CMR Series MOUNTING INSTRUCTIONS Please read all installation instructions before using CMR Series SSRs. High Power Ready-to-Use DIN Rail Mounted SSRs Crydom CMR Series Solid State Relays were developed to offer the advantages of semiconductor switching technology in a compact, self contained package. Quick and easy installation is coupled with low drive power requirements and efficient, reliable power SCR output. This compact new design offers up to 65 Arms in ambient temperatures of 25ºC. FEATURES CMR Control Voltage D: 4-32 VDC A: 90-140 VAC A 24 35 Operational Voltage 24: 24-280 VAC 48: 48-530 VAC 60: 48-660 VAC E For options only and not required for valid part number Using reasonable force, push CMR in the direction of the arrow shown in fig.1. To remove from DIN Rail fig.1 Mounting on DIN Rail Locate the panel section on which the CMR SSR will be mounted on. DIN clip includes tabs for this type of mounting. Tab holes have a diameter of 4.5 mm. You will need two screws (not included) no larger than that to mount the SSR onto panel. Overvoltage Protection Blank: Not Included P: Included P Input Range Blank: Standard Input E: 18-36 VAC Required for valid part number To install on DIN Rail Locate rail and align with non moveable end of CMR DIN clip. Mounting on Panel PART NUMBER NOMENCLATURE Series Mounting on DIN Rail For removal pull release tag in direction of arrow using blade of screwdriver and pull it away from DIN rail. Mounting clip incorporates tabs for screw mounting to panel Box Clamp terminals Bracket fits all standard 35 mm DIN rail profiles LED input status indicator Operational Current 35: 35 Amps 45: 45 Amps 55: 55 Amps 65: 65 Amps Choose one of the two mounting options and follow the instructions below. -10 Switching Mode Blank: Zero Voltage Turn-On -10: Random Turn-On Align SSR tabs with panel surface and screw both top and bottom sides. Recommended torque is 12 in-lbs (1.36 Nm). IMPORTANT CONSIDERATIONS Mounting Air Gap (A) To achieve maximum ratings if multiple units are installed, there must be a minimum air gap of 1.6 in (40 mm) between the devices (horizontally) and of 3.15 in (80 mm) measured between DIN clip tabs (vertically). Earth Bonding (Grounding) The CMR heat sink is equiped with an earth bonding screw as is required for Class 1 Protection, in accordance with EN 60950 (VDE 0804). Recommended torque is 20 in-lbs (2.2 Nm). Rev: 080111 DERATING CURVES (B) Wire Size Maximum wire size of AWG #8 (8.4 mm2) for input and output terminals. The following deating curves must be observed before installation. Connections Ensure that wires ends are stripped to a minimum length of 0.4 in (10 mm). 60 CMRxxx65xxxx CMRxxx55xxxx CMRxxx45xxxx CMRxxx35xxxx 45 30 Recommended Screw Torque Range 5-6 in-lbs (0.6-0.7 Nm) on input and 10-15 in-lbs (1.1-1.7 Nm) on output terminations. 15 (A) The air gap is the clearance distance adjacent to either side of the relay or assembly measured to 0 20 40 60 Ambient Temperature (ºC) 80 the next closer relay or assembly. (B) 100% Duty Cycle. Rev: 080111 Output Current (Arms) 75