+9b part no. And 3+2a part no. And 128a part no. And 368 part no. And 240a part no.
Electrical Power Source Relationship
Operating
Internal Battery Accommodation
Not included
Material And Location
Steel housing
Inclosure Feature
Single item w/housing
Test Type For Which Designed
Applying pulsing tests to step-by-step switches and inter-office repeaters, provide accurate tests of pulsing relays and switch, motor mechanisms, simulates extreme loop and leakage conditions
