Namco Controls EA770 Catalog Page

Single Pole Standard Environment (Super Sealed)
Limit Switches
Butt Contacts
• Multiple Contacts — SPDT
• Epoxy Sealed
• Generous Overtravel
• Heavy Duty Cam Operated
• Flexibility of Motion CW , CCW and CW/CCW
Limit Switches
Wide range of operation...modular
construction...practical flexibility.
The Series EA770 Super Sealed Water & Oil Tight Snap-Lock Limit Switches are the “ultimate” of the industry. By incorporating the moisture seal with these switches, trouble caused by water, soluble oils or condensation has been eliminated. The scope of models is tailored to meet today’s rugged requirements...there is a model of size and type to meet virtually all demands.
Besides covering all functional requirements, this line is designed to meet practically every condition of installation. These Snap-Lock Switches provide reliable “machine-life” service and have the stamina to operate under unusual conditions...at the same time giving millions of consistently fast, accurate contacts.
Here are a few of the outstanding features built into the switch for maxi­mum performance. Generous overtravel and by-pass, flexibility of motion, fast contact action, and Form Z contact arrangement.
Options Available
• Low temperature (-40°C to +90°C) components and lubricants.
• A variety of levers can be ordered from Namco Controls Series EL. NOTE: Levers must be ordered as separate item. See pages 294-301.
• Basic design permits mounting from either side or back. Style L or W mounting plates, for back mounting.
252
EA770 Single Pole 1 N.O. - 1 N.C. / Butt Contacts / Cam Action
Angle Angle Angle Angle Angle Angle Standard Wide Long A B C D E F Mounting Mounting Mounting Dir. Of Trip Reset Recom. Total Min. Travel Overall Torque Contact
Model No. Model No. Model No. Operation Travel Travel Travel Travel to Maintain Travel (inch lbs) Config.
STANDARD TRAVEL
EA770-10000 EA770-40000 EA770-70000 CW 18° 14° 30° 90° --15A EA770-10001 EA770-40001 EA770-70001 CCW 18° 14° 30° 90° --15B EA770-10100 EA770-40100 EA770-70100 CW/CCW 18° 14° 30° 90° --15C
See Operating Levers Section
Common Switch Characteristics
SINGLE POLE, STANDARD (SUPER-SEALED) ENVIRONMENT,
BUTT CONTACTS
NEMA Enclosure Type 1, 4, 6, 13 Housing Material Zinc
Ambient Temperature Range* -20°C to +90°C Shipping Weight 3 lbs. approx. Lever Adjustment 7°30' Increments Thru 360° Contacts Butt, Silver Alloy, Form Z Lead Wires** 4 lead wires, part no. shown
is for 15 ft.
*Some low temperature (-40°C to +90°C) versions available. Contact factory. **Available in increments of 5 ft. Contact factory.
Continuous Current Rating - Amperes
VOLTAGE AC DC
125 20.0 5.0 250 15.0 1.5 480 10.0 ­600 5.0 -
75-100% Power Factor
Dimensions and Mounting
STANDARD MOUNTING PLATE
3.19"
(81.0)
0.92"
(23.4)
1.06"
(26.9)
5.19"
(131.8)
0.13" (3.3)
1.59"
(40.4)
1/4–20 Thd.
0.38 Deep Four Holes
2.50"
(63.5)
WIDE MOUNTING PLATE
0.53"
(13.5)
0.50"
(12.7)
0.69"
(17.5)
0.88"
(22.4)
48 Serrations Equally Spaced
0.495/0.490 O.D.
1.31"
(33.3)
3.00"
(76.2)
1.13"
2.25"
(28.4)
(57.2)
2.28" (57.9)
0.260/0.255 Dia. Four Holes
0.28" (7.1)
EA770
1.06"
(26.9)
0.44"
(11.1)
4.13"
(104.9)
3.06"
(77.7)
2.63"
(66.8)
0.75"-14-N.P.S. for EA770-1, 4, 7
0.02"
(0.51)
Limit Switches
Contact Configurations
CIRCUIT A
D B
Initial
C A
CW
CIRCUIT B
D B
Initial
C A
CW
CIRCUIT C
D B
Initial
C A
CW
Operational Data Drawings
C
C
A
A
B
D
B
CCW
CCW
CCW
D
LONG MOUNTING PLATE
0.66"
(16.8)
2.81"
(71.4)
3.25"
(82.6)
0.260/0.255 Dia. Four Holes
1.81"
(46.0)
2.25"
(57.2)
0.41" (10.4)
4.22"
(107.2)
0.22" (5.6)
2.44" (62.0)
0.22" (5.6)
4.84"
(122.9)
3.00"
(76.2)
Namco Controls Corporation
Mayfield Village, OH 44143
(440) 460-1360 • FAX (440) 460-3800 • namcocontrols.com
For technical assistance, call 1-800-NAMTECH
253
Miscellaneous
Operating
Butt
Types
0.50"
(12.7)
Limit Switches
0.25" (6.4)
Standard Operating Lever
EL010-53420 (D-1260) (for .500 Dia. Shaft Switches)
Levers
1.50"
(38.1)
0.88"
(22.2)
Contacts
For Series: EA040, EA060, EA080, EA130, EA140, EA170, EA700, EA710, EA730, EA760, EA770, EA780, EA790, EA800, EA880, EA990
Select the operating lever for your application with regards to dimensions and materials required.
Requests for operating levers not shown should include lever style and all pertinent information as to limit switch number, dimensions, materials, etc.
Depending upon your application, levers are available in cold rolled steel, stainless steel, or bronze. Rollers are available in steel, nylon, Bryl. Cop., stainless steel or steel ball bearings. Please consult materials column of the lever of your choice.
This style and size operating lever is considered standard for the majority of snap-lock switch installations. The EL010-53420 (D1260) lever is steel with a nylon roller and a stainless steel roller pin. Like all snap-lock levers, the serrated mounting hole matches the serrated lever shaft of the switches to provide fixed adjustment of the lever in 7.5° increments.
294
For Series EA040, 060, 080, 130, 140, 170, 700, 710, 730, 760, 770, 780, 790, 800, 880, 990
L
B
B
A
L
A
Style R - Regular Straight Type
Ordering Numbers Material
Part Number Reference L A B Lever Roller
EL060-50320 D1260BA 3/4 3/4 1/4 C.R.S. C.R.S. EL060-51319 1 3/4 1/4 C.R.S. Bryl. Cop. EL060-52321 D1260GQ 1-1/4 3/4 1/4 C.R.S. C.R.S. EL060-53923 D1260BH 1-1/2 1-1/4 1/4 C.R.S. C.R.S. EL010-53338 DS1260 1-1/2 3/4 1/4 Steel C.R.S.
EL060-53300 1-1/2 3/4 1/4 Brass Bryl. Cop. EL010-53336 1-1/2 3/4 1/4 Steel S.S. EL010-53337 1-1/2 3/4 1/4 Steel Bryl. Cop. EL060-53401 D126ORF 1-1/2 7/8 9/32 Brass Nylon EL060-53402 1-1/2 7/8 9/32 Brass Bryl. Cop.
EL010-53420 D1260 1-1/2 7/8 9/32 Steel Nylon EL010-53429 D1260Y 1-1/2 7/8 9/32 Steel B.B. EL060-53536 D1260Z 1-1/2 1 1/4 C.R.S. C.R.S. EL060-53926 D1260CL 1-1/2 1-3/8 1/4 C.R.S. C.R.S. EL060-55327 D1260E 2 3/4 1/4 C.R.S. C.R.S.
EL060-55300 2 3/4 1/4 C.R.S. Bryl. Cop. EL060-55520 D1260AC 2 1 1/4 C.R.S. C.R.S. EL060-55601 2 1 1/4 C.R.S. Bryl. Cop. EL060-55530 D1260RT 2 1 1/4 Brass Bryl. Cop. EL060-55927 D1260GT 2 1-1/2 1/4 C.R.S. C.R.S.
EL060-50321 D1260BC 2-1/8 3/4 1/4 C.R.S. C.R.S. EL060-50501 D1260B 2-1/8 1 1/4 C.R.S. C.R.S. EL060-50334 D1260M 2-1/4 3/4 1/4 C.R.S. C.R.S. EL060-59300 D1260KC 2-3/8 3/4 1/4 C.R.S. C.R.S. EL010-56427 D1260K 2-1/2 7/8 9/32 Steel Nylon
EL010-56334 DS1260K 2-1/2 3/4 1/4 Steel C.R.S. EL010-55421 D1260DF 2-1/2 1 1/4 C.R.S. C.R.S. EL060-56500 D1260RR 2-1/2 1 1/4 Brass Bryl. Cop. EL060-56920 D1260CP 2-1/2 1-1/2 1/4 C.R.S. C.R.S. EL060-50322 D1260BD 2-3/4 3/4 1/4 C.R.S. C.R.S.
EL060-57300 2-3/4 3/4 1/4 C.R.S. Bryl. Cop. EL010-58300 3 3/4 1/4 Steel Bryl. Cop. EL010-58337 DS1260L 3 3/4 1/4 Steel C.R.S. EL060-58305 3 3/4 1/4 Brass Bryl. Cop. EL010-58400 3 7/8 9/32 Steel Bryl. Cop.
EL010-58423 D1260L 3 7/8 9/32 Steel Nylon EL010-58451 3 7/8 9/32 Steel C.R.S. EL060-58401 3 7/8 9/32 Brass Nylon EL060-58403 D1260VQ 3 7/8 9/32 S.S. Bryl. Cop. EL010-58521 D1260CJ 3 1 1/4 Steel C.R.S.
EL010-58522 3 1 1/4 C.R.S. Bryl. Cop. EL010-58923 D1260CN 3 1-1/4 1/4 Steel C.R.S. EL060-58923 3 1-1/4 1/4 Brass Steel EL010-58900 D1260VR 3 1-1/2 1/4 Steel Nylon EL010-58920 D1260AE 3 1-1/2 1/4 Steel C.R.S.
EL060-58320 D1260BB 3-1/2 3/4 1/4 C.R.S. C.R.S. EL060-58431 D1260AP 3-1/2 1 1/4 C.R.S. C.R.S. EL060-58932 3-1/2 3/4 1/4 Brass Bryl. Cop. EL060-58930 3-1/2 1-1/2 1/4 Brass Bryl. Cop. EL060-58326 D1260C 4 3/4 1/4 C.R.S. C.R.S.
EL060-58304 D1260WD 4 3/4 1/4 C.R.S. Bryl. Cop. EL060-50523 D1260BL 4 1 1/4 C.R.S. C.R.S. EL060-58925 4 1-1/4 1/4 Brass Bryl. Cop. EL060-58920 D1260AB 4 1-1/2 1/4 C.R.S. C.R.S. EL060-58901 4 1-1/2 9/32 C.R.S. Nylon
EL060-50335 D1260N 5 3/4 1/4 C.R.S. C.R.S. EL060-50925 D1260BW 5 1-1/2 1/4 C.R.S. C.R.S. EL060-50305 D1260CQ 6 3/4 1/4 C.R.S. C.R.S. EL060-50338 6 3/4 1/4 C.R.S. Bryl. Cop EL060-50930 D1260JE 6 1-1/4 1/4 C.R.S. C.R.S.
EL060-50703 D1260KD 6 3 1/4 C.R.S. C.R.S.
EL Series
All dimensions are in inches.
Limit Switches
Namco Controls Corporation
Mayfield Village, OH 44143
(440) 460-1360 • FAX (440) 460-3800 • namcocontrols.com
For technical assistance, call 1-800-NAMTECH
295
Miscellaneous
Operating
Butt
Types
Levers
For Series EA040, 060, 080, 130, 140, 170, 700, 710, 730, 760, 770, 780, 790, 800, 880, 990 Only
Limit Switches
L
C
B
Offset lever with straddle-supported roller.
A
Contacts
Style RLO - Regular Lever Offset Type
Ordering Numbers Material
Part Number Reference L A B C Lever Roller
*EL020-53326 D1260GX 1-1/2 3/4 1/4 1-1/4 Mang. Br. Steel *EL020-53325 D1260GU 1-1/2 3/4 1/4 1-3/16 Mang. Br. Steel EL020 55327 D1260HZ 2 3/4 1/4 1-1/8 Mang. Br. Steel *EL020-55300 D1260JD 2 3/4 1/4 1-1/2 Mang. Br. Steel EL020-56320 D1260BT 2-1/2 3/4 1/4 1 Mang. Br. Steel
*EL020-56321 D1260DW 2-1/2 3/4 1/4 2-1/4 Mang. Br. Steel EL020-56421 D1260DG 2-1/2 1 1/4 1 Mang. Br. Steel EL020-58922 D1260FT 3 1-1/4 1/4 1-1/4 Mang. Br. Steel EL020-58923 3 1-1/4 1/4 1-1/4 Mang. Br. S.S. EL020-59900 D1260AY 5-1/2 1-1/2 1/4 1-3/4 C.R.S. Steel
*On Series EA040/060/080/170, Lever will not clear top of switch when mounted with Roller facing the rear.
L
B
Machined lever with wide roller straddle­supported directly in line with the serrated mounting hole.
C
B
Lever provides straddle-type support for wide roller, which is offset from serrated lever hub. Side toward switch is machined straight.
A
L
A
Style RW - Wide Roller Regular Type
Ordering Numbers Material
Part Number Reference L A B Lever Roller
EL070-53501 D1260AJ 1-1/2 1 1/2 C.R.S. Bryl. Cop. EL070-50507 D1260CY 1-5/8 1 1/2 C.R.S. Bryl. Cop. EL070-56921 D1260DY 2-1/2 1-1/4 1/2 C.R.S. Steel EL060-00024 D1260AL 3 1-1/2 1/2 C.R.S. Steel EL070-50921 D1260BE 4 1-1/4 1/2 C.R.S. Steel
Style RWO - Wide Roller Offset Type
Ordering Numbers Material
Part Number Reference L A B C Lever Roller
EL080-53329 D1260R 1-1/2 3/4 1/2 3/8 Mang. Br Steel EL080-53932 D1260P 1-1/2 1-1/2 1/2 3/8 C.R.S. Steel EL080-55323 D1260FR 2 3/4 1/2 3/8 C.R.S. Steel
EL080-54905 D1260DD 2 1-1/2 1/2 3/8 C.R.S. C.R.S. EL080-56301 D1260AH 2-1/2 3/4 1/2 3/8 C.R.S. Steel EL080-56305 2-1/2 3/4 1/2 3/8 C.R.S. Bryl. Cop. EL080-58322 D1260GN 3 3/4 1/2 3/8 C.R.S. Steel
EL080-58901 D1260DE 3 1-1/2 1/2 3/8 C.R.S. Steel EL080-58906 D1260DZ 3-1/2 1-1/2 1/2 3/8 C.R.S. Steel EL080-58909 D1260HA 4 1-1/2 1/2 3/8 C.R.S. Steel EL080-50924 D1260BS 6 1-1/2 1/2 3/8 C.R.S. Steel
296
For Series EA040, 060, 080, 130, 140, 170, 700, 710, 730, 760, 770, 780, 790, 800, 880, 990 Only
Style S - Side Roller Type
Part Number Reference L A B C Lever Roller
EL150-53303 1-1/2 3/4 3/4 7/8 C.R.S. Bryl. Cop.
C
Side supported roller offset on front side of lever machined with straight sides
C
L
B
A
L
EL150-53301 D1260A 1-1/2 3/4 1/4 5/8 C.R.S. Steel EL150-53300 D1260DU 1-1/2 3/4 3/4 7/8 C.R.S. Steel EL150-53901 D1260HV 1-1/2 1-1/4 1/4 5/8 C.R.S. Steel EL150-55300 2 3/4 1/2 3/4 C.R.S. Bryl. Cop. EL150-55303 D1260DT 2 3/4 1/4 5/8 C.R.S. Steel
EL150-55301 D1260JJ 2 3/4 1/2 3/4 C.R.S. C.R.S. EL150-56300 D1260DX 2-1/2 3/4 1/4 5/8 C.R.S. C.R.S. EL150-56500 2-1/2 1 1/2 3/4 C.R.S. S.S. EL150-57300 D1260DO 2-3/4 3/4 1/4 5/8 C.R.S. C.R.S. EL150-58901 4 1-1/4 1/4 5/8 Bronze Nylon EL150-58902 4 1-1/4 1/4 5/8 Bronze Steel
Style SLO - Side Roller Lever Offset Type
Part Number Reference L A B C Lever Roller
EL090-53324 D1260GZ 1-1/2 3/4 1/4 1 Bronze Steel EL090-53336 1-1/2 3/4 1/4 1-3/8 Bronze Nylon EL090-53321 D1260CT 1-1/2 3/4 1/4 1-3/8 Bronze Steel EL090-53322 1-1/2 3/4 1/4 1-3/8 Bronze Bryl. Cop. EL090-53328 D1260GV 1-1/2 3/4 1/4 2 Bronze Steel
EL Series
Ordering Numbers Material
Limit Switches
Ordering Numbers Material
B
Right angle offset lever has side­supported roller mounted on end.
B
A
E
D
Angle type rocker arm has both side­supported rollers mounted on same side.
A
C
R
Style TS - Two Roller Same Side
Ordering Numbers Material
Part Number Reference R A B C D E Lever Roller
EL040-50327 D1260CM 1-3/8 3/4 1/4 5/8 107°34’ 36° Bronze Steel EL040-50328 D1260JQ 1-3/8 3/4 1/2 3/4 107°34’ 36° Bronze Steel
†EL040-58904 D1260JH 3 1-1/2 1/2 3/4 150° 15° Bronze Steel †EL040-58905 3 1-1/2 1/2 3/4 150° 15° Bronze Bryl. Cop.
Namco Controls Corporation
Mayfield Village, OH 44143
(440) 460-1360 • FAX (440) 460-3800 • namcocontrols.com
For technical assistance, call 1-800-NAMTECH
297
Miscellaneous
Operating
Butt
Types
Levers
For Series EA040, 060, 080, 130, 140, 170, 700, 710, 730, 760, 770, 780, 790, 800, 880, 990 Only
A
B
Limit Switches
E
Angle type rocker lever has side-supported rollers mounted on opposite sides
C
R
D
Contacts
Style TSO - Two Roller Opposite Side
Ordering Numbers Material
Part Number Reference R A B C D E Lever Roller
EL030-50301 D1260AA 1-3/8 3/4 1/4 3/4 107°34’ 36°13’ Bronze Steel EL030-50302 D1260DH 1-3/8 3/4 1/2 1 107°34’ 36°13’ Bronze Steel EL030-52322 D1260DQ 1-1/2 3/4 3/4 1-1/4 90° 45° Bronze Steel
L
R
A
B
Single-loaded lever with straddle-supported roller. Used where switch action is required in one direction only—return movement of actuating mechanism does not operate the switch.
L
D
R
D
A
E
B
Style KR - Knee Action Straight Type
Ordering Numbers Material
Part Number Reference R A B D L Lever Roller
EL100-55401 D1260JM 1 7/8 1/4 90° 2 Steel Steel EL100-55402 1 7/8 1/4 90° 2 Steel Bryl. Cop. EL100-55403 1 7/8 1/4 90° 2 Steel S.S.
Style KRO - Knee Action Offset Type
Ordering Numbers Material
Part Number Reference R A B D E L Lever Roller
EL110-50401 D1260JV 1-1/8 7/8 1/4 41°30’ 67 °30’ 1-7/8 Steel Steel
298
Spring-loaded offset lever with straddle-supported roller. Used where switch action is required in one direction only—return movement of actuating mechanism does not operate switch.
For Series EA040, 060, 080, 130, 140, 170, 700, 710, 730, 760, 770, 780, 790, 800, 880, 990 Only
A
L
Steel shaft with bakelite knob.
For Series EA700, 710, 730, 760, 770, 780, 790, 800, 880, 990 Only
EL Series
Style M - Manual Type
Ordering Numbers Material
Part Number Reference L A Lever Knob
EL050-58900 D1260EP-3 3 1-3/8 Steel Bakelite EL050-59901 D1260EP-1 4-1/16 1-3/8 Steel Bakelite EL050-59900 D1260EP 6-5/16 1-3/8 Steel Bakelite
Limit Switches
B
A
C
Nickel Plate Steel (N.P.S.) Lever Nickel Plated
A
D
E
B
Straight
Ordering Numbers Material
Part Number Reference A B C D E Lever Roller
EL010-62401 SL-160 1-1/2 1/2 7/8 9/32 25/64 Zinc Steel EL010-63414 SL-160K 1-1/2 1/2 7/8 9/32 25/64 Zinc S.S. EL010-63415 SL-160N 1-1/2 1/2 7/8 9/32 25/64 Zinc Nylon
Offset
Ordering Numbers Material
Part Number Reference A B C D E Lever Roller
EL020-63412 SL-160C 1-1/2 1/2 7/8 9/32 1-7/16 Zinc Steel EL020-63414 SL-160L 1-1/2 1/2 7/8 9/32 1-7/16 Zinc Nylon EL020-63415 SL-160S 1-1/2 1/2 7/8 9/32 1-7/16 Zinc S.S.
C
Lever Nickel Plated
D
E
Namco Controls Corporation
Mayfield Village, OH 44143
(440) 460-1360 • FAX (440) 460-3800 • namcocontrols.com
For technical assistance, call 1-800-NAMTECH
299
Miscellaneous
Operating
Butt
Types
Levers
For Series EA700, 710, 730, 760, 770, 780, 790, 800, 880, 990 Only
B
Limit Switches
A
Adjustable
C
E
D
Contacts
Adjustable Straight
Ordering Numbers Material
Part Number Reference A B C D E Lever Roller
EL120-60400 SL-170A 1-3/4-3 21/32 7/8 9/32 11/32 Steel Steel EL120-60600 SL-170C 1-7/8-3 21/32 2 9/32 11/32 Steel Steel EL120-69415 SL-170K 1-3/4-3 21/32 7/8 9/32 11/32 Steel Nylon EL120-69421 SL-170R 3-3/4-5 21/32 7/8 9/32 11/32 Steel Steel EL120-60601 3-3/4-5 21/32 2 9/32 11/32 Steel Steel
A
Adjustable
3/4"
C
1 1/2"
10 1/2"
D
E
1/4" Square
B
Adjustable Offset
Ordering Numbers Material
Part Number Reference A B C D E Lever Roller
EL130-64410 SL-170 1-3/4-3 21/32 7/8 9/32 1-25/32 Steel Steel EL130-69410 SL-170D 1-3/4-3 21/32 7/8 9/32 1-25/32 Steel Nylon EL130-69412 SL-170F 1-3/4-3 21/32 7/8 9/32 2-3/8 Steel Steel EL130-69413 SL-170G 1-3/4-3 21/32 7/8 9/32 3-1/2 Steel Steel
EL130-69414 SL-170J 1-3/4-3 21/32 7/8 9/32 15/16 Steel Steel *EL130-69411 SL-170E 1-3/4-3 21/32 7/8 9/32 1-9/32 Steel Steel EL130-20401 1-3/4-3 21/32 7/8 17/64 3-1/2 Steel Nylon
*Roller mounted on opposite side
Rod Lever
Ordering Numbers
Part Number Reference Dimensions Material
EL140-69917 SL170M-1 Other rod lengths available to suit requirements Steel Rod
3/4"
300
1/2"
For Series EA040, 060, 080, 130, 140, 170, 700, 710, 730, 760, 770, 780, 790, 800, 880, 990 Only
A
2"
B
5/8"
3 3/4"
Dia.
1/2"
EL Series
Style VR - Belt Mis-Alignment Lever-Adjustable
“A” “B” “C” Material
Ordering Number (Adjustable) Max. Dia. Lever Roller
C
EL140-58500 4.45/3.82” 8.38” 1.50” Steel Delrin EL140-58600 4.45/3.82” 8.38” 2.50” Steel Delrin
B
3"
Square Corners Only EL160-58500
Style YR - Belt Mis-Alignment Lever
“A” “B” “C” Material
A
C
Dia.
Ordering Number Max. Dia. Lever Roller
EL160-58500 2.24” 5.64” 1.25” Steel Nylon EL160-58600 3.50” 6.90” 2.50” Steel Nylon
Limit Switches
Namco Controls Corporation
Mayfield Village, OH 44143
(440) 460-1360 • FAX (440) 460-3800 • namcocontrols.com
For technical assistance, call 1-800-NAMTECH
301
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