EXPLOSION PROOF SWITCHES

LSX/BX Series Weather sealed explosion proof switches

Actuators

LSX/BX Series weather sealed, explosion proof limit switches are for use either indoor or outdoors in hazardous atmospheres. They are completely sealed and designed for use in explosive gas/dust environments.

LSX/BX products meet the sealing standards of NEMA 1, 3, 4, 6, 7, 9 and 13. BX products are also sealed to IP67 standard and are ATEX approved (see specifications below).

All heads are field adjustable at 90° increments. Heads with side rotary actuators can be adjusted for clockwise and counter clockwise operation.

Sealing:

 

 

Rotary actuated switches

 

 

 

LSX

NEMA 1, 3, 4, 6, 7 (Class 1, Division 1, Groups B, C, D),

 

 

 

9 (Class 2, Division 1, Groups E, F, G), 13

 

BX

 

IP67, NEMA 1, 3, 4, 6, 13

 

Approvals:

 

 

 

LSX/BX

 

UL, CSA*

 

BX only

EExd IIC T6 category II 2 GD, SIRA 00ATEX 1037X

 

Contacts:

 

 

 

Electrical ratings A, B

 

Silver

 

Electrical rating C

 

Gold

 

Switching options:

 

 

 

SPDT

 

DPDT

 

Single Pole, Double Throw

Double Pole, Double Throw

 

Snap action contacts (1NC/1NO)

Snap action contacts (2NC/2NO)

 

SPDT Double Break

DPDT Double Break

* Applies only to listings with ½ in NPT or ¾ in NPT

Electrical ratings

10 amps continuous carry. Circuits on any one pole must be the same polarity.

ac Volts

 

 

 

Pilot duty: 600 Vac, 720 VA

Amps at 0.35 Power Factor

 

 

 

Vac

Make

Break

A

120

60

6

SPDT

240

30

3

NEMA

480

15

1.5

A600

600

12

1.2

B

120

30

3

DPDT

240

15

1.5

NEMA

480

7.5

0.75

B600

600

6

0.60

C

250 Vac or 60 Vdc, 0.050 amp max.

 

SPDT/DPDT

 

 

 

dc Volts

 

 

 

Pilot duty: 240 Vdc, 30 watts

Make and Break Amps

 

 

 

Vdc

Inductive

Resistive

A

120

0.25

0.8

SPDT

240

0.15

0.4

B

120

0.25

0.8

DPDT

240

0.15

0.4

C

250 Vac or 60 Vdc, 0.050 amp max.

 

SPDT/DPDT

 

 

 

Operating torque max.:

Standard

0,45 N m (4.0 in lb)

 

Low

0,19 Nm (1.7 in lb)

Pretravel max. (PT):

Standard

15°

 

Low

Overtravel min. (OT):

Standard

60°

 

Low

66°

Differential travel max. (DT):

 

 

Standard SPDT

 

Standard DPDT

 

Low SPDT

 

Low DPDT

Note: Levers are ordered separately (see pages 69- 71 for details)

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Honeywell Switches and Sensors manual IP67, Nema 1, 3, 4, 6, BX only, Silver Electrical rating C Gold, 480 B600