HLM-SS-Ex Stainless Steel 316 Explosion Proof Limit Switches

Product catalog summary

Overview: The document provides detailed information on IDEM's HLM-SS range of heavy-duty Stainless Steel 316 Safety Limit Switches. These switches are designed for position sensing in various moving applications such as guard doors, conveyors, machine beds, and elevators. They are suitable for high-temperature washdowns with detergent.

Applications: The HLM-SS switches are used in environments requiring robust position sensing solutions, particularly where high mechanical durability and resistance to harsh conditions are necessary.

Features:

Constructed from heavy-duty Stainless Steel 316.
Positive opening NC safety contact compliant with EN60947-5-1.
High mechanical life expectancy of over 5,000,000 cycles.
Industry-standard mounting according to EN50041.
Available with a wide range of actuator heads.

Operation: The switches operate through the sliding actuation of moving objects, which deflects the switch plungers, rollers, or levers. It is crucial that the moving object does not completely pass over the switch actuators to prevent damage or malfunction.

Contact Blocks: These provide positively operated safety contacts with optional explosion-proof versions. They comply with standards such as EN60947-5-1 and ISO14119.

Technical Specifications:

Mechanical Reliability: B10d 2.5x10⁶ operations at 100mA load.
Safety Classification: Up to PLe (ISO13849-1) and SIL3 (EN62061) depending on system architecture.
Annual Usage: 8 cycles per hour, 24 hours per day, 365 days per year.
Proof Test Interval: 35 years.
MTTFd: 356 years.
Enclosure Protection: IP67/IP69K.
Operating Temperature: -25°C to +80°C.
Electrical Life Expectancy: 100,000 cycles at full load.

Product Variants: The document lists various models of the HLM-SS switches, including Short Roller Lever, Roller Plunger, Pin Plunger, Spring Lever, Telescopic Spring Lever, Lever Arm, and Adjustable Roller Lever. Each variant has specific sales numbers and configurations, including explosion-proof models and options for gold-plated contacts for low power circuits.

Catalog excerpts

HLM-SS-Ex Stainless Steel 316 Explosion Proof Limit Switches-1

SECTION 24 SAFETY LIMIT SWITCHES Safety Limit Switches Type: HLM-SS (S/Steel 316) APPLICATIONS: IDEM’s HLM-SS range of heavy duty Stainless Steel 316 Safety Limit Switches have been designed to be mounted for position sensing of moving applications e.g. guard doors, conveyors, machine beds and elevators. They are available with an extensive range of actuator heads and can be supplied with either slow break or snap action contacts. The full HLM-SS range is suitable for high temperature wash down at high temperature with detergent . Heavy duty Stainless Steel 316 bodies Positive opening NC safety contact to EN60947-5-1 High mechanical life over 5,000,000 cycles Industry standard mounting to EN50041 Large choice of actuator heads available OPERATION: Operation of IDEM Safety Limit Switches is achieved by a sliding actuation of the moving object to cause deflection of the switch plungers, rollers or levers. For safety applications it is important that the moving object does not pass completely over the switch actuators so as to either cause damage to the actuator or allow it to return to its original position. IP69K CONTACT BLOCKS: Contact blocks provide positively operated safety contacts to EN60947-5-1 with optional Explosion Proof versions available. EXPLOSION PROOF MODELS ALSO AVAILABLE. SEE MODELS/PART NUMBERS MARKED WITH EX Standards: ISO14119 EN60947-5-1 EN60204-1 ISO13849-1 EN62061 UL508 Safety Classification and Reliability Data: Mechanical Reliability B10d 2.5x106 operations at 100mA load ISO13849-1 Up to PLe depending upon system architecture EN62061 Up to SIL3 depending upon system architecture Safety Data - Annual Usage 8 cycles per hour/24 hours per day/365 days PFHd 3.44x10-8 Proof Test Interval (Life) 35 years MTTFd 356 years Positive Opening Operation NC contacts Utilisation Category AC15 A300 240V 3A Minimum Current 5V 5mA dc Thermal Current (lth) 10A Rated Insulation Voltage 300Vac Rated Impulse Withstand 2500Vac Maximum Switching Speed 250mm/sec Maximum Switching Frequency 6,000 operations per hour Case Material Stainless Steel 316 Enclosure Protection IP67/IP69K Operating Temperature -25C to +80C Mechanical Life Expectancy 5x10-6 cycle min. Electrical Life Expectancy 100,000 cycle min (at full load) Vibration IEC68-2-6 10-55Hz 0.35mm Conductor Size 1.5mm2 Fixing M

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