Toolless contactor disassembly (sizes 00 to 4) - allows quick access for inspection and maintenance
Just release 2 retainers and pull a clip to get at magnet, coil and contacts
Saddle clamp terminals (sizes 00 to 1) - accommodate ring, spade and stripped wire leads and carry permanent stamped in identification
Staggered arrangement makes wiring easier and helps prevent shorting between phases
Current carrying components - contact tips are weld resistant silver cadmium oxide (fine silver on sizes 00 and 0 only)
Contacts are installed in a wedge configuration for positive make with minimum bounce
Class 20 overload protection
Visual trip indicator with manual reset - to avoid surprise restarts
Reset occurs on arm upstroke so a tripped condition can't be overridden by holding the arm down
Manual weld check - provides a convenient test against welding of overload relay contacts
Just depress the weld check operator to trip the relay, run a simple continuity test across the relay contacts, then depress the manual reset to return the starter to service
Dual bimetals - anticipate overloads, responding to rising current and temperature with faster tripping on severe overloads for better motor protection
Trip points are factory calibrated for accuracy
+/-10% trip adjustment - by turning a dial in the overload relay face allows "tuning" the protection to the motor on the spot
Specificationsarrow_drop_down
Amperage Rating: 18 A
Application: Motor Control Center, Custom Type Control Panel, Switchgear Equipment, Electrical Distribution and Control Applications
Auxiliary Contact Rating: 3NO
Coil Voltage: 115 to 120 VAC
Connection Type: Saddle Clamp/Line/Load
Country of Origin: UU
Dimensions: 10 in H x 6 in W x 4.63 in D
Enclosure Type: NEMA 1
Frequency Rating: 50/60 Hz
Includes: Holding Interlock, Pressure Terminal and 3-Leg Block Type Overload Relay
Mfg Standards/Approvals: ARRA Compliant|Buy American Act Compliant|RoHS Compliant
Number of Poles: 3
Operating Cycles: 20000000 Cycles
Operating Temperature: -25 to 40 deg C
Overload Relay: 3-Leg Block/Thermal
Package Height: 6.5 in
Package Length: 13.0 in
Package Volume: 0.343 CF
Package Weight: 7.66 lb
Package Width: 7.0 in
Reset Type: Manual
Series: CR306/300-Line
Type: Full Voltage Magnetic Non-Combination Non-Reversing