Philips Lighting SignPro 91370...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$224.34
$133.54

Philips Lighting SignPro 913701262301 Instant Start Sign Ballast for T12/HO Lamps, 120-277V

(No reviews yet) Write a Review

Model: 913701262301
Selected Model is

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

$224.34
$133.54
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

Philips Lighting SignPro 913701262301 Instant Start Sign Ballast for T12/HO Lamps, 120-277V

The Philips Lighting SignPro 913701262301 is an Instant Start electronic fluorescent sign ballast engineered for T12/HO lamps used in commercial channel-letter and sign applications. It operates on a universal 120 to 277 V input at 50 to 60 Hz, supporting 1-4 lamps across a 4 - 32 FT lamp footage range with a nominal ignition time of 0.1 s. Housed in a Metal BL2 enclosure measuring 14.31" x 3.19" x 2.63", this ballast delivers a 0.98 nominal power factor and is CSA certified and rated suitable for outdoor sign use.

Key Features

  • Lamp Compatibility: Built for T12/HO fluorescent lamps, supporting 1-4 piece/unit across a 4 - 32 FT lamp footage range.
  • Instant Start Ignition: Electronic fluorescent ballast with Instant Start ignition and a nominal ignition time of 0.1 s.
  • Universal Voltage: Operates on 120 to 277 V input at 50 to 60 Hz, drawing 2.26 A nominal current and 265-260 W nominal input power.
  • Metal Housing: BL2 housing type in Metal construction, measuring 14.31" x 3.19" x 2.63".
  • High Power Factor: 0.98 nominal power factor, 0.61 ballast factor, 1.7 crest factor, and 10% total harmonic distortion.
  • Through Wiring: Through wiring configuration allowed, parallel lamp connection, 18AWG solid wire, max distance any = 20'.
  • Outdoor Rated: Suitable for outdoor use in commercial sign installations.

Certifications & Compliance

  • CSA Certificate
  • FCC Non-Consumer EMC Immunity Standard

Technical Specifications

  • Automatic Restart: Yes
  • Base Model: ISB043214EI
  • Crestfactor (Nom): 1.7
  • Ean Upc Product: 7.81087E+11
  • Housing Type: BL2
  • Hum And Noise Level: A
  • Material Nr (12nc): 9.13701E+11
  • Net Weight (Piece): 4.513 kg
  • Numerator Packs Per Outer Box: 1
  • Numerator Quantity Per Pack: 1
  • Order Code: 9.13701E+11
  • Order Product Name: SIGNPRO MAG ISB043214EI
  • Remote Wiring Configuration Allowed: No
  • Suitable For Outdoor Use: Yes
  • Tandem Wiring Configuration Allowed: No
  • Through Wiring Configuration Allowed: Yes
  • Total Harmonic Distortion Usa: 10%
  • Ul Recognized: No
  • Wire Length By Color: See data sheet
  • Wire Striplength: 0.50/0.375 mm

Typical Applications

  • Illuminated Channel-Letter Signs
  • Commercial Outdoor Signage
  • T12/HO Fluorescent Sign Retrofits
  • Electrical Sign and Display Installations
  • Outdoor and Wet-Location Sign Fixtures

Why Philips Lighting?

Philips Lighting builds the SignPro ballast with a Metal BL2 housing, a 0.98 power factor, and CSA-certified performance for dependable operation in commercial signage. Instant Start ignition and automatic restart support reliable performance for demanding sign electrical applications, backed by Philips Lighting's engineering for outdoor-rated commercial signage installations.

Manufacturer Resources

Product Specs

Approval Marks:
CSA certificate
Automatic Restart:
Yes
Ballast Factor Nom :
0.61
Ballast Type:
Electronic Fluorescent
Base Model:
ISB043214EI
Crestfactor Nom :
1.7
Ean Upc Product:
7.81087E+11
Emc Immunity Standard:
FCC Non-Consumer
Housing Dimensions:
14.31" x 3.19" x 2.63"
Housing Material:
Metal
Housing Type:
BL2
Hum And Noise Level:
A
Ignition Method:
Instant Start
Ignition Time Nom :
0.1 s
Input Current Nom :
2.26 A
Input Frequency:
50 to 60 Hz
Input Power Nom :
265-260 W
Input Voltage:
120 to 277 V
Lamp Connection:
Parallel
Lamp Footage:
4 - 32 FT
Lamp Type:
T12/HO
Material Nr 12nc :
9.13701E+11
Max Ballast Lamp Distance Remote Wiring:
No Remote
Max Ballast Lamp Distance Tandem Wiring:
No Tandem
Max Ballast Lamp Distance Through Wiring:
Any = 20'
Net Weight Piece :
4.513 kg
Number Of Lamps:
1-4 piece/unit
Numerator Packs Per Outer Box:
1
Numerator Quantity Per Pack:
1
Order Code:
9.13701E+11
Order Product Name:
SIGNPRO MAG ISB043214EI
Power Factor Nom :
0.98
Rated Lamp Power:
110 W
Remote Wiring Configuration Allowed:
No
Suitable For Outdoor Use:
Yes
Tandem Wiring Configuration Allowed:
No
Through Wiring Configuration Allowed:
Yes
Total Harmonic Distortion Usa:
10%
Ul Recognized:
No
Wire Gauge Nom :
18AWG mm
Wire Length By Color:
See data sheet
Wire Striplength:
0.50/0.375 mm
Wire Type:
Solid
Product Type:
Sign Ballast
Department:
Electrical

Philips Lighting 913701262301 – Frequently Asked Questions

1) Will the Philips SignPro sign ballast run on 120V and 277V, or do I need to order a specific voltage?
One part covers both. The SignPro ISB043214EI takes a universal 120 to 277 V input at 50 to 60 Hz, so the same ballast goes into a 120V storefront sign or a 277V commercial service without changing models. Nominal input current is 2.26 A and nominal input power is 265-260 W, which is what you size the sign circuit against.
2) How many T12 HO lamps can one Philips SignPro 913701262301 ballast drive, and how long can the lamps be?
It drives 1 to 4 T12/HO lamps, wired in parallel, over a total lamp footage range of 4 to 32 feet. Rated lamp power is 110 W. That footage window is the real limit on a channel-letter layout: four 8-foot HO lamps hits the 32-foot ceiling exactly, while short letter runs still need at least 4 feet of lamp on the ballast.
3) How far can I mount this sign ballast from the lamps?
Twenty feet maximum, and only in a through-wiring arrangement. Remote wiring and tandem wiring are both disallowed on this ballast, so you cannot pull it out to a separate remote enclosure and run a long home run to the letters. Plan the ballast box within 20 feet of the furthest lamp on the run, using 18 AWG solid wire.
4) Can the SignPro 913701262301 be used in an outdoor channel-letter sign?
Yes, it is rated suitable for outdoor use and is built in a metal housing for exterior sign cans and channel letters. It carries a CSA certificate and meets the FCC Non-Consumer EMC immunity standard. Note that it is not UL Recognized, so if your job spec or AHJ specifically calls for a UL Recognized component, this is not the one to submit.
5) Can I use this Philips sign ballast to replace a failed magnetic sign transformer in an existing T12 HO sign?
That is exactly the retrofit it is built for, provided the sign still has T12/HO lamps and the total lamp run falls between 4 and 32 feet with no more than four lamps on the ballast. Two things to check before you pull the old unit: the 14.31 x 3.19 x 2.63 inch housing has to fit the raceway, and every lamp must be within 20 feet of the ballast since remote mounting is not permitted. If the sign has been relamped to T8 or LED, this is the wrong ballast.
6) Because lamps are wired in parallel, will the rest of the sign stay lit if one tube fails?
Yes. The SignPro uses a parallel lamp connection, so a single failed or removed tube does not take the remaining lamps on that ballast out with it, the way a series-wired instant start circuit would. It also has automatic restart, so once the bad lamp is swapped the ballast picks the circuit back up without cycling power at the disconnect.
7) Instant start versus rapid start for a cold outdoor sign, which do I want?
This one is instant start, with a nominal ignition time of 0.1 seconds, so the lamps strike immediately with no preheat. Instant start is the normal choice for sign service where the lamps are on dusk to dawn and switching is infrequent. If your sign is on a motion sensor or time clock that cycles it many times a day, frequent starts are harder on instant start lamp cathodes and a programmed or rapid start ballast is the better fit.
8) Is this ballast quiet enough for a sign mounted over a lobby entrance or drive-through window?
It is rated sound class A, the quietest hum and noise grade used for fluorescent ballasts, so it is appropriate over entries, patios and drive-through lanes where people stand close to the raceway. It is an electronic fluorescent ballast, which runs at high frequency and avoids the line-frequency buzz of an older magnetic sign transformer.
9) What model do I give my supplier, and how many ballasts come per box?
Order by Philips base model ISB043214EI, catalogued as SIGNPRO MAG ISB043214EI. It ships one piece per pack and one pack per outer box, so quantity ordered equals quantity of ballasts, no case multiples to work around when you are buying per sign.
10) What wire strip length should my sign tech use when landing the leads?
Strip to 0.50/0.375 mm per the Philips spec on the SignPro leads. The leads are 18 AWG solid conductor, and lead lengths vary by wire color, so match colors to the wiring diagram rather than assuming equal lengths when you lay out a multi-lamp channel-letter run.
How fast can I get the Philips Lighting 913701262301 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 Philips Lighting 913701262301 come with a warranty?
Absolutely. The Philips Lighting 913701262301 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 913701262301?
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 Philips Lighting 913701262301 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.