INTRINSICALLY SAFE RELAY DEVICE SR-11-C
TORAY ENGINEERING CO.,LTD
TYPE : SR-11-C 
EXPLOSION CLASS : 3nG5
IS CIRCUIT : DC20V 15mA
POWER SUPPLY : AC 100/110 V.50/60Hz
RELAY CONTACT : AC 220 V 5A
SER NO : 11-2453
DATE : 10.1981
CONDITION 3 PCS NEW
REF NO : B306/0.850