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

Safety Limit Switch in Die Cast with Roller Plunger (HLM-RP)

The roller plunger limit switches from IDEM Safety are designed to be mounted for position sensing of moving applications e.g., guard doors, conveyors, machine beds, elevators etc. The internal contact block is positively operated to comply with IEC 60947-5-1.


  • Material: Painted Die-Cast Body / Stainless Steel Roller
  • Actuation: Roller Plunger
  • Ingress Protection: IP67
Part Number Description
174051 HLM Roller Plunger M20 2NC 2NO
174051-GC HLM Roller Plunger M20 2NC 2NO c/w Gold contacts
174052 HLM Roller Plunger ½NPT 2NC 2NO
174053 HLM Roller Plunger QC-M23 2NC 2NO
174054 HLM Roller Plunger M20 3NC 1NO
174055 HLM Roller Plunger ½NPT 3NC 1NO
174056 HLM Roller Plunger QC-M23 3NC 1NO
174057 HLM Roller Plunger M20 4NC
174058 HLM Roller Plunger ½NPT 4NC
174059 HLM Roller Plunger QC-M23 4NC
174060 HLM Roller Plunger M20 1NC 1NO Snap
174061 HLM Roller Plunger ½NPT 1NC 1NO Snap
174062 HLM Roller Plunger QC-M23 1NC 1NO Snap

Note
Gold plated contacts are available for circuits with low power (5V 5mA).

Technical Data
ApprovalscULus
MaterialPainted Die-Cast Aluminum
Roller Material316 Grade Stainless Steel
Enclosure ProtectionIP67
Operating Temperature-25 ... +80 °C
Positive Opening Operation (NC Contacts)18N
Utilization CategoryAC15 A300 240V. 3A
Min Current5V, 5mA, DC
Thermal Current (Ith)10A
Rated Impulse Withstand Volt 2500VAC
Mechanical Life Expectancy2,500,000 Cycles
VibrationIEC 68-2-6, 10-55Hz 0.35mm
Conductor size1.5 sq.mm

Information with regard to UL standards
Type 1 Enclosures. Use 16 - 12AWG copper conductors, rated 75ºC minimum. Intended for same polarity use. Electrical Rating: A300 240V.ac 3A. (6,000 cycles) 240V. 10A. carry only. Wire range: 16AWG – 12AWG Copper Torque 7lb/in (0.8Nm) Earth bonding terminal inside enclosure if required.