Omron K6EL Manual
Omron K6EL Manual

Omron K6EL Manual

Ground fault relay

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Ground Fault Relay
K6EL
Economical, Compact, High-performance,
DIN 48
48-mm Ground Fault Relay for Low
Voltages
• Performs continuous monitoring and detection of ground faults
in low-voltage circuits due to the deterioration of insulation in
electrical devices.
• Higher reliability ensured with improved resistance to high-fre-
quency noise when used for inverter loads.
• Remote monitoring of cubicles is possible with automatic-reset
models.
• Ground Fault Relays and through-type ZCTs (zero-phase cur-
rent transformers) are mutually compatible.
• The through-type ZCTs are equipped with test terminals, allow-
ing operation tests for Ground Fault Relays to be performed with
ease.
• Series now includes K6EL-R50, which operates at
50 mA 10%.
Model Number Structure
■ Model Number Legend
K6EL-@@
1
2 3
1. Ground Fault Relay
2. Operating Time and Reset Method
None: 0.1 s manual reset
A:
0.3/0.8 s (switchable) manual reset
R:
0.5 s automatic reset
Ordering Information
■ List of Models
Manual-reset Ground Fault Relays
Type
Operating time
High-speed models
Less than 0.1 s
Delayed models
0.3/0.8 s (switchable)
Automatic-reset Ground Fault Relays
Type
Operating time
Delayed models
Less than 0.5 s
Note: Operating Error
50-mA tap: 10%
150-mA tap: 20%
http://www.ia.omron.com/
Type
High-sensitivity
models
Sensed current
30 mA (fixed)
K6EL-30
---
Type
High-sensitivity models
Sensed current
50 mA/150 mA (switchable)
---
K6EL-R50 (See note.)
3. Sensed Current
30:
30 mA (fixed)
50:
50 mA/150 mA (switchable)
100: 100 mA/200 mA (switchable)
200: 200 mA/500 mA (switchable)
500: 500 mA/1,000 mA (switchable)
Medium-sensitivity models
100 mA/200 mA
200 mA/500 mA
(switchable)
(switchable)
K6EL-100
K6EL-200
K6EL-A100
K6EL-A200
Medium-sensitivity models
500 mA/1,000 mA (switchable)
K6EL-R500
---
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
500 mA/1,000 mA
(switchable)
K6EL-500
K6EL-A500
1

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Summary of Contents for Omron K6EL

  • Page 1 • The through-type ZCTs are equipped with test terminals, allow- ing operation tests for Ground Fault Relays to be performed with ease. • Series now includes K6EL-R50, which operates at 50 mA 10%. Model Number Structure ■ Model Number Legend K6EL-@@ 1.
  • Page 2: Specifications

    3 VA max. Weight Approx. 110 g Note: 1. The K6EL-R50 requires a 100-VAC control power supply. 2. Only the K6EL-R50 can be switched between 50 mA 10% and 150 mA 20%. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
  • Page 3 480 g 700 g 6.6 kg 1.3 kg 2.5 kg 3.5 kg Note: Do not connect ZCT output terminals k and l to ground. Doing so may result in damage to the Relay. http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
  • Page 4: Internal Block Diagram

    200 VAC (See note 2.) Note: 1. The K6EL-R50 does not have terminals 6 and 7. 2. The K6EL-R500 and K6EL-R50 do not have terminal 2. (They cannot be used at 200/220 V.) http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
  • Page 5: Connection Examples

    Note: All units are in millimeters unless otherwise indicated. Ground Fault Relay 63.7 13.6 Applicable Connecting Sockets P2CF-11 Front Connecting Socket P3GA-11 Back Connecting Socket 44.8 × 44.8 PL11 Back Connecting Socket http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
  • Page 6 8 7 6 5 70 max. 35.4 40± Two, 4.5-dia. holes 10 11 1 2 50 max. 31.2 max. P3GA-11 Back Connecting Socket 27 dia. Terminal Arrangement (Top View) 25.6 2 1 11 10 16.3 http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
  • Page 7 Cutout Dimensions 42 dia. Two, 5-dia. holes or two, M4 screw holes (mounting pitch) OTG-L68 (400 A) Mounting Hole Cutout Dimensions 68 dia. Two, 5-dia. holes or two, M4 screw holes (mounting pitch) http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
  • Page 8 Cutout Dimensions Four, 8.5-dia. holes or four, M8 screw holes Indoor Separate-type Models 52 dia. OTG-CN52 (200 A) M4 terminal screws Mounting Hole Cutout Dimensions Two, 6.5-dia. holes or two, M6 screw holes http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
  • Page 9 200 mm 150 mm 100 mm OTG-CN77 400 A 77 dia. 500 mm 400 mm 400 mm 325 mm OTG-CN112 600 A 112 dia. 500 mm 500 mm 1,000 mm 1,000 mm http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.
  • Page 10: Test Circuit

    (i.e., the current drops below the sensed current). 1. With the K6EL-@100, 200, 500, R50, and R500, the sensed cur- rent can be switched using a flat-bladed screwdriver. 2. The sensed current for the K6EL-30 is fixed and hence cannot be switched. http://www.ia.omron.com/...
  • Page 11 K6EL Q&A Q: How does the K6EL operate when used for inverter loads (e.g., inverter motors and inverter air conditioners)? A: The influence of high-frequency noise generated by the inverter has been reduced by combining a special ground fault relay IC and a capacitor for cutting out high-frequencies. The possibility of malfunctions due to the influence of the inverter is much less than with the existing ESA Ground Fault Relay.
  • Page 12 Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specifi ed) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS.

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