Explosion-Proof; UL and CSA Listed -
Class I, Groups *A, B, C, & D
Class II, Groups E, F & G
Directive 94/9/EC (ATEX) Compliant for
II 2 G Ex d IIC T6 Gb Process Temp≤75°C
IECEx Compliant for Ex d IIC T6 Gb Process Temp≤75°C
*(Group A, stainless steel body only)
Example
L6
EP
B
B
Series
L6
Construction
EP
Upper
B
Body Material
S
Lower
B
Body Material
S
Circuit (Switch)
Type
Line Size
Tee and Float
Options
Switch Options
Options
* Options that do not have ATEX or IECEx
Attention: Units without the "AT" suffix are not Directive 94/9/EC (ATEX) compliant. These units are not intended for use in potentially hazardous
atmospheres in the EU. These units may be CE marked for other Directives of the EU.
W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46361 U.S.A.
Model L6
Specifications - Installation and Operating Instructions
S
3
B
MT
L6EPB-B-S-3-B-MT level switch; brass upper housing, brass lower housing, brass tee with
Polypropylene spherical float, SPDT snap switch, and high temperature option
Series L6 level switch
Explosion proof and weatherproof
Brass
303 Stainless Steel
Brass
303 Stainless Steel
S
SPDT
D
DPDT
3
1˝ NPT
4
1-1/4˝ NPT (No tee models only)
5
1-1/2˝ NPT (No tee models only)
6
2˝ NPT
0
No Tee, Solid Polypropylene Spherical Float*
A
No Tee, 304 SS Cylindrical Float
B
Brass Tee, Solid Polypropylene Spherical Float*
C
No Tee, 304 SS Spherical Float
H
Brass Tee, 304 SS Spherical Float
L
303 SS Tee, 304 SS Spherical Float
S
303 SS Tee, Solid Polypropylene Spherical Float*
MT
Gold Contacts on snap switch for dry circuits (see specifications for ratings)
MV
High Temperature switch rated 400°F (205°C) (see specifications for ratings)*
AT
ATEX approved construction (with JCT option standard)
CSA
CSA approved construction (with JCT option standard)*
IEC
IECEx approved construction (with JCT option standard)
GL
Ground Lead*
ID
Customer Information on standard nameplate
JCT
Weatherproof and explosion-proof junction box*
JCTLH
Weatherproof and explosion-proof junction box, left side
TBC
Terminal Block Connector*
TOP
Top Mounted (No tee models only)*
Float Switch
SPECIFICATIONS
Service: Liquids compatible with
wetted materials.
Wetted Materials:
Float: Solid polypropylene or 304
SS.
Lower Body: Brass or 303 SS.
Magnet: Ceramic.
External Float Chamber (Tee):
Matches lower body choice of brass
or 303 SS.
Other: Lever Arm, Spring, Pin, etc.:
301 SS.
Temperature Limit: -4 to 220°F (-20
to 105°C) Standard, MT high
temperature option 400°F (205°C)(MT
not UL, CSA, ATEX or IECEx). ATEX
compliant AT and IECEx IEC option
ambient temperature -4 to 167°F (-20
to 75°C) process temperature: -4 to
220°F (-20 to 105°C).
Pressure Limits: See next page.
Enclosure Rating: Weatherproof and
Explosion-proof. Listed with UL and
CSA for Class I, Groups A, B, C and D;
Class II, Groups E, F, and G. (Group A
on stainless steel body models only).
0344
II 2 G Ex d IIC T6 Gb
Process Temp≤75°C.
EC-Type Certificate No.: KEMA
04ATEX2128.
ATEX Standards: EN 60079-0: 2009;
EN60079-1: 2007.
IECEx Certified: For Ex d IIC T6 Gb
Process Temp≤ 75°C.
Phone: 219/879-8000
Fax: 219/872-9057
Bulletin E-20
IECEx Certificate of Conformity:
IECEx DEK II.0039.
IECEx Standards: IEC 60079-00:
2007; IEC 60079-1: 2007.
Switch Type: SPDT snap switch stan-
dard, DPDT snap switch optional.
Electrical Rating: UL models: 5A @
125/250 VAC (V~). CSA, ATEX and
IECEx models: 5A @ 125/250 VAC
(V~); 5A res., 3A ind. @ 30 VDC (V ).
MV option: .1A @ 125 VAC (V~). MT
option: 5A @125/250 VAC (V~). [MT
option not UL, CSA, ATEX or IECEx].
Electrical Connections: UL models:
18 AWG, 18˝ (460 mm) long.
ATEX/CSA/IECEx models: terminal
block.
Upper Body: Brass or 303 SS.
Conduit Connection: 3/4˝ male NPT
standard, 3/4˝ female NPT on junction
box models.
Process Connection: 1˝ male NPT on
models without external float chamber,
1˝ female NPT on models with external
float chamber.
Mounting Orientation: Horizontal with
index arrow pointing down.
Weight: Approximately 1 lb (.5 kg)
without external float chamber, 1.75 lb
(.8 kg) with external float chamber.
Specific Gravity: See next page.
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e-mail: info@dwyer-inst.com