Philips Lighting 913700537609 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$288.30
$238.30
Philips Lighting 913700537609 Core & Coil Magnetic HID Ballast, 50W HPS, 120/277V

Philips Lighting 913700537609 Core & Coil Magnetic HID Ballast, 50W HPS, 120/277V

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Model: 913700537609
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Philips Lighting 913700537609 Core & Coil Magnetic HID Ballast, 50W HPS, 120/277V

The Philips Lighting 913700537609 is a Core & Coil Magnetic HID ballast engineered to power 50W HPS lamps rated ANSI code S68. This HX-HPF (High Reactance-High Power Factor) circuit ballast accepts 120/277V input at 60Hz, with a 66W nominal input power and 0.9 nominal power factor. UL Recognized and suitable for outdoor use, this ballast delivers reliable, code-compliant performance in commercial and industrial HID lighting fixtures.

Key Features

  • Core & Coil Construction: Magnetic HID ballast with an HX-HPF circuit type for stable 50W HPS lamp operation.
  • Input Rating: 120/277V input voltage, 60Hz frequency, 66W nominal input power, and 0.9 nominal power factor.
  • Remote Wiring: Remote wiring configuration allowed, with a maximum ballast-to-lamp distance of 2'.
  • Outdoor Rated: Suitable for outdoor use in HID lighting fixtures exposed to the elements.
  • Lead Wires: 12" stranded lead wires for straightforward fixture wiring connections.
  • Lamp Compatibility: Designed specifically for 50W HPS lamps carrying ANSI code S68.

Certifications & Compliance

  • UL Recognized (Approval Marks: ULR)
  • UL Insulation Class H(180°C), UL Temperature Code 1029A

Technical Specifications

  • Ansi Code: S68
  • Approval Marks: ULR
  • Automatic Restart: No
  • Ballast Factor Nom: 1
  • Base Model: 71A7801
  • Max Ballast Lamp Distance Remote Wiring: 2'
  • Numerator Packs Per Outer Box: 1
  • Numerator Quantity Per Pack: 1
  • Order Product Name: CORE & COIL HID 71A7801001D
  • Power Factor Nom: 0.9
  • Remote Wiring Configuration Allowed: Yes
  • Suitable For Outdoor Use: Yes
  • Temperature Marking: A/A
  • Ul Recognized: Yes
  • Wire Length By Color: 12"

Typical Applications

  • Outdoor HID Area & Security Lighting
  • HPS Fixture Ballast Replacement
  • Commercial & Industrial Outdoor Lighting
  • Retrofit Applications for Existing HID Fixtures

Why Philips Lighting?

Philips Lighting Core & Coil HID ballasts combine proven magnetic reliability with UL Recognized construction, delivering consistent 50W HPS lamp performance for demanding outdoor and industrial lighting applications. Built with an HX-HPF circuit and rated for 120/277V input, this ballast is engineered to keep commercial HID fixtures running dependably.

Manufacturer Resources

Product Specs

Ansi Code:
S68
Approval Marks:
ULR
Automatic Restart:
No
Ballast Factor Nom :
1
Ballast Type:
Magnetic HID
Base Model:
71A7801
Capacitor Catalog Number:
7C050L30RA
Capacitor Diameter Oval Dimensions:
1.25 in
Capacitor Height:
2.25 in
Capacitor Requirements:
280V
Capacitor Temperature Rating:
105°C
Capacitor Value:
5 MFD
Circuit Type:
HX-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:
LI551-H4
Ignitor Temperature Rating:
105°C
Input Current Nom :
0.61/0.26 A A
Input Current Open Circuit :
1/0.45 A
Input Current Short Circuit :
0.6-0.8/0.25-0.35 A
Input Current Starting :
0.65/0.3 A
Input Frequency:
60 Hz
Input Power Nom :
66 W
Input Voltage:
120/277 V
Lamp Type:
50W HPS
Material Nr 12nc :
9.13701E+11
Max Ballast Lamp Distance Remote Wiring:
2'
Net Weight Piece :
2.110 kg
Number Of Lamps:
1 piece/unit
Numerator Packs Per Outer Box:
1
Numerator Quantity Per Pack:
1
Open Circuit Voltage:
125 V
Open Circuit Voltage Test Volts :
115-135 V
Order Code:
9.13701E+11
Order Product Name:
CORE & COIL HID 71A7801001D
Power Factor Nom :
0.9
Rated Lamp Power:
50 W
Recommended Fuse Value:
3/1 A
Remote Wiring Configuration Allowed:
Yes
Secondary Short Circuit Current:
1.3-1.9 A
Suitable For Outdoor Use:
Yes
Temperature Marking:
A/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:
3 X 4 (2 coil)
Product Type:
HID Ballast
Department:
Electrical

Philips Lighting 913700537609 – Frequently Asked Questions

1) Will the Philips 913700537609 ballast run my 50W high pressure sodium lamp?
It's built for one 50W HPS lamp carrying ANSI code S68, one lamp per unit. If the lamp in your fixture is marked with a different ANSI designation (S68 is specific to 50W HPS), this kit won't drive it correctly. Rated lamp power is 50 W and the ballast factor is 1, so you get full rated lumen output from the lamp.
2) Can I use this HPS ballast on both 120V and 277V circuits?
Yes. The core and coil assembly is dual-voltage, 120/277 V at 60 Hz, so the same part works on either supply. Nominal input current differs by tap: 0.61 A at 120 V and 0.26 A at 277 V. Nominal input power is 66 W and power factor is 0.9. Pick the correct primary lead for the voltage you're feeding.
3) Does this 50W HPS core and coil ballast come with the capacitor and ignitor, or do I order those separately?
An HX-HPF high pressure sodium circuit needs a capacitor and an ignitor to operate, and Philips specifies both for this assembly: capacitor 7C050L30RA, 5 MFD, 280V rated, 105 degree C, measuring 1.25 in diameter by 2.25 in height, and ignitor LI551-H4, also 105 degree C rated. If you are rebuilding a fixture and reusing the old components, match those catalog numbers and ratings.
4) How far from the lamp can I mount this ballast if I'm remote-mounting it in a pole base?
Remote wiring is allowed, but only up to 2 feet of ballast-to-lamp distance. That rules out pole-base mounting with the lamp at the top of the pole. For a remote ballast at any real distance you need a ballast specified for long-run remote mounting. Lead wires supplied are 12 inch stranded, with a 0.5 mm strip length.
5) Is this ballast OK for an outdoor wall pack or area light?
Yes, it's rated suitable for outdoor use in HID fixtures. Insulation class is H (180 degrees C) with UL temperature code 1029A and an A/A temperature marking. Note the capacitor and ignitor are 105 degree C parts, so the components in the housing set the practical thermal limit.
6) What fuse should I use on the line side of this 50W HPS ballast?
Philips recommends a 3 A fuse on a 120 V feed and 1 A on 277 V. For sizing, nominal input current is 0.61 A at 120 V / 0.26 A at 277 V, starting current is 0.65/0.3 A, and open circuit draw is 1/0.45 A, so the fuse has to ride through starting without nuisance opening.
7) Is this a UL Listed ballast or UL Recognized, and does that matter for my inspection?
It carries UL Recognized status with the ULR approval mark. Recognized components are evaluated for use inside a listed end product, meaning this core and coil is intended to be installed in a luminaire rather than sold as a standalone listed appliance. For a fixture rebuild or an OEM assembly that is the normal designation.
8) Will this ballast restrike a hot HPS lamp automatically after a power blip?
No. Automatic restart is not a feature of this assembly. After an interruption the HPS lamp has to cool before it will restrike, so expect the usual sodium restrike delay. If your application needs instant light after an outage, plan on a separate quartz restrike or emergency fixture.
9) What core size is this Philips HID ballast, and how heavy is it for retrofitting into an existing housing?
Core size is 3 x 4 with a 2 coil build, and net weight is 2.110 kg per piece. Those two figures are what to check against the ballast tray in your existing fixture before you commit, since core and coil footprints vary between the brands that may be in there now.
10) What part number do I give my distributor for this Philips core and coil HID ballast?
Order it as Philips 913700537609. The base model behind it is 71A7801, and Philips lists it as CORE & COIL HID 71A7801001D. If your old ballast is stamped 71A7801, this is the matching current assembly.
11) What is the open circuit voltage on this HX-HPF ballast, and what should it read on a bench test?
Open circuit voltage is 125 V nominal, with an acceptable test window of 115 to 135 V. Secondary short circuit current is 1.3 to 1.9 A, and short circuit input current is 0.6-0.8 A at 120 V / 0.25-0.35 A at 277 V. Those are the numbers to compare against if you are troubleshooting a fixture that won't strike. Dielectric ratings are 2000 V for 1 minute and 2500 V for 2 seconds.
12) How many ballasts come in a pack?
One. Quantity per pack is 1 and there is 1 pack per outer box, so each order line is a single core and coil assembly with its capacitor and ignitor specification. Multi-fixture jobs need one unit per lamp, since each drives a single 50W HPS lamp.
How fast can I get the Philips Lighting 913700537609 delivered?
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Can I return it if it doesn’t work for me?
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Does the Philips Lighting 913700537609 come with a warranty?
Absolutely. The Philips Lighting 913700537609 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 913700537609?
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