Install Instructions

Ø1 [25.40]
1 MALE NPT
1-3/4
[44.45]
3/4
[19.05]
6
[152.40]
Ø1-1/16
[26.99]
3/4 MALE NPT
CONDUIT
CONNECTION
Ø1
[Ø25.40]
FLOAT
1 MALE NPT
1-27/32
[46.83]
1-1/16
[26.99]
6-1/2
[165.10]
Ø1-1/16
[Ø26.99]
3/4 MALE
NPT CONDUIT
CONNECTION
Ø1 [25.40] x 2 [50.80]
LONG FLOAT
1 MALE NPT
2-7/8
[73.03]
1-1/16
[26.99]
6-1/2
[165.10]
Ø1-1/16
[26.99]
3/4 MALE NPT CONDUIT
CONNECTION
3-5/64
[78.18]
1-9/64
[28.97]
2 [50.80]
HEX
8-9/16
[217.49]
Ø1-1/16
[26.99]
3/4 MALE NPT
CONDUIT
CONNECTION
1 FEMALE NPT
TYP 2 PLACES
Polypropylene Float
Cylindrical Stainless Steel Float
With External Chamber (Tee)
Round Stainless Steel Float
WETTED MATERIALS CHART
Model
B-S-3-A
B-S-3-B
B-S-3-C
B-S-3-H
B-S-3-O
S-S-3-A
S-S-3-C
S-S-3-L
S-S-3-O
S-S-3-S
Brass
X
X
X
X
X
Bronze
X
X
Ceramic
X
X
X
X
X
X
X
X
X
X
Polypropylene
X
X
X
X
X
301SS
X
X
X
X
X
X
X
X
X
X
303SS
X
X
X
X
304SS
X
X
X
X
X
Note: ATEX, IECEx and KC units only: The temperature class is determined by the
maximum ambient and or process temperature. Units are intended to be used in
ambient of -20°C≤ Tamb ≤75°C. Units may be used in process temperatures up to
105°C providing the enclosure and switch body temperatures do not exceed 75°C.
The standard Temperature Class is T6 Process Temp ≤75°C.
Refer to Certificate No: IECEx DEK 11.0039 for conditions of safe use for IECEx
compliant units.
All wiring, conduit and enclosures must meet applicable codes for hazardous
areas. Conduits and enclosures must be properly sealed. For outdoor or other
locations where temperatures vary widely, precautions should be taken to prevent
condensation inside switch or enclosure. Electrical components must be kept dry
at all times.
CAUTION: To prevent ignition of hazardous atmospheres, disconnect the device
from the supply circuit before opening. Keep assembly tightly closed when in use.
MAINTENANCE
Inspect and clean wetted parts at regular intervals. The cover should be in place at
all times to protect, the internal components from dirt, dust and weather and to
maintain hazardous location ratings. Disconnect device from the supply circuit
before opening to prevent ignition of hazardous atmosphere. Repairs to be
conducted by Dwyer Instruments, Inc. Units in need of repair should be returned to
the factory prepaid.
DIMENSIONS
Model L6 FLOTECT
®
Float Switch
SPDT DPDT
Terminal Connections CSA, IECEx, ATEX Enclosures
3-1/2
[88.90]
4-3/8
[111.13]
Ø3-11/32
[84.93]
4-1/4 [107.95]
CLEARANCE FOR
COVER REMOVAL
2-15/16
[74.63]
25/32
[19.86]
Ø3-3/8
[85.73]
3/4 FEMALE NP
T
CONDUIT
CONNECTION
TYP 2 PLACES
CSA, IECEx, ATEX Conduit Enclosure
E-20 English Only (ATEX).qxp_FR# 440726-00 7/31/20 1:38 PM Page 3