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Macromatic Over Current Sensing Relay, 0.5-5A, 24V, 1 Sec Delay

Macromatic COH05A8BD Over Current Sensing Relay, 0.5-5A, 24V, 1 Sec Delay

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Price: $112.16

Note: Ships in 5-10 Business Days
MFG P/N: COH05A8BD
MFG: Macromatic
Weight (lbs): 0.3

Availability: In Stock
Product Code: COH05A8BD

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Description

The Macromatic COH05A8BD is a current sensing relay. This encapsulated relay has an input voltage of 24V AC/DC. It is designed to monitor for over current conditions and has an output of 10A SPDT. It checks AC current, with an adjustable range of 0.5-5A and a trip time delay of 0.5-50 seconds. There is a 1 second sensing time delay on startup. The built-in current transformer provides easy access and greater sensitivity. The encapsulated housing works in harsher environments. Note: Image is an approximation. Actual part may differ.

Specifications

Relay Function- Overcurrent
Current Monitor Range- 0.5-5A
Time Trip Delay- 0.5-50 seconds
Sensing Time Delay on Startup- 1 second
Input Voltage- 24V AC/DC
Output- 10A SPDT
Input Voltage Tolerance- +10/-15% of nominal
Load- 2VA
Current Sensing- Type: Toroidal, through hole wiring
Setting Accuracy: Min: +0%, -50%; Max: +10%, -0%
Maximum Allowable Current: Steady-25A Turns; 150A Inrush for 10 Seconds
Trip Point Hysteresis: -5%
Response Time- Time Delay on Reset (Relay OFF): 100ms
Reset Time: 400ms
Operating Temperature- -28 C to 65 C (-18 F to 149 F)
Storage Temperature- -40 C to 85 C (-40 F to 185 F)
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
Mounting- Surface mount with 2 #6 screws
Termination- 0.25" male quick-connect terminals
Overall Dimensions- 3.5" Height x 2.5" Width x 1.5" Depth
Approvals- UL & CUL Recognized

Once the input voltage is introduced and the startup time delay has passed, the relay then starts checking for faults. In the event of an overcurrent fault, the AC current rises above the set Fault Trip Current for a longer period than the set time delay. The relay energizes after the time delay and de-energizes once the current falls below the reset level. The COH05A8BD has an LED which glows red to indicate if an overcurrent fault is detected. Has pilot duty rating. Process control, monitoring for locked rotor or load loss, and open heater or lamp are all typical applications for this type of relay.

Macromatic COH Series Relay Installation Manual