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The A21REL-12's internal relays are single-pole double-throw. This relay driver may be powered by the datalogger power supply or a separate 12 Vdc battery.
Especificaciones
Function Allows a data logger to control up to four external ac or dc devices.
Number of Channels 4
Contact Ratings
1 A (at 20 Vdc)
0.3 A (at 120 Vac)
Coil Current 13 mA/relay
Relays dual single-pole, double-throw relays
Operating Temperature -25° to +50°C
Operating Voltage 12 Vdc
Dimensions 14.0 x 6.9 x 3.0 cm (5.5 x 2.7 x 1.2 in.)
Weight 227 g (8 oz)
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