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GT-1420 4-20 mA Analog Loop Surge Protection Module
Overview
The GT-1420 provides in-line surge protection for the 4-20 mA 24 VDC analog inputs of chart recorders, meters, PLC's, etcetera.
The analog input signal is protected with a combination of series resistance, a 90 V gas tube, series inductance, and 31 V metal oxide varistor.
Specifications
| Mechanical | |
|---|---|
| Size: | 1-3/4" x 1-5/32" PC board |
| Mounting: | Velcro® strip |
| Inputs | One |
| Gas tube: | DC Spark over voltage 90 VDC |
| Inductor: | 680 uH, 12.25 Ohm |
| Terminals: | 200 V barrier |
| Resistance: | 10 Ohm, 1/2 W |
| Metal Oxide Varistor (MOV) | |
| Maximum input working voltage: | 31 VDC |
| Maximum clamping voltage: | 79 VDC @ 5 A IP |
| Peak current: | 250 A (8/20 uS) |
| Transient protection | Meets or exceeds IEEE 472.1974 surge withstand capacity (SWC) tests (ANSI C27.30a-1974) |
Consult the factory for optional voltages.
