Catalog 1308242
Issued 3-03
AGASTAT
VCA
series
Single Phase
Undervoltage Relay
• Automatic reset minimizes equipment downtime.
• Fixed pickup point prevents low voltage start-up.
• Adjustable dropout point protects against undervoltage
operation.
• Delayed dropout prevents nuisance tripping.
• Compact, inexpensive design saves space, reduces cost.
• Solid state circuitry for enhanced accuracy and long life.
• LED indicates normal voltage condition.
File E60363
Users should thoroughly review the technical data before selecting a product part
number. It is recommended that user also seek out the pertinent approvals files of
the agencies/laboratories and review them to ensure the product meets the
requirements for a given application.
Function
Single phase undervoltage relay.
Input Data
Voltage:
120VAC, 240VAC.
Power Requirement:
4W, max.
Transient Protection:
120VAC ............... 30 joules
240VDC ............... 30 joules
120VAC ............... 10 joules
120VDC ............... 10 joules
Sensing Specifications
Voltage Set-Point Adjustment:
Internal potentiometer (screwdriver
adjustable) with linear calibrated dial.
Response Time:
Depending on severity of undervoltage: 0.1 - 1 sec.
Accuracy: Repeat Accuracy:
±
0.2%
Overall Accuracy:
±
1%.
Environmental Data
Output Data
Arrangement:
1 Form C (SPDT).
Rating:
7A @ 250VAC; 1/6 HP @ 250VAC; 300VA @ 120/240VAC;
3A @ 30VDC.
Expected Mechcanical Life:
10,000,000 operations.
Expected Electrical Life:
100,000 operations at rated resistive load.
Temperature Range: Storage:
-40°C to +85°C.
Operating:
-23°C to +55°C.
Mechanical Data
Mounting:
Panel mount with one #8 screw.
Termination:
0.250 in (6.35) quick connect terminals.
Status Indication:
LED indicates normal voltage condition.
Weight:
3.2 oz. (90.7g) approximately.
Initial Dielectric Strength
Between Terminals and Case:
1,480V.
Between Relay Contacts and Active Circuitry:
1,480V.
Outline Dimensions and Wiring Diagram
Ordering Information
Part Number
VCAA
VCAB
Operating Voltage
120VAC
240VAC
.278
(7.06)
.763
(19.4)
2.00
(50.8)
OUTPUT RELAY
OUTPUT
RELAY
.286
(7.26)
2.00
(50.8)
UNDER
VOLTAGE
ADJUST
INPUT VOLTAGE
.885
(22.5)
1.25
(31.8)
.170 DIA
(4.32)
ACCEPTS
#8 SCREW
Authorized distributors are likely to stock the following:
None at present.
.250 (6.35) X .032 (.813)
QUICK CONNECTS
Dimensions are shown for
reference purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
1303
Refer to inside back cover.
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