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JB 2700 Limit Switches



JB 2700 HEAVY DUTY LIMIT SWITCHES
  • MULTIPLE CONTACTS - DPDT (2 NO-2 NC),.
  • GENEROUS OVERTRAVEL
  • HEAVY DUTY CAM OPERATED
  • FLEXIBILITY OF MOTION, CW AND CCW
  • AMPLE WIRING SPACE
Description

WIDE RANGE OF OPERATION... MODULAR CONSTRUCTION... PRACTICAL FLEXIBILITY

In every respect these Limit Switches are the “ultimate” of the industry. The scope of Models is tailored to meet today’s rugged requirements... there is a model of size and type of meet virtually all demands.

Besides covering all functional requirements this line is designed to meet practically every condition of installation. These Switches provide reliable “machine-life” service and have the stamina to operate under the unusual conditions... at the same time giving millions of consistently fast, accurate contacts.

Here are a few of the outstanding feature built into the switch for
maximum performance.

  • Generous overtravel and by-pass. Flexibility of motion, clockwise and counter-clockwise.
  • Simplicity and interchangeability of cams.
  • Light operating torque.
  • Fast contact action.
  • Form Z contact arrangement
SPECIFICATIONS
  • Enclosure is water, oil and dust tight.
  • Enclosure meets as per IP-67
  • Contacts made of silver alloy. Contact shifting mechanism is locked in position by the latches until switch lever is actuated.
  • Standard Temperature Range : 200C to + 1100C
  • Operating lever is adjustable to any required position.
  • Operating lever Angles (travel either clockwise or counter-clockwise) maximum degrees of trip travel, reset travel, as well as total lever travel, are determined by the cam selected.
  • Operating Torques - Trip Torque varies from 6.804 (to) 14.968 KLS depending on switch size and cam selected.
  • Current ratings:
Voltage   For Neutral Position Only
125V-A.C.
250V-A.C.
480V-A.C.
600V-A.C.
125V-D.C.
250V-D.C.
20.0 Amps*
15.0 Amps*
10.0Amps*
5.0 Amps*
5.0 Amps*
1.5 Amps*
10.0 Amps*
7.5 Amps*
5.0 Amps*
2.5 Amps*
2.5 Amps*
.75 Amps*

* 75-100% Power Factor.

Standard Switches

CW OPERATION ONLY (Combination B-1/B-2 Cam)

Contacts transfer when lever is operated CW. Lever can be operated CCW but contacts will not transfer.

Contacts Circuits
Mounting
Standard “W” “L”
2N.O.
2N.C.
JB2700-1512 JB2700-2124 JB2700-5121
Operational Data
CCW OPERATION ONLY (Combination B-1/B-2 Cam)

Contacts transfer when lever is operated CCW. Lever can be operated CW but contacts will not transfer.

2N.O.
2N.C.
JB2700-1044 JB2700-4500 JB2700-5400
CW & CCW OPERATION (Combination B-1/B-2 Cam)

Contacts transfer when lever is operated CW or CCW.

2N.O.
2N.C.
JB2700-2502 JB2700-4050 JB2700-5040
Maintained Swi tches

M CAM - MAINTAINED CONTACTS & LEVER POSITION]

Lever and contacts are maintained in tripped position. When lever is moved CCW the N.C. contacts open and the N.O. contacts close. Starting at this position rotating the lever CW the N.O. contacts open and the N.C. close. 

Contacts
Circuits Mounting
Position
1
Position
2
Standard “W” “L”
2N.O.
2N.C.
JB2700-1125 JB2700-2115 JB2700-5112
Operational Data
M7 CAM - MAINTAINED CONTACTS - LEVER RETURNED

Contacts are maintained in tripped position, torsion spring will return lever to initial position when released. When lever is moved CCW the N.C. contacts open and the N.O. contacts close. The lever must then be returned to the initial position and be operated in the CW direction to reset the contacts.

2N.O.
2N.C.
JB2700-1125 JB2700-2115 JB2700-5112
Operational Data
Neutral Position Switches

N CAM - NEUTRAL POSITION - ALL CONTACTS OPEN

As lever is moved CW upper contacts close. As lever is spring returned to starting position upper contacts open. As lever is moved CCW from starting position lower contacts close. As lever is spring returned to starting position lower contacts open.

Contacts
  Mounting
Circuits Standard “W” “L”
4N.O. JB2700-1008 JB2700-2007 JB2700-4104

N CAM - NEUTRAL POSITION - ALL CONTACTS CLOSED

As lever is moved CW lower contacts open. As lever is spring returned to starting position lower contacts close. As lever is moved CCW from starting position upper contacts open. As lever is spring returned to starting position upper contacts close.

Operational Data
N1 - NEUTRAL POSITION - ALL CONTACTS OPEN

As lever is moved CW lower contacts close. As lever is spring returned to starting position lower contacts open. As lever is moved CCW from starting position upper contacts close. As lever is spring returned to starting position upper contacts open.

4N.O JB2700-2205 JB2700-4005 JB2700-5004

N1 CAM - NEUTRAL POSITION - ALL CONTACTS CLOSED 

As lever is moved CW upper contacts open. As lever is spring returned to starting position upper contacts close. As lever is moved CCW from starting position lower contacts open. As lever is spring returned to starting position lower contacts close. 

4N.C JB2700-3600 JB2700-4221 JB2700-5022
Operating levers
Dimensions (mm)

TOP

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