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252X Datasheet(PDF) 1 Page - Tyco Electronics

Part No. 252X
Description  WILMAR™ Protective Relays - 250 Series, Over/Undervoltage
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Manufacturer  MACOM [Tyco Electronics]
Direct Link  http://www.macom.com
Logo MACOM - Tyco Electronics

252X Datasheet(HTML) 1 Page - Tyco Electronics

  252X Datasheet HTML 1Page - Tyco Electronics  
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Tyco Electronics / www.tycoelectronics.com / Factory Direct Technical Support: 800-253-4560, ext. 2023 (U.S., Canada, Mexico) or 805-220-2020, ext. 2023 (International)
ANSI/IEEE C37.90-1978
The 250 series relays provide combined Overvolt-
age and Undervoltage protection in a single
compact unit.
Models are available for single phase or three
phase applications, and are suitable for either 50
Hz, 60 Hz, or 400 Hz operation. The trip point is
adjustable.
A transistorized circuit provides a sharp and
accurate response at the preset tripping voltage;
unaffected by temperature or frequency variations.
Voltage Sensitive Relays
PRODUCT SPECIFICATIONS
Sample Part No.
250X
Model: L-L Volts
250X = 120 VAC, 1 Phase, 50-400 Hz
251X = 120/208 VAC, 3 Phase, 4 Wire, 50-400 Hz
252X = 115 VAC, 3 Phase, 3 Wire, 50-400 Hz
253X* = 230 VAC, 3 Phase, 3 Wire, 50-400 Hz
254X* = 380 VAC, 3 Phase, 3 Wire, 50-400 Hz
255X*= 460 VAC, 3 Phase, 3 Wire, 50-400 Hz
256X* = 575 VAC, 3 Phase, 3 Wire, 50-400 Hz
Mounting
Blank = Stud
X = Flange
* Enclosure heigth is 3.835"
Consult factory for additional models.
PART NUMBER SELECTION
Part Number
Nominal Voltage ...............................
Undervoltage Trip ............................
Overvoltage Trip ...............................
Pick-Up to Drop-Out Differential .....
Contact Ratings ................................
Contact Form ....................................
Operating Temperature Range ........
250 Series
See Part Number Selection
70-100% of nominal voltage, screwdriver adjustable
100-125% of nominal voltage, screwdriver adjustable
3% maximum
5 amp resistive at 120 VAC or 28 VDC
One set N.O., one set N.C.
-20
°C to +85°C
Notes:
1.
Remove screws for access the overvoltage or undervoltage trip adjustments. Clockwise rotation
of the adjustment potentiometer will raise the trip point.
13
/64" DIA.
4 MTG. HOLES
2.750
B.C.
3.500
2
6 -32 STUDS (6)
Contact Arrangements
N C - Open at nominal voltage. Closed at
Overvoltage and Undervoltage
N O - Closed at nominal voltage. Open at
Overvoltage and Undervoltage
Single
Phase
Three
Phase
27/59
WILMAR™ Protective Relays – 250 Series, Over/Undervoltage
Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm.


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