Philips Lighting 913700500881 ...
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Philips Lighting 913700500881 Core & Coil Magnetic HID Ballast for 50W HPS Lamp, 120V

Philips Lighting 913700500881 Core & Coil Magnetic HID Ballast for 50W HPS Lamp, 120V

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Model: 913700500881
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Philips Lighting 913700500881 Core & Coil Magnetic HID Ballast for 50W HPS Lamp, 120V

The Philips Lighting 913700500881 Core & Coil Magnetic HID Ballast is a magnetic high-intensity discharge ballast engineered to operate a 50W HPS (High Pressure Sodium) lamp, ANSI code S68. Built on a traditional core-and-coil design (Base Model 71A7807B), this ballast runs on 120V, 60Hz input power with an R-HPF (Regulated High Power Factor) circuit type and a nominal ballast factor of 1. It is UL Recognized and rated suitable for outdoor use, making it a dependable OEM-style replacement ballast for HID lighting fixtures.

Key Features

  • Lamp Compatibility: Designed to operate a 50W HPS lamp with rated lamp power of 50 W, ANSI code S68.
  • Magnetic Core & Coil Construction: Traditional Magnetic HID ballast type for dependable, long-service-life operation.
  • R-HPF Circuit Type: Regulated High Power Factor circuitry delivers a nominal power factor of 0.9 for efficient current draw.
  • 120V Input Power: Rated for 120V, 60Hz input with nominal input power of 62 W and nominal input current of 0.55 A.
  • Ballast Factor: Nominal ballast factor of 1 for consistent lamp light output.
  • Integral Ignitor: Built-in ignitor (Ignitor Catalog Number: INTEGRAL) simplifies installation without a separate ignitor component.
  • Remote Wiring Capable: Remote wiring configuration allowed, with a maximum ballast-to-lamp distance of 2' when remote wired.
  • Stranded Wire Leads: 12" stranded wire leads for simplified field connections.

Certifications & Compliance

  • UL Recognized (Approval Marks: ULR)
  • UL Insulation Class H(180°C)
  • UL Temperature Code 1029A
  • Suitable for Outdoor Use

Technical Specifications

  • Ansi Code: S68
  • Base Model: 71A7807B
  • Circuit Type: R-HPF
  • Ballast Factor (Nom): 1
  • Power Factor (Nom): 0.9
  • Input Voltage: 120 V
  • Input Frequency: 60 Hz
  • Input Power (Nom): 62 W
  • Input Current (Nom): 0.55 A
  • Lamp Type: 50W HPS
  • Rated Lamp Power: 50 W
  • Ignitor Catalog Number: INTEGRAL
  • Max Ballast Lamp Distance (Remote Wiring): 2'
  • Net Weight (Piece): 0.894 kg
  • Ul Insulation Class: H(180°C)
  • Wire Length By Color: 12"

Typical Applications

  • Outdoor HID Lighting Fixtures
  • 50W HPS Lamp Ballast Replacement
  • Street, Area, and Site Lighting
  • Commercial and Industrial HID Fixture Retrofits
  • Remote-Wired Ballast Enclosures

Why Philips Lighting?

Philips Lighting engineers its Core & Coil HID ballasts, like this 913700500881 model, with UL Recognized components, an integral ignitor, and a regulated high power factor circuit for dependable, code-compliant performance in outdoor and industrial HID lighting applications. The magnetic ballast construction and UL Insulation Class H(180°C) rating support long-term reliability for electrical contractors and lighting maintenance professionals working with 50W HPS fixtures.

Manufacturer Resources

Product Specs

Ansi Code:
S68
Approval Marks:
ULR
Automatic Restart:
No
Ballast Factor Nom :
1
Ballast Type:
Magnetic HID
Base Model:
71A7807B
Capacitor Catalog Number:
7C200M12RA
Capacitor Diameter Oval Dimensions:
1.25 in
Capacitor Height:
2.75 in
Capacitor Requirements:
120V
Capacitor Temperature Rating:
105°C
Capacitor Value:
20 MFD
Circuit Type:
R-HPF
Constant Wattage Deviation:
Within Trapezoid
Ean Upc Product:
7.81087E+11
Hipot Test 1 Minute :
2000 V
Hipot Test 2 Seconds :
2500 V
Ignitor Catalog Number:
INTEGRAL
Ignitor Temperature Rating:
125°C
Input Current Nom :
0.55 A A
Input Current Open Circuit :
0.9 A
Input Current Short Circuit :
1.45-2.2 A
Input Current Starting :
0.95 A
Input Frequency:
60 Hz
Input Power Nom :
62 W
Input Voltage:
120 V
Lamp Type:
50W HPS
Material Nr 12nc :
9.13701E+11
Max Ballast Lamp Distance Remote Wiring:
2'
Net Weight Piece :
0.894 kg
Number Of Lamps:
1 piece/unit
Numerator Packs Per Outer Box:
1
Numerator Quantity Per Pack:
1
Open Circuit Voltage:
120 V
Open Circuit Voltage Test Volts :
114-126 V
Order Code:
9.13701E+11
Order Product Name:
CORE & COIL HID 71A7807001DB
Power Factor Nom :
0.9
Rated Lamp Power:
50 W
Recommended Fuse Value:
3:00 AM
Remote Wiring Configuration Allowed:
Yes
Secondary Short Circuit Current:
1.45-2.2 A
Suitable For Outdoor Use:
Yes
Temperature Marking:
A
Ul Insulation Class:
H(180°C)
Ul Recognized:
Yes
Ul Temperature Code:
1029A
Wire Length By Color:
12"
Wire Striplength:
0.5 mm
Wire Type:
Stranded
Product Core Size:
2 5/8 x 2 3/16
Product Type:
HID Ballast
Department:
Electrical

Philips Lighting 913700500881 – Frequently Asked Questions

1) Will the Philips 913700500881 ballast run my 50W high pressure sodium lamp?
It runs one 50W HPS lamp carrying ANSI ballast code S68. Match the S68 code printed on the lamp, not just the wattage, since a 50W metal halide or mercury lamp uses a different ANSI designation and will not operate correctly on this core-and-coil. Rated lamp power is 50 W, one lamp per unit.
2) Do I need a separate ignitor with this 50W HPS core and coil ballast?
No separate ignitor to buy. The ignitor is integral to the 913700500881, rated to 125 degrees C. What is not integral is the capacitor: the assembly calls for a 20 MFD, 120V capacitor, catalog number 7C200M12RA, 1.25 in oval diameter by 2.75 in tall, rated 105 degrees C. If you are rebuilding a fixture rather than swapping a complete kit, order that capacitor with it.
3) Can this HID ballast be mounted remotely from the fixture?
Remote wiring is allowed, but only up to 2 feet between ballast and lamp. That is short, so it suits a ballast box mounted on the pole or right behind the fixture head, not a ground-level enclosure feeding a fixture up a pole. Leads are 12 inch stranded wire, so plan your splice location accordingly.
4) Will this core and coil fit the ballast tray in my existing fixture?
The core stack on the 913700500881 measures 2 5/8 x 2 3/16, and the piece weighs 0.894 kg. Compare that core size against the unit you are pulling out, since the base model reference for this assembly is 71A7807B and older trays were cut for a specific stack depth.
5) What circuit will a 50W HPS ballast draw, and how should I size the branch and fusing?
Nominal input is 62 W at 0.55 A on 120V, with 0.95 A on starting and 0.9 A open circuit. Short circuit secondary current runs 1.45 to 2.2 A. Those are the numbers to use when you are counting how many heads you can hang on one 120V lighting circuit.
6) Can this magnetic HID ballast be used in an outdoor pole light or wall pack?
Yes, it is rated suitable for outdoor use, with UL Insulation Class H (180 degrees C) and UL temperature code 1029A. It is UL Recognized, meaning it is a component intended for installation inside a listed fixture or enclosure rather than for standalone exposed mounting.
7) What does R-HPF mean on an HID ballast and does it matter for my install?
R-HPF is a regulated high power factor circuit, giving a nominal 0.9 power factor and a ballast factor of 1. Regulated means lamp wattage holds steady through line voltage swings, with constant wattage deviation staying within the trapezoid. The practical payoff on a site lighting run: lower current per fixture than a low power factor ballast, so more heads on the same circuit and steadier light output at the end of a long feeder.
8) Does this ballast restrike the lamp automatically after a power blip?
No automatic restart feature on this unit. Like any HPS ballast, after an interruption the lamp has to cool before it will strike again, so expect the fixture to stay dark for a few minutes rather than coming back instantly.
9) How many ballasts come in a pack when I order the Philips 913700500881?
It ships one per pack, one pack per outer box, so a quantity of one gets you a single core-and-coil ballast with its 12 inch stranded leads. Order by the count of fixtures you are servicing.
How fast can I get the Philips Lighting 913700500881 delivered?
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Can I return it if it doesn’t work for me?
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Does the Philips Lighting 913700500881 come with a warranty?
Absolutely. The Philips Lighting 913700500881 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Philips Lighting 913700500881?
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