Keystone 250W Metal Halide Cap...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$84.24
$44.83
Image coming soon

Keystone 250W Metal Halide Capacitor 15mf 400V Dry Film Construction

(No reviews yet) Write a Review

Model: CAP-250MH

In Stock (leaves warehouse same day if ordered before 3pm ET)

$84.24
$44.83
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Keystone 250W Metal Halide Capacitor 15mf 400V Dry Film Construction

Professional Capacitor Component for Metal Halide Lighting Systems

The Keystone 250W Metal Halide Capacitor delivers reliable power factor correction for 250-watt metal halide quad lighting applications. Featuring dry film construction and 400V output voltage with 15mf capacitance, this professional-grade capacitor ensures optimal ballast performance and system efficiency in commercial and industrial lighting installations.

Professional Features & Benefits

  • 250W Power Rating: Specifically designed for 250-watt metal halide systems, ensuring proper power factor correction and optimal ballast operation.
  • 400V Output Voltage: High voltage capability provides reliable performance in demanding commercial lighting applications.
  • 15mf Capacitance: Precise capacitance value delivers accurate power factor correction for improved system efficiency and reduced energy costs.
  • Dry Film Construction: Advanced construction technology provides superior reliability and extended service life in various environmental conditions.
  • Lightweight Design: At just 0.51 lbs, the compact design simplifies installation and reduces mounting requirements.
  • 2-Year Warranty: Comprehensive warranty coverage ensures long-term reliability and professional peace of mind.

Technical Specifications

  • Accessory Device: Yes
  • Cec T20: No
  • Construction: Dry Film
  • Dlc: No
  • Dlc Premium: No
  • Energy Star: No
  • Led Module Included: No
  • Not Suitable For Sale In California: No
  • Output Voltage: 400
  • Power: 250
  • Product Weight: 0.51 lbs
  • T24 Ja8: No
  • Ul: No
  • Unique Features: 15mf
  • Warranty Years: 2
  • Wireless Control: No

Professional Applications

  • Commercial Metal Halide Lighting Systems
  • Industrial Facility Lighting
  • Warehouse and Manufacturing Lighting
  • Retail and Office Building Illumination
  • Sports Facility and Arena Lighting
  • Parking Structure and Security Lighting
  • Ballast Replacement and Retrofit Projects

Why Choose Keystone Quality?

Keystone delivers professional-grade lighting components with proven reliability and durability. The dry film construction and 2-year warranty coverage ensure dependable performance in demanding commercial applications, while the precise 15mf capacitance and 400V rating provide optimal power factor correction for efficient metal halide lighting operation.

Manufacturer Resources

Product Specs

Accessory Device:
Yes
Cec T20:
No
Construction:
Dry Film
Dlc:
No
Dlc Premium:
No
Energy Star:
No
Led Module Included:
No
Not Suitable For Sale In California:
No
Output Voltage:
400
Power:
250
Product Weight:
0.51 lbs
T24 Ja8:
No
Ul:
No
Unique Features:
15mf
Warranty Years:
2
Wireless Control:
No

Keystone CAP-250MH – Frequently Asked Questions

1) What capacitor do I need for a 250W metal halide ballast?
The Keystone CAP-250MH is matched to 250-watt metal halide ballasts, rated 15mf at 400V. If your ballast label calls for a different microfarad value or voltage, that capacitor is not the right one, since both numbers have to match the ballast's requirement for the circuit to strike and run correctly.
2) Can I use the Keystone CAP-250MH capacitor on a 400W or 175W metal halide fixture?
No. The CAP-250MH is specified for 250-watt metal halide only. Other wattages use different capacitance values, so pairing this 15mf unit with a 175W or 400W ballast will leave the lamp running outside its design current. Order the capacitor that matches the wattage printed on the ballast.
3) Does the Keystone CAP-250MH come with a ballast, or is it just the capacitor?
It's the capacitor alone, sold as a replacement accessory component for a 250W metal halide ballast assembly. No ballast core, no igniter, no lamp, and no mounting bracket are part of it. If you're rebuilding a complete ballast kit, order the core, igniter and capacitor separately.
4) Is the 400V on this metal halide capacitor the supply voltage I wire it to?
No, 400V is the capacitor's own voltage rating, not a line voltage requirement. It is the working voltage the dry film element will tolerate inside the ballast circuit. The capacitor wires into the ballast assembly per the ballast diagram, whatever the fixture's input voltage happens to be.
5) What does dry film construction mean on a lighting capacitor, and is it better than oil-filled?
Dry film means the dielectric is a metallized film with no liquid impregnant. The practical difference for a maintenance crew is that there is nothing to leak if the can is damaged or overheats, which matters in enclosed poletop and high-bay fixtures. Oil-filled (wet) capacitors handle heat differently and are still common in older ballast kits. The Keystone CAP-250MH is the dry film type.
6) What part number do I order for the Keystone 250W metal halide capacitor?
Order Keystone CAP-250MH. One model covers it, rated 15mf at 400V for 250-watt metal halide, so there are no finish, voltage or capacitance options to specify when you place the order.
7) Can this Keystone capacitor be shipped to and installed in California?
Yes. The CAP-250MH is not flagged as restricted from sale in California, so it can be used on repair work in that state.
8) Does this capacitor support any dimming or wireless lighting control?
No. There is no wireless control capability on the CAP-250MH, and it is not a control device. It is a power factor correction capacitor in the ballast circuit only. For networked or dimmable control on a 250W metal halide area, the control has to live in the ballast or driver, not here.
How fast can I get the Keystone CAP-250MH delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 Keystone CAP-250MH come with a warranty?
Absolutely. The Keystone CAP-250MH 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 Keystone CAP-250MH?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Keystone CAP-250MH from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!