NSi Industries 1109A-O - 24 Hour Time Switch 120-277V SPST Outdoo
NSI Industries

1109A-O

UPC: 786261101068

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Technical Bulletin

Contact for Pricing

Overview

The NSI Industries 1109A-O 24-hour time switch provides precise daily ON/OFF control for industrial and commercial applications. Rated for 120-277V AC operation, this SPST switch features DPST contacts for reliable switching of single-phase loads up to 277V. Housed in a NEMA-rated enclosure, it ensures durability in outdoor or harsh environments while maintaining cULus listing for safety compliance. The 24-hour programmable timer allows for consistent daily scheduling without daily adjustments, making it ideal for lighting control, HVAC systems, or equipment automation where repeatable operation is critical. With a compact design and straightforward programming, the 1109A-O eliminates the need for manual switching while reducing energy waste through optimized scheduling. Compatible with standard industrial control panels, this switch integrates seamlessly into existing systems while providing the reliability required for mission-critical applications.
  • 24-hour programmable timer with same-day ON/OFF times
  • Voltage rating: 120-277V AC
  • DPST contacts for reliable switching
  • NEMA-rated enclosure for outdoor/indoor use
  • cULus listed for safety compliance

Specifications

Action
DPST
Base
Screw
Contact Rating
120-277 V
Initiation
Contact
Number Of Pins
12 Pair
Number Of Poles
2
Phase
Single Phase
Package Dimensions (L x W x H)
4.312 IN x 5.25 IN x 8.25 IN
Package Dimensions (L x W x H)
10.9525 cm x 13.335 cm x 20.955 cm
Package Weight (Imperial)
2.300 L
Package Weight (Metric)
1.043 kg

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Frequently Asked Questions about NSi Industries

What technical support does NSi Industries offer?

NSi Industries offers dedicated technical support through their toll-free technical support line at 888.500.4598. They are committed to customer satisfaction and promise to make every reasonable effort to remedy any product or service issues. Additionally, customers can contact their customer service team at 800.321.5847 or email [email protected] for further technical assistance.

What are the key features of NSi Industries products?

NSi Industries products feature exceptional versatility, reliability, and safety across multiple industrial automation categories. Key features include insulation piercing connectors with no wire stripping required, watertight and corrosion-free designs, wide wire range compatibility (from #14 AWG to 750 MCM), and the ability to install on energized conductors. Their product lines like Easy-Tap™ Connectors and TORK® Digital Timers demonstrate advanced capabilities such as turbo spacers, double shear-head bolts, astronomic scheduling, and enhanced switching technologies.

What environmental ratings do NSi Industries products have?

NSi Industries enclosures feature robust environmental ratings, including IEC 60529 IP66 certification, NEMA Type 1, 2, 3, 4, 4X, 12, and 13 ratings, and UL/CSA standards. Their products are designed for both indoor and outdoor applications, with protection against dust, water, corrosion, and extreme temperatures ranging from -40°F to 266°F.

How are NSi Industries products typically installed?

NSi Industries products are typically installed using detailed mechanical and digital wiring diagrams that specify precise connection methods for various voltage configurations (120V, 208V, 240V, 277V, 480V). Installation involves carefully following product-specific wiring schematics, which include clear terminal block connections, ground wire specifications, and phase alignment requirements. Professional electricians and technicians should reference the specific product's wiring diagram to ensure correct installation and electrical compliance.

What industries and applications are NSi Industries products used for?

NSi Industries provides electrical and automation products for diverse industrial applications, including lighting control, electrical enclosures, wire management, connectors, and sensor technologies. Their product lines serve commercial, industrial, and infrastructure markets with solutions for electrical infrastructure, control systems, and safety-critical environments.

What are the main product lines offered by NSi Industries?

NSi Industries offers a comprehensive range of industrial products including TORK® Photocontrols, Polaris™ Lighting Controls, Easy-Twist™ Grounding Solutions, Miniterms, Cable Ties, Connectors, Enclosures, Occupancy Sensors, and Wire Management systems. Their product lines span electrical components, control devices, and industrial automation accessories designed for diverse applications in commercial and industrial settings.

What accessories are available for NSi Industries products?

NSi Industries offers a range of accessories for their product lines, including photocontrol accessories like replacement caps, mounting brackets, and receptacles. Specific accessories include shorting caps, open caps, 3-pin and 7-pin receptacles, and utility mounting brackets for conduit photocontrols. For specialized applications, NSi recommends contacting their customer service team to discuss custom accessory needs.