The holes on the side are the 10/32" holes
Spring-Loaded/Three-Stepped Counterbalance 0: 0 lb (0kg)
#10-32 x 3/16 Slotted Set Screw
Reversible The motor drive is reversible
TA3F to XLR-3M Connectors
MACROMATIC CONTROLS ARP120A3R RELAY, DPDT, 240VAC, 30VDC, 10A Programmable Gain Amplifiers The holes on the sideThis is a RELAY, DPDT, 240VAC, 30VDC, 10A product from MACROMATIC CONTROLS with the model number ARP120A3RProduct details Contact Material Relay Mounting Socket Coil Type AC Coil Resistance Product Range ARP Series Relay Terminals Quick Connect Contact Current 10A Approvals & Standards CE, CSA, UL Contact Voltage VAC 240VAC Coil Voltage 120VAC Contact Configuration DPDT Contact Voltage VDC 30VDC Other details Brand MACROMATIC CONTROLS Part Number