds to reset timer. |