Philips Lighting 913710414701 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$360.53
$326.04
Philips Lighting 913710414701 Core & Coil CWA HID Ballast for 250W HPS Lamps

Philips Lighting 913710414701 Core & Coil CWA HID Ballast for 250W HPS Lamps

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Model: 913710414701
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Philips Lighting 913710414701 Core & Coil CWA HID Ballast for 250W HPS Lamps

The Philips Lighting 913710414701 Core & Coil CWA HID Ballast is a magnetic HID ballast engineered to power 250W HPS lamps rated ANSI S50 using a CWA (constant wattage autotransformer) circuit design. It operates on multi-tap 120/208/240/277/480V input at 60 Hz, drawing 300W nominal input power at a 0.9 power factor, and is UL Recognized (ULR) for outdoor HID lighting applications.

Key Features

  • Lamp Compatibility: Matched to 250W HPS lamps rated ANSI S50 for reliable starting and stable operation.
  • CWA Circuit Design: Magnetic HID ballast delivers constant wattage regulation within trapezoid deviation limits for consistent lamp performance.
  • Multi-Tap Input Voltage: Operates on 120/208/240/277/480V at 60 Hz with 300W nominal input power and a 0.9 power factor for flexible field wiring.
  • Remote Mounting Capability: Supports remote wiring configuration with a maximum ballast-to-lamp distance of 2'.
  • Included Components: Ships complete with ignitor LI501-H4 and a 35 MFD, 240V capacitor (7C350P24RA).
  • Core & Coil Construction: 4 x 4 (2 coil) core size housing 1 lamp per unit for compact fixture integration.
  • Outdoor Rated: Suitable for outdoor use in HID area and site lighting fixtures.

Certifications & Compliance

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

Technical Specifications

  • ANSI Code: S50
  • Circuit Type: CWA
  • Base Model: 71A8251
  • Automatic Restart: No
  • Ballast Factor (Nom): 1
  • Power Factor (Nom): 0.9
  • Capacitor Height: 3.7 in
  • Capacitor Diameter (Oval Dimensions): 1.65 in
  • Max Ballast-Lamp Distance (Remote Wiring): 2'
  • Remote Wiring Configuration Allowed: Yes
  • Suitable For Outdoor Use: Yes
  • UL Recognized: Yes
  • Wire Type: Stranded
  • Wire Length By Color: 12"
  • Wire Striplength: 0.5 mm

Typical Applications

  • HID Fixture Ballast Replacement for 250W HPS Lamps
  • Outdoor Area, Site, and Pole Lighting
  • Street and Parking Lot Lighting Retrofits
  • Industrial and Commercial HID Lighting Fixtures

Why Philips Lighting?

Philips Lighting Core & Coil HID ballasts combine UL Recognized construction with a CWA circuit design and Insulation Class H (180°C) rating to support dependable performance in demanding outdoor HID lighting systems. The multi-tap 120/208/240/277/480V input, plus the included ignitor and capacitor, simplify code-compliant installation for professional HID fixture replacement projects.

Manufacturer Resources

Product Specs

Ansi Code:
S50
Approval Marks:
ULR
Automatic Restart:
No
Ballast Factor Nom :
1
Ballast Type:
Magnetic HID
Base Model:
71A8251
Capacitor Catalog Number:
7C350P24RA
Capacitor Diameter Oval Dimensions:
1.65 in
Capacitor Height:
3.7 in
Capacitor Requirements:
240V
Capacitor Temperature Rating:
105°C
Capacitor Value:
35 MFD
Circuit Type:
CWA
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:
LI501-H4
Ignitor Temperature Rating:
105°C
Input Current Nom :
2.66/1.54/1.32/1.16/0.66 A A
Input Current Open Circuit :
1.82/1.1/0.92/0.83/0.45 A
Input Current Short Circuit :
0.81-1.22/0.44-0.66/0.39-0.58/0.32-0.49/0.2-0.3 A
Input Current Starting :
1.32/0.82/0.66/0.56/0.32 A
Input Frequency:
60 Hz
Input Power Nom :
300 W
Input Voltage:
120/208/240/277/480 V
Lamp Type:
250W HPS
Material Nr 12nc :
9.1371E+11
Max Ballast Lamp Distance Remote Wiring:
2'
Net Weight Piece :
5.612 kg
Number Of Lamps:
1 piece/unit
Numerator Packs Per Outer Box:
1
Numerator Quantity Per Pack:
1
Open Circuit Voltage:
188 V
Open Circuit Voltage Test Volts :
169-207 V
Order Code:
9.1371E+11
Order Product Name:
CORE & COIL HID 71A8251001D
Power Factor Nom :
0.9
Rated Lamp Power:
250 W
Recommended Fuse Value:
7/4/4/3/2 A
Remote Wiring Configuration Allowed:
Yes
Secondary Short Circuit Current:
3.69-4.51 A
Suitable For Outdoor Use:
Yes
Temperature Marking:
C/C/B/B/B
Ul Insulation Class:
H(180°C)
Ul Recognized:
Yes
Ul Temperature Code:
1029C
Wire Length By Color:
12"
Wire Striplength:
0.5 mm
Wire Type:
Stranded
Product Core Size:
4 x 4 (2 coil)
Product Type:
HID Ballast
Department:
Electrical

Philips Lighting 913710414701 – Frequently Asked Questions

1) Will the Philips 913710414701 ballast run a 250W metal halide lamp, or only high pressure sodium?
High pressure sodium only. The Philips 913710414701 core and coil kit is matched to a 250W HPS lamp carrying ANSI code S50, and it ships with an LI501-H4 ignitor, which an HPS lamp needs to strike. A 250W metal halide lamp uses a different ANSI designation and a different ballast circuit, so putting one on this kit gets you wrong lamp wattage and short lamp life.
2) What supply voltages can this 250W HPS core and coil ballast be wired to?
It is a multi-tap unit: 120, 208, 240, 277 or 480 volts at 60 Hz. You land the hot lead on the tap that matches the fixture circuit. Nominal input current runs 2.66 A at 120V, 1.54 A at 208V, 1.32 A at 240V, 1.16 A at 277V and 0.66 A at 480V, so the same ballast covers a site with mixed pole voltages.
3) Do I need to buy a capacitor and ignitor separately with this Philips HID ballast?
No, both come with it. The kit includes the LI501-H4 ignitor and a 35 MFD 240V capacitor, catalog number 7C350P24RA. Both components are rated 105 C. If you are replacing only a failed capacitor in an existing fixture, that 7C350P24RA value is what the ballast expects to see.
4) Can I mount this HID ballast in a pole base away from the luminaire?
Remote mounting is allowed, but the leash is short: maximum ballast to lamp distance is 2 feet. That is enough to get the core and coil out of a cramped optical housing into an adjacent ballast compartment, not enough to put it at the base of a pole with the lamp at the top. For a true remote installation you need a ballast rated for a longer lead run.
5) How do I confirm this is the right replacement for the ballast already in my fixture?
Match three things off the label of the old unit: ANSI code S50, 250W HPS lamp, and the tap voltage you are feeding. The Philips base model is 71A8251, catalogued as CORE & COIL HID 71A8251001D. If the existing label shows S50 and 250W HPS, this is a direct functional replacement regardless of which brand built the original.
6) How much room do I need in the fixture housing for the capacitor?
The supplied capacitor is an oval can 3.7 inches tall with a 1.65 inch oval dimension. The ballast itself is a 4 x 4 two-coil core, single lamp. Tight pole-top and shoebox housings are usually laid out around those numbers, but measure the existing capacitor clip before you order if the old can was a round style.
7) Is this Philips core and coil ballast rated for outdoor parking lot and street fixtures?
Yes. It is marked suitable for outdoor use and UL Recognized (approval mark ULR), with UL Insulation Class H at 180 C and UL temperature code 1029C. That covers enclosed area, site and pole luminaires where the ballast sits in an unconditioned housing.
8) What fuse size should I use on the ballast circuit?
Fuse the primary to match the tap you land on: 7 A at 120V, 4 A at 208V, 4 A at 240V, 3 A at 277V and 2 A at 480V. Nominal input power is 300 W at a 0.9 power factor, so the draw on the branch circuit is higher than the 250 W lamp rating alone suggests when you size feeders for a row of poles.
9) Why choose a CWA ballast over a reactor or lag type for a 250W HPS fixture?
CWA means constant wattage autotransformer. It holds lamp wattage within trapezoid deviation limits as line voltage swings, which is why it is the common choice on outdoor area and site lighting fed from long runs where voltage sags. A reactor or lag ballast is cheaper and smaller but lets lamp output wander with the line. This unit is a magnetic HID ballast with a nominal ballast factor of 1, so the lamp runs at its rated output.
10) Will the fixture relight by itself after a momentary power blip?
No. Automatic restart is not a feature of this ballast, so an HPS lamp that drops out on a voltage dip has to cool before it will restrike. On security and roadway lighting where that matters, plan for the normal HPS cooldown or specify a fixture with instant-restrike gear.
11) What open circuit voltage should I read at the ballast output when testing?
Open circuit voltage is 188 V nominal, with an acceptable test window of 169 to 207 V. Secondary short circuit current runs 3.69 to 4.51 A. If you are troubleshooting a fixture that will not strike, those are the numbers to check the ballast against before condemning the lamp or the ignitor.
12) What kind of leads does it come with and how long are they?
Stranded leads, 12 inches long by color, with a 0.5 mm strip length. Twelve inches is workable inside a standard ballast tray but leaves little slack if the splice box is on the far side of the housing, so allow for lead extensions on a deep retrofit.
13) How is this HID ballast packaged for ordering, and how heavy is each one?
One ballast per pack, one pack per outer box, so each order unit is a single core and coil assembly with its ignitor and capacitor. Net weight is 5.612 kg per piece. For crews restocking a truck for pole lighting maintenance, that is roughly 12 pounds per unit to plan around.
How fast can I get the Philips Lighting 913710414701 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Philips Lighting 913710414701 come with a warranty?
Absolutely. The Philips Lighting 913710414701 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 913710414701?
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