The Ampac Three Input-Output Device is designed to interface to a variety of plant control equipment such as door contacts, sprinkler flow switches, gas valves, and fire fan control systems.
The Three Input-Output Device incorporates three (3) single-pole, voltage-free change over relay contacts, and three (3) monitored switch inputs. Each input can be used to supervise one or more normally open contacts connected to a single pair of cables with monitoring provided for both open and short circuit fault conditions. The Input circuits incorporate de-bounce circuitry for enhanced noise rejection and are protected against high transient voltages.
The Ampac Three Input-Output Device is loop-powered and includes bi-directional isolation circuitry for protection against detection loop short circuits. Onboard LED status indication is provided for service and commissioning purposes, a feature that can be deactivated during normal operation to reduce the current draw on the system.
Two packaging options are available. The ‘DIN Mount’ version enables the device to be mounted onto a standard 35mm DIN rail or screwed direct to the back pan of a larger enclosure while the ‘Enclosed’ version allows the device to be surface mounted to a wall.
| Operating Voltage | 17 - 28 V dc |
| Output Contact Rating | 1A at 30 V AC or DC |
| Operating Temperature | -20°C +70°C |
| Humidity | 0 to 95% Non-Condensing |
| Dimensions - DIN Mount | H 75mm x W 144mm x D 25mm |
| Dimensions - Enclosed | H 150mm x W 200mm x D 52mm |
| Material | Grey ABS |
| IP Rating | IP44 (Indoor Use) |
| 4210-0054 | Three Input Output Device DIN Mount |
| 4210-0055 | Three Input Output Device Enclosed |
