SN31 Compact Limit Switches

Product catalog summary

Overview: The document provides technical specifications and selection guidance for the SN31 and SN32 series of compact limit switches, which are IP67 water-proof. These switches are available in two sizes: 20mm (SN31) and 25mm (SN32).

Specifications:

Operating Speed: 0.05mm-2m/sec
Operating Frequency: Mechanical: 120 ops/min, Electrical: 30 ops/min
Insulation Resistance: >100MΩ@500V DC
Contact Resistance: <25mΩ
Rated Voltage: 300V AC (EN60947-5-1)
Rated Thermal Current: 10A
Electrical Rating: AC15 A300, DC13 Q300
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: -25~+85°C without ice formation
Humidity: < 95%RH
Degree of Protection: IP67

Electrical Ratings:

AC15 A300: 6A at 120V, 3A at 240V, VA rating: Make 7200, Break 720
DC13 Q300: 0.55A at 125VDC, 0.27A at 250VDC

Designations and Utilization Categories: The switches are categorized under IEC 947-5-1 / EN 90947-5-1 standards.

Contact Blocks: Available in snap action and slow action configurations, with options for 1NO+1NC contacts.

Mounting and Connection Options:

20mm and 25mm mounting options
Cable exits: side or bottom
M12 connectors: 4 pin or 5 pin, side or bottom exit

Order Codes: Various order codes are provided for different configurations of the SN31 and SN32 series, indicating the type of contact block and connection style.

Catalog excerpts

International, LLC COMPACT LIMIT SWITCHES (IP67 Water-Proof) SN31 SERIES (20mm) and SN32 SERIES (25mm) Selection Guide: Head Style Snap Action Slow Action Cable side exit Cable bottom exit M12 connector side exit 4 pin M12 connector bottom exit 4 pin M12 connector side exit 5 pin 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 Designation & Utilization Category AC15 DC13 IEC 947-5-1 / EN 90947-5-1 Rated operational current Ie (A) at rated operational voltage Ue 120V 240V 380V 480V 500V 6 Snap Action VA rating Make Break Slow Action

Open the catalog to page 1

International, LLC COMPACT LIMIT SWITCHES (IP67 Water-Proof) SN31 SERIES (20mm) and SN32 SERIES (25mm) Order Code Order Code Order Code Contact block snap action slow action snap action slow action Order Code Contact block Contact block snap action slow action Contact block snap action slow action Order Code Order Code Contact block snap action slow action Contact block snap action slow action Order Code Order Code Contact block snap action slow action Contact block snap action slow action

Open the catalog to page 2

International, LLC COMPACT LIMIT SWITCHES (IP67 Water-Proof) SN31 SERIES (20mm) and SN32 SERIES (25mm) 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 Order Code snap action slow action Contact block snap action slow action Order Code Contact block snap action slow action Contact block snap action slow action

Open the catalog to page 3

International, LLC COMPACT LIMIT SWITCHES (IP67 Water-Proof) SN31 SERIES (20mm) and SN32 SERIES (25mm) Basic Body dimension: Suffix: -A (cable side exit) Suffix: -B (cable bottom exit) Suffix: -C (M12 quick connector side exit 4 pin) Suffix: -E (M12 quick connector side exit 5 pin) Suffix: -D (M12 Quick Connector bottom exit 4 pin) Suffix: -F (M12 Quick Connector bottom exit 5 pin)

Open the catalog to page 4

SN31 Compact Limit Switches

SN31 Compact Limit Switches

Catalog excerpts

All SUNS catalogs and technical brochures