NSi Industries 5403A - Contactor 120V with Photocontrol
NSI Industries

5403A

UPC: 786261810120


Documents & Media
Specification Sheet

Contact for Pricing

Overview

The NSI Industries 5403A is a 3-pole 120V AC contactor with integrated TurnLock photocontrol for automated dusk-to-dawn lighting. Designed for heavy-duty outdoor applications, it delivers 40A resistive load capacity, 30A tungsten rating, and supports 3HP @ 120V or 7.5HP @ 240V motor loads. The photocontrol features instant ON and 3-5 second delay OFF to prevent false switching from passing vehicles or transient light. Housed in a NEMA Type 3R enclosure with grey enamel finish, it meets UL773 and ANSI C136.10 standards. Ideal for street lighting, parking lots, building perimeter illumination, and outdoor signage where reliable, weather-resistant switching is required. The 3PST switch type and 3-prong turn-lock receptacle ensure compatibility with standard photocontrols. With a power consumption of 3 watts during daylight, it provides energy-efficient operation. The conformal-coated cadmium sulphide photocell resists moisture and airborne contaminants, responding to light spectra similar to human vision. The heavy-duty die-cast zinc housing and gasketed design maximize weather protection.
  • 3-pole 120V AC contactor with integrated TurnLock photocontrol for automated lighting
  • 40A resistive load capacity, 30A tungsten rating, supports 3HP @ 120V or 7.5HP @ 240V motor loads
  • Instant ON and 3-5 second delay OFF to prevent false switching from transient light
  • NEMA Type 3R enclosure with grey enamel finish for outdoor weather resistance
  • Meets UL773 and ANSI C136.10 standards for photocontrols and heavy-duty switching

Specifications

Action
DPST
Application
NSI
Contact Configuration
DPST
Contact Rating
120 Volt
Enclosure
Nema 3R Outdoor
Initiation
Contact
Number Of Poles
2
Phase
Single
Size
L=4.750 - W= 5.500 - H=8.500 IN
Special Features
6000 Watt Contactor With 3 Prong Turn Lock Receptacle
Standard
UL 773
Type
6000 Watt Contactor With Turn Lock Photocontrol
Package Dimensions (L x W x H)
4.75 IN x 5.5 IN x 8.5 IN
Package Dimensions (L x W x H)
12.065 cm x 13.97 cm x 21.59 cm
Package Weight (Imperial)
4.302 L
Package Weight (Metric)
1.951 kg

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Frequently Asked Questions

Are the connectors UL listed?

Yes, all connectors are UL 486A/B listed.

What is the temperature rating for the connectors?

The connectors have a temperature rating of 90 °C.

What is the maximum voltage for these connectors?

The connectors are rated for a maximum voltage of 600V, with a maximum of 2000V per UL486B.

Are the connectors compatible with copper conductors?

Yes, the connectors are designed for use with both copper and aluminum conductors.

What materials are the connectors made from?

The connectors are made of 6061T-6 aluminum alloy and are electro-tin plated for low contact resistance.

What is the wire range for the connectors?

The wire range varies by connector model, with options from 6 AWG to 1000 MCM.

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.