SM31 Safety Limit Switches

Product catalog summary

Overview: The document provides technical specifications and ordering information for the SM31 and SM32 series of compact safety limit switches, which feature a modular design and IP67 protection rating. These switches are available in two sizes: 20mm (SM31 series) and 25mm (SM32 series).

Specifications: The switches are designed with various contact configurations, including 1NO/1NC, 2NO, and 2NC options. They support both snap action and slow action mechanisms. The electrical ratings include a rated voltage of 300V AC, a rated thermal current of 5A, and specific ratings for AC15 (B300) and DC13 (R300) categories. The switches have a mechanical operating speed of 0.05mm to 2m/sec and can perform 120 mechanical operations per minute and 30 electrical operations per minute. They are designed to withstand dielectric strengths of 1000VAC for current-carrying parts and 2500VAC for non-current-carrying parts.

Environmental Conditions: The operating temperature range is -25 to +85 degrees Celsius without ice formation, and they can operate in humidity levels of less than 95% RH. The switches are rated IP67, indicating high resistance to dust and water ingress.

Design and Connectivity: The switches feature a modular design with options for different head styles and mounting configurations. They can be connected via M12 connectors with side or bottom exits, available in 4-pin or 5-pin configurations, or with a 2-meter cable. The contact blocks are available in both snap action and slow action types.

Ordering Information: The document lists various order codes for different configurations of the SM31 and SM32 series, detailing the specific contact arrangements and action types available for each model.

Catalog excerpts

International, LLC Compact Safety Limit Switches (Modular Design, IP67) SM31 SERIES (20mm) and SM32 SERIES (25mm) Selection Guide: Snap Action Slow Action Head Style Short Lever Q1 M12 connector side exit 4 pin Q2 M12 connector bottom exit 4 pin Q3 M12 connector side exit 5 pin Q4 M12 connector bottom exit 5 pin Specification Operating Speed 0.05mm-2m/sec Mechanical: 120ops/min Electrical: 30 ops/min Operating Frequency Insulation Resistance Contact Resistance Rated Voltage Rated Thermal Current Electrical Rating Dielectric Strength 1000VAC for 1 min between current carrying parts 2500VAC for 1 min between non-current carrying parts Service Life Mechanically 1.0 x107 (operations) Electrically 5 x105 (operations) Operating Temperature Electrical Ratings Snap Action Snap Action Slow Action Slow Action Slow Action IEC 947-5-1 / EN 90947-5-1 Rated operational current Ie (A) at rated operational voltage Ue Designation & Utilization Category

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International, LLC Compact Safety Limit Switches (Modular Design, IP67) SM31 SERIES (20mm) Order Code Order Code slow action snap action slow action snap action slow action slow action Contact block snap action slow action Contact block snap action slow action Order Code Contact block snap action Order Code Contact block Contact block Order Code snap action Contact block Order Code Order Code Contact block snap action slow action Contact block snap action slow action

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International, LLC Compact Safety Limit Switches (Modular Design, IP67) SM31 SERIES (20mm) Order Code snap action slow action snap action slow action snap action slow action slow action Contact block snap action slow action Contact block snap action slow action Order Code Contact block snap action Order Code Contact block Order Code Contact block Order Code Contact block Order Code Order Code Order Code Contact block snap action slow action Contact block snap action slow action

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International, LLC Compact Safety Limit Switches SM31N SERIES (20mm) Order Code Order Code Order Code Order Code Order Code Contact block snap action slow action Order Code Contact block snap action slow action Order Code Contact block snap action slow action Order Code Contact block snap action slow action Contact block snap action slow action Contact block snap action slow action snap action slow action snap action slow action Contact block Contact block

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International, LLC Compact Safety Limit Switches SM31N SERIES (20mm) Order Code Order Code Order Code Order Code Order Code Contact block snap action slow action Order Code Contact block snap action slow action Order Code Contact block snap action slow action Order Code Contact block snap action slow action Contact block snap action slow action Contact block snap action slow action Contact block snap action slow action Contact block snap action slow action

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International, LLC Compact Safety Limit Switches (Modular Design, IP67) SM32 SERIES (25mm) Order Code snap action slow action Order Code snap action slow action snap action slow action snap action slow action Contact block snap action slow action Order Code Contact block Contact block Order Code Contact block Order Code Order Code Order Code Contact block Contact block snap action slow action Order Code Contact block snap action slow action Contact block snap action slow action

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SM31 Safety Limit Switches

SM31 Safety Limit Switches

Catalog excerpts

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