Description
Keystone Oil Filled Metal Halide Capacitor, Pulse Start, 1000 Watt, 24uF, 480V
Keystone 1000W Pulse Start Metal Halide Replacement Capacitor (CAP-1000MPS)
The Keystone CAP-1000MPS is an industrial-duty, metallized AC oil-filled replacement capacitor engineered specifically for 1000-watt pulse start metal halide (ANSI M141) ballast circuits. Engineered to deliver power factor correction (≥90% HPF) and ensure stable arc maintenance across high-wattage HID fixtures, this heavy-duty component features a hermetically sealed aluminum oval can, an internal discharge safety bleed resistor, and standard 1/4″ quick-connect spade terminals designed for industrial high bays, sports floodlights, and large-area arena luminaires.
Key Features & Performance Benefits
- High Power Factor Correction: Optimizes line impedance and compensates for reactive induction in 1000W CWA circuits, maintaining high power factor (≥0.90) and reducing line current draw.
- Internal Safety Bleed Resistor: Factory-installed discharge resistor safely drains high residual DC voltage within minutes after power interruption to prevent electrical shock during servicing.
- Hermetic Aluminum Can Construction: Seamless extruded oval aluminum housing with a rolled compression header seal prevents dielectric fluid leakage and withstands high operating temperatures.
- Universal Retrofit Compatibility: Matches standard physical dimensions, mounting brackets, and electrical ratings found in Keystone, Philips Advance, and Universal core-and-coil 1000W ballast assemblies.
- Safety & Compliance: UL Recognized component (UL 810), CSA certified, utilizing environmentally friendly non-PCB dielectric fluid and an internal pressure-sensitive interrupter (PSI) for safe failure disconnect.
Electrical & Physical Data
| Specification | Details |
|---|---|
| Primary Lamp Rating | 1000W Pulse Start Metal Halide |
| ANSI Ballast/Lamp Code | M141 |
| Capacitance | 24.0 µF ±3% (Microfarads) |
| Voltage Rating | 480V AC (50/60 Hz) |
| Operating Frequency | 50 / 60 Hz |
| Terminal Style | 1/4″ (0.250″) Quick-Connect Spade Terminals |
| Dielectric Medium | Non-PCB Biodegradable Oil Fluid |
Frequently Asked Questions
What does "CAP-1000MPS" stand for in Keystone's catalog?
"CAP" designates a standalone replacement HID capacitor, "1000" denotes the 1000W lamp rating, "M" signifies Metal Halide lamp chemistry, and "PS" specifies Pulse Start circuit operation (ANSI M141).
How does the CAP-1000MPS differ from standard 1000W probe-start capacitors?
Standard 1000W probe start (ANSI M47) systems typically use a 24 µF or 26 µF capacitor rated around 480V. The CAP-1000MPS is designed for 1000W pulse start (M141) ballasts and requires a 30 µF rating with a higher 525V AC operating threshold to handle elevated circuit voltages.
Does this capacitor include the starter ignitor?
No. The CAP-1000MPS is strictly the standalone oil-filled capacitor unit. Pulse start ballasts require an external electronic high-voltage ignitor to deliver the arc starting pulse to the M141 lamp.
Spec Sheets
Download the official manufacturer documentation and specifications:
Additional Information
Our Part No: |
CAP-1000MPS |
Mfr Part #: |
CAP-1000MPS |
Manufacturer Material Code: |
NA |
Fixture Type HID: |
Metal Halide MH Capacitor |
Lamp: |
1000W M141 Pulse Start Metal Halide MH |
Watts: |
1000W |
Voltage: |
480V |
Microfarad: |
24μF |
Dimensions: |
OVAL (1.91" W x 2.91" L) x 3.91" H |
Type: |
Oil Filled |
Start Method: |
Pulse Start |
Product Data Sheet: |
See PDF Link Provided |
Case Size: |
10 |
