Description
Philips Advance LI501-H4-IC / LI501-H4 High Pressure Sodium HID Ignitor Guide
Quick Answer: The Philips Advance LI501-H4 is a standard round-case digital/electronic HID ignitor rated for 105°C case temperature operation in High Pressure Sodium (HPS) ballast circuits. It operates 150W, 200W, 250W, 310W, and 400W HPS lamps (ANSI S50, S51, S55, S56, S66, S67) across CWA, CWI, and Reactor ballast types, delivering high-voltage starting pulses required to ignite the sodium arc tube.
Philips Advance LI501-H4-IC Overview & Key Features
The LI501-H4-IC ignitor generates high-voltage starting pulses required to initiate arc discharge in High Pressure Sodium (HPS) lamps across commercial, industrial, and outdoor roadway luminaires:
- Medium-to-High Wattage HPS Compatibility: Operates 150W (S56), 200W (S66), 250W (S50), 310W (S67), and 400W (S51) High Pressure Sodium lamps.
- Standard Round Case Construction: Compact round potted case (1.3" diameter x 2.5" height) with 12-inch color-coded lead wires and standard RW33CC1252 mounting clip furnished.
- 105°C High Temperature Rating: Engineered to withstand elevated internal operating temperatures inside enclosed HID fixture housings.
- 2 ft Maximum Lamp Distance: Provides standard-range ignition pulses for ballasts mounted within 2 feet of the lamp socket.
Philips Advance LI501-H4-IC Technical Specifications & Compatibility
Core performance parameters and ballast family cross-references from the official Philips Advance HID Atlas:
| Lamp Wattage | ANSI Code | Circuit Type | Advance Ballast Family | Max. Dist. to Lamp | Case Type |
|---|---|---|---|---|---|
| 150W | S56 | CWA / R | 71A81_6, 71A86-7 | 2 ft | Round (LI501-H4-IC) |
| 200W | S66 | CWA / R | 71A89_0, 71A89_1, 71A89_7 | 2 ft | Round (LI501-H4-IC) |
| 250W | S50 | CWA / R | 71A82_1, 71A82_7, 71A8392 | 2 ft | Round (LI501-H4-IC) |
| 310W | S67 | CWA / R | 71A83_1, 71A83_7 | 2 ft | Round (LI501-H4-IC) |
| 400W | S51 | CWA / R | 71A84_3, 71A84_7 | 2 ft | Round (LI501-H4-IC) |
| 430W | N/A | CWI | 71A85_6 | 15 ft | Round (LI501-H4-IC) |
Installation & Lead Wire Guidelines
- 3-Lead Circuit Connection: Connect the 12-inch lead wires directly into the HPS ballast circuit: X1 (Red) to Lamp socket, X2 (White) to Common Neutral, and X3 (Blue) to the ballast tap.
- Observe Maximum Lead Distance: Keep lead wire distance between ignitor and lamp socket within 2 feet (or up to 15 ft on 430W CWI circuits) to avoid pulse degradation.
- Mounting Hardware Included: Individual carton (-IC suffix) ignitors include the RW33CC1252 mounting clip for round case securing inside the luminaire.
Frequently Asked Questions
What does the "-IC" suffix stand for in LI501-H4-IC?
The "-IC" suffix indicates "Individual Carton" packaging, which comes furnished with the RW33CC1252 round case mounting clip.
What is the difference between LI501-H4-IC and LI501-J4-IC?
The standard LI501-H4-IC is restricted to a maximum 2-foot wiring distance to the lamp, whereas the LI501-J4-IC long-range ignitor allows wiring distances up to 50 feet from the lamp.
What is the difference between LI501-H4-IC and LI533-H4-IC?
The LI501-H4-IC is engineered specifically for High Pressure Sodium (HPS) lamp circuits (150W–400W), while the LI533-H4-IC is engineered for Pulse-Start Metal Halide (PSMH) lamp circuits.
Spec SheetsAdditional Information
Our Part No: |
BS2-LI501H4IC |
Mfr Part #: |
LI501H4, LI501H4IC |
Manufacturer Material Code: |
913700507341, 913700591109 |
Brand: |
Advance |
Fixture Type HID: |
HPS Ignitor |
Lamp: |
150W-400W |
Operates: |
150W (S56), 200W (S66), 250W (S50), 310W (S67), 400W (S51) |
Dimensions: |
2 1/8" (L) x 1 1/2" (Diam) |
Product Data Sheet: |
See PDF Link Provided |
Alternative Keywords: |
Advance L1501-H4-IC, LI501H4IC, LI501J4 |
Energy Certification: |
RoHS |
Warranty: |
Manufacturer's |
Case Size: |
10 |
