Suzhou Arphu Industrial Co.,Ltd
Conveyor Two-way Pull Cord Switch
Conveyor Two-way Pull Cord SwitchTwo way pull cord switch is a safety switch that provides a quick positive shut off of dangerous equipment in emergencies or normal operation.

Two way pull cord switch is a safety switch that provides a quick positive shut off of dangerous equipment in emergencies or normal operation.


General details

Pull cord switch is used for emergency stop of conveyor machines.


Technical info

Contact Capacity: AC380C 2A

Insulation voltage: AC1000V, testing one minute

Service Life: 10,000 times

Output contact: A group normally opens, the other group normally closed. One group converts switch contact;

Ambient temperature: -40 ℃ to +60 ℃

Relative temperature: not more than 90%

Atmospheric pressure: 80 ~ 110 Kpa

Altitude: < 2,000 M

Protection Level: IP65

Action angle: 15° Limit angle 75°


Product range

Model

Contact

capacity

Contact quantity

Action

power

Restoration
type

Action

trip

Limit
trip

Protection
Level

Weight

Normal   Open  

Normal

closed

LSKG-I

≤380V
≤3A

1

1

12±2 kg

Automatic

Restoration

15±2mm

20±2mm

IP65

1.2 kg

LSKG-II

2

2

Manual

Restoration

IP65

1.25 kg


Working principle

As occurring emergency of belt conveyor machine, pull steel cord of pull cord switches to realize emergency stop or give alarm signal.

There are two model of pull cord switch, one is automatic restoration, the other one is manual restoration.


Structure features

1. Aluminum alloy shell reaches high strength, lightweight, shell of pull cord switch can reach IP 67, it can be worked under extremes environment for long time.

2. Large capacity of electric shock, moves sensitive and reliable.


Usage and installations

Install pull cord switches every 30 meters on frames of conveyor machines, linked by steel cord through ring-pull of pull cord switches, adjust proper steel cord pressure to ensure restoration of pull cord switches.


Connection cables

Pull cord switches are equipped three-core cable, and mark No.1, No.2 and No.3 cables. No.1 and No.2 are normal open contact, No.1 and No.3 are normal close contact, if two normal open and two normal close, please advise it before ordering.


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