Leading Manufacturer of Safety Interlock Switches and Machine Guard Safety Switch Devices for Automation and Process Safety

Guardian Line Heavy Duty Safety Rope Pull Switches with Dual Head and Indication (GLHD with LED)

The GLHD heavy duty safety rope pull switch has been designed to protect long conveyor lengths. The dual head is capable of protecting up to 250m and shorter rope spans up to 200m can be achieved using a single switch. This makes for a cost-effective solution, as it reduces electrical wiring runs and the total number of switches required.


  • Body Material: Die-Cast Metal; Painted Yellow
  • Ingress Protection: IP67
  • Contacts: 4NC + 2NO
  • LED Voltage: 24Vdc, 110Vac or 230Vac
  • Cable Length (1 Switch): 100m left / 100m right
  • Cable Length (3 Switches): 125m left / 125m right
Part No. Part Description
141001-AS GLHD M20 4NC 2NO E-Stop & LED Red & Green Steady 24V
141001-BS GLHD M20 4NC 2NO E Stop & LED 110V Steady Red & Green
141001-CS GLHD M20 4NC 2NO E Stop & Steady LED 230V
141001A GLHD M20 4NC 2NO E Stop & LED 24V
141001A-FZ GLHD M20 4NC 2NO E Stop & LED 24V -40°
141001AS-FZ GLHD M20 4NC 2NO E-Stop & LED Steady 24V -40°
141001B GLHD M20 4NC 2NO E Stop & LED 110V
141001B-FZ GLHD M20 4NC 2NO E Stop & LED 110V -40°
141001C GLHD M20 4NC 2NO E Stop & LED 230V
141001C-FZ GLHD M20 4NC 2NO E Stop & LED 230V -40°
141002A GLHD ½NPT 4NC 2NO E Stop & LED 24V
141002A-FZ GLHD ½NPT 4NC 2NO E Stop & LED 24V – -40°
141002B GLHD ½NPT 4NC 2NO E Stop & LED 110V
141002B-FZ GLHD ½NPT 4NC 2NO E Stop & LED 110V – -40°
141002C GLHD ½NPT 4NC 2NO E Stop & LED 230V
141002C-FZ GLHD ½NPT 4NC 2NO E Stop & LED 230V – -40°
141029-AS GLHD M20 4NC 2NO LED Steady Red & Green 24V
141029A GLHD M20 4NC 2NO LED 24V
141029A-FZ GLHD M20 4NC 2NO LED 24V – -40°
141029A-FZ-GC GLHD M20 4NC 2NO LED 24V -40° c/w gold contacts
141029AS-FZ GLHD M20 4NC 2NO LED Steady 24V – -40°
141029B GLHD M20 4NC 2NO LED 110V
141029B-FZ GLHD M20 4NC 2NO LED 110V – -40°
141029C GLHD M20 4NC 2NO LED 230V
141029C-FZ GLHD M20 4NC 2NO LED 230V – -40°
141030A GLHD ½NPT 4NC 2NO LED 24V
141030A-FZ GLHD ½NPT 4NC 2NO LED 24V – -40°
141030B GLHD ½NPT 4NC 2NO LED 110V
141030B-FZ GLHD ½NPT 4NC 2NO LED 110V – -40°
141030C GLHD ½NPT 4NC 2NO LED 230V
141030C-FZ GLHD ½NPT 4NC 2NO LED 230V – -40°

Note
FZ models for temperatures down to -40°C.

Technical Data
ApprovalsTUV, cULus
TechnologySafety Rope Pull Switch, Dual Activation
Housing MaterialYellow Painted Die-Cast Metal
Operating Temperature-25 ... +80 °C (-40C. for -FZ versions)
Enclosure ProtectionIP67
Rope SpansUp to 250m
Rope Type4.0mm Outside Dia. Steel inner-PVC sheath
Mounting4 x M5
Torque settingsMounting M5 4.0 Nm Lid T20 Torx M4 1.5 Nm Terminals 1.0 Nm
Vibration resistance10-500Hz 0.35mm
Shock resistance15g 11ms
Tension Force (typical mid setting) 130N
Typical Operating Force (Rope pulled)< 125N. < 300mm Deflection
Safety Contact typeIEC 60947-5-1 Double break Type Zb
TerminationClamp up to 2.5 sq. mm conductors
RatingUtilisation Category : AC15
Operational RatingAC15 A300 240V. 3A /120V 6A. ac 24V. 2.5A dc inductive
Thermal Current (Ith)10A
Rated Insulation Voltage (Ui)500V
Withstand Voltage (Uimp)2500V
Short Circuit Overload ProtectionFuse Externally 10A. (FF)

Safety Classification and Reliability Data
Mechanical Reliability B10d1.5 x 10 6 operations at 100mA load
ISO 13849-1up to Category 4 with Safety Relay
ISO 13849-1up to PLe depending upon system architecture
EN 62061up to SIL3 depending upon system architecture
Safety Data - Annual Usage 8 cycles per hour / 24 hours per day / 365 days MTTFd 214 years

Information with regard to UL 508
Type 1 Enclosures. Temperature rating 80C. Use 16 - 12AWG copper conductors, rated 75ºC only. Intended for same polarity use and one polymeric conduit connection. Electrical Rating: A300 240V.ac 3A. (6,000 cycles) 120V. 60A. Making 6A. Breaking PF >0.38 (100,000 cycles) 240V. 10A. carry only. Wire range: 16AWG – 12AWG Copper Torque 7lb/in (0.8Nm) LED powered by LVLC or Class 2 only. Earth bonding terminal inside enclosure if required.