Safe Relay. The ISR series is a compact DIN rail mountable intrinsically safe relay. It

has two independent outputs to the hazardous area and two independent dry contact relay

outputs. The outputs to the hazardous area can be switches or electrodes, when used with

a conductive liquid. When output "A" is completed as in contact closed or low resistance, the

dry output contact "A" is closed after 0.5 seconds and the "A" LED turns On. When output

"A" is opened such as with contact opened or high resistance, the dry output contact

"A" opens after 0.5 seconds and the "A" LED turns Off. The "B" output operates the same

way as the "A" output, but are independent of each other. There is also an additional

LED indicator to indicate when supply power is applied. The ISR must be located and grounded

in a non-hazardous location. All intrinsically safe wiring should be installed in accordance

with NEC NFPA 70 Article 504 and ISA RP 12.6. Models are available with a supply voltage

of 12 or 24 volts AC or DC. They are UL 913 devices for use in Class 1, Division 1 Groups

A, B, C, and D hazardous locations. RK Electronics ISR Series Two Channel Intrinsically Safe

Relays along with thousands of other products and services are available at galco.com.