Macromatic CAH Series, COH Series, CUH Series Data Sheet

Application data

AC OVERCURRENT & UNDERCURRENT

CAH, COH & CUH Series

Input Voltage Tolerance:

AC Operation: +10/-15% of nominal at 50/60 Hz.
DC Operation: +10/-15% of nominal

Load (Burden): 2VA for all voltages
Current Sensing:

Ranges: Separate 0.5-5A, 2-20A & 5-50A
Type: Toroidal, through hole wiring
Setting Accuracy: Min: +0%, -50%; Max: +10%, -0%
Maximum Allowable Current:

0.5-5A Range: Steady-25A Turns; 150A Turns Inrush for
10 Seconds

2-20A & 5-50A Ranges: Steady-50A Turns; 300A Turns Inrush for

10 Seconds

Trip Point Hysteresis: -5% Overcurrent sensing
+5% Undercurrent sensing

Response Times:

Sensing Delay on Start-up: Fixed values from 0-6 seconds in one

second increments

Time Delay on Trip (Relay ON): Adjustable 0.5-50 seconds or

0.1-7 seconds

Time Delay on Reset (Relay OFF): 100ms
Reset Time: 400ms

Output Contacts:

10 Amperes @ 240VAC, General Purpose
8 Amperes @ 28VDC, Resistive
1/4HP @ 120/240VAC
B300

Life:

Mechanical: 10,000,000 operations
Full Load: 100,000 operations

Temperature: Operating: -28o to 65oC (-18o to 149oF)
Storage: -40o to 85oC (-40o to 185oF)

Indicator LED: Red ON Steady when Fault occurs
Mounting:

Surface mount with two (2) #6 screws

Termination:

0.25” male quick-connect terminals

Approvals:

File #E109466

current sensing relays | encapsulated

Dimensions

Connection Diagram

All Dimensions in

Inches (Millimeters)

800.238.7474 | www.macromatic.com | [e-mail]

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