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J52-4101-002 Datasheet, PDF (2/2 Pages) Magnetrol International, Inc. – J52 Refrigerant Level Switches
TECHNOLOGY
A permanent magnet Πis attached to a pivoted
switch actuator and adjustment screw . As the
float Ž rises following the liquid level, it raises the
attraction sleeve  into the field of the magnet,
which then snaps against the non-magnetic
enclosing tube , actuating the switch ‘. The
enclosing tube provides a static pressure boundary
between the switch mechanism and the process.
On falling level, a spring retracts the magnet,
deactivating the switch.
2
5
Pivot
6
Return
4
Spring
1
3
Process Liquid
Rising Level
Process Liquid
Falling Level
SPECIFICATIONS
Inches (mm)
Voltage
Basic Electrical Ratings
Dry Contact Non-inductive
Ampere Rating
120 VAC
240 VAC
24 VDC
120 VDC
240 VDC
15.00
15.00
6.00
0.50
0.25
TYPE 4X — 4.25 (108)
TYPE 4X/7/9 — 6.00 (152)
1/2" NPT Conduit
Connection may
be rotated through 360°
24.00 (610) Long
wires furnished
Rotation Clearance
15.00
(381)
10.00
3/4" NPT (254)
3/4" Socket weld
Actuating
Liquid Specific Gravity
Levels 0.60 0.80 1.00 1.20 1.30 1.40 1.50 1.60 1.70
R
1.00 1.44 1.69 1.88 1.94 2.00 2.06 2.13 2.13
(25) (37) (43) (48) (49) (51) (52) (54) (54)
L
2.38 2.63 2.81 2.94 3.00 3.06 3.06 3.13 3.13
(60) (69) (71) (75) (76) (78) (78) (80) (80)
NOTE: Actuating levels are factory set for maximum differential between
switch actuation. Internal adjustment provided for reduced differential.
Levels ±0.25" (6 mm)
WARRANTY
RISING LEVEL
FALLING LEVEL
R
L
5.75
(146)
3/4" NPT
3/4" Socket weld
2.81
(71)
4.25 (108)
All Magnetrol mechanical level and flow
controls are warranted free of defects in
materials or workmanship for five full years
from the date of original factory shipment.
If returned within the warranty period; and,
upon factory inspection of the control, the
cause of the claim is determined to be
covered under the warranty; then, Magnetrol
will repair or replace the control at no cost
to the purchaser (or owner) other than
transportation.
Magnetrol shall not be liable for
misapplication, labor claims, direct or
consequential damage or expense arising
from the installation or use of equipment.
There are no other warranties expressed or
implied, except special written warranties
covering some Magnetrol products.
5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com
145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306
Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93
Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317
Copyright © 2011 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.
Performance specifications are effective with date of issue and are subject to change without notice.
Magnetrol & Magnetrol logotype are registered trademarks of Magnetrol International.
Viton® is a registered trademark of DuPont Performance Elastomers.
Lexan® is a registered trademark of General Electric.
BULLETIN: 46-122.7
EFFECTIVE: August 2010
SUPERSEDES: April 2009