Philips Lighting 913701218101 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$96.20
$48.51
Philips Lighting 913701218101 AMBISTAR RELB2S40N35I Electronic Fluorescent Ballast for F40T12 Lamps, 40W

Philips Lighting 913701218101 AMBISTAR RELB2S40N35I Electronic Fluorescent Ballast for F40T12 Lamps, 40W

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Model: 913701218101
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Philips Lighting AMBISTAR RELB2S40N35I Electronic Fluorescent Ballast for F40T12 Lamps, 40W

The Philips Lighting AMBISTAR RELB2S40N35I is an electronic fluorescent ballast engineered for F40T12 lamps at a rated 40 W lamp power. Its durable metal housing measures 9.5" x 1.3" x 1.0" and it operates on a 120V, 60 Hz input with rapid start ignition for dependable startup. CSA certified and suitable for outdoor use, this series-connected ballast delivers reliable performance for commercial, industrial, and retrofit fluorescent lighting installations.

Key Features

  • Housing: Durable metal enclosure measuring 9.5" x 1.3" x 1.0" for compact fixture integration.
  • Ballast Type: Electronic fluorescent ballast for F40T12 lamps, rated 40 W, with series lamp connection.
  • Rapid Start Ignition: Nominal 1-second ignition time for dependable, fast startup.
  • Electrical Input: 120V, 0.62 A, 72 W, 60 Hz for standard commercial power systems.
  • Performance: 0.85 ballast factor, 0.98 power factor, 1.7 crest factor, and 20% THD for efficient, low-distortion operation.
  • Wiring Flexibility: Supports remote wiring up to 20' and tandem/through wiring up to 10' for versatile fixture layouts.
  • Automatic Restart: Restarts automatically once a fault condition clears, minimizing downtime.
  • Outdoor Rated: Suitable for outdoor use and CSA certified for code-compliant installations.

Certifications & Compliance

  • CSA Certificate
  • FCC Consumer EMC Immunity Standard

Technical Specifications

  • Automatic Restart: Yes
  • Color Input Terminals: No terminals
  • Color Output Terminals: No terminals
  • Connector Type: No connector
  • Crest Factor (Nom): 1.7
  • EAN/UPC Product: 7.81087E+11
  • Housing Type: N
  • Hum and Noise Level: A
  • Ignition Time (Nom): 1 s
  • Material Nr (12NC): 9.13701E+11
  • Max Ballast-Lamp Distance, Remote Wiring: 20'
  • Max Ballast-Lamp Distance, Tandem Wiring: Red = 10'
  • Max Ballast-Lamp Distance, Through Wiring: Red = 10'
  • Net Weight (Piece): 331.000 g
  • Numerator Packs Per Outer Box: 10
  • Numerator Quantity Per Pack: 1
  • Order Code: 9.13701E+11
  • Remote Wiring Configuration Allowed: Yes
  • Suitable For Outdoor Use: Yes
  • Tandem Wiring Configuration Allowed: Yes
  • Through Wiring Configuration Allowed: Yes
  • Total Harmonic Distortion, USA: 20%
  • 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

Typical Applications

  • Replacement Ballast for F40T12 Fluorescent Fixtures
  • Commercial and Industrial Lighting Retrofits
  • Outdoor-Rated Fluorescent Lighting Installations
  • Remote, Tandem, or Through-Wired Lighting Layouts
  • New Construction Fluorescent Fixture Wiring

Why Philips Lighting?

The Philips Lighting AMBISTAR RELB2S40N35I pairs a rugged metal housing with CSA-certified performance, rapid start ignition, and automatic restart for reliable, code-compliant fluorescent lighting. Its 0.98 power factor and flexible remote, tandem, and through-wiring support make it a dependable ballast choice for indoor and outdoor F40T12 fixtures.

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Manufacturer Resources

Product Specs

Approval Marks:
CSA certificate
Automatic Restart:
Yes
Ballast Factor Nom :
0.85
Ballast Type:
Electronic Fluorescent
Base Model:
RELB2S40N
Color Input Terminals:
No terminals
Color Output Terminals:
No terminals
Connector Type:
No connector
Crestfactor Nom :
1.7
Ean Upc Product:
7.81087E+11
Emc Immunity Standard:
FCC Consumer
Housing Dimensions:
9.5" x 1.3" x 1.0"
Housing Material:
Metal
Housing Type:
N
Hum And Noise Level:
A
Ignition Method:
Rapid Start
Ignition Time Nom :
1 s
Input Current Nom :
0.62 A
Input Frequency:
60 Hz
Input Power Nom :
72 W
Input Voltage:
120 V
Lamp Connection:
Series
Lamp Type:
F40T12
Material Nr 12nc :
9.13701E+11
Max Ballast Lamp Distance Remote Wiring:
20'
Max Ballast Lamp Distance Tandem Wiring:
Red = 10'
Max Ballast Lamp Distance Through Wiring:
Red = 10'
Net Weight Piece :
331.000 g
Number Of Lamps:
1/2 piece/unit
Numerator Packs Per Outer Box:
10
Numerator Quantity Per Pack:
1
Order Code:
9.13701E+11
Order Product Name:
AMBISTAR RELB2S40N35I
Power Factor Nom :
0.98
Rated Lamp Power:
40 W
Remote Wiring Configuration Allowed:
Yes
Suitable For Outdoor Use:
Yes
T Case Maximum Nom :
70 °C
Tandem Wiring Configuration Allowed:
Yes
Through Wiring Configuration Allowed:
Yes
Total Harmonic Distortion Usa:
20%
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:
Fluorescent Ballast
Department:
Electrical

Philips Lighting 913701218101 – Frequently Asked Questions

1) What lamps does the Philips Ambistar RELB2S40N ballast run?
The Ambistar RELB2S40N35I is built for F40T12 fluorescent lamps at 40 W rated lamp power, and it runs one or two lamps per unit. Lamps are wired in series, so both tubes on a two-lamp hookup share the same circuit.
2) Is this Ambistar ballast 120V only, or will it run on 277V?
120 V only, at 60 Hz. The RELB2S40N35I is a single-voltage electronic fluorescent ballast, so it will not work on a 277 V branch circuit. Nominal input draw is 0.62 A at 72 W.
3) Will this ballast fit in my existing 4-foot fluorescent strip fixture channel?
The metal housing measures 9.5 x 1.3 x 1.0 inches, which is the standard small case size that drops into most 4-foot F40T12 strip and troffer channels. It is a Type N (non-encased-lead) housing with no input or output terminal blocks and no connector, so the 18 AWG solid leads wire straight through to the lampholders and line. Piece weight is 331 g.
4) How far can I run the leads from the ballast to the lamps?
Remote wiring is allowed out to 20 feet. If you are tandem wiring or through wiring between fixtures, the red lead run is limited to 10 feet. All three configurations, remote, tandem and through, are permitted on the RELB2S40N.
5) Can I use this Philips ballast in an outdoor or parking canopy fixture?
Yes, the Ambistar RELB2S40N35I is rated for outdoor use. The limit to watch is case temperature: maximum nominal T-case is 70 C, so it has to be mounted where the fixture channel stays within that. It also restarts automatically after a lamp is replaced or power is restored, which matters on unattended exterior fixtures.
6) Is this a rapid start or instant start ballast, and will it work with my occupancy sensors?
Rapid start, with a nominal one second ignition time. Rapid start heats the cathodes before striking, which is the gentler option for fixtures that get switched frequently, such as restrooms and offices on occupancy sensors. Instant start ballasts light faster but shorten lamp life under heavy switching.
7) Does the Philips Ambistar RELB2S40N35I carry a CSA listing for Canadian jobs?
It holds a CSA certificate. It is not UL Recognized, so if your specification calls specifically for a UL Recognized component, this one will not satisfy it. EMC immunity is to the FCC Consumer standard.
8) Will this ballast hum in a quiet office or classroom?
Sound rating is A, the quietest fluorescent ballast class, so it is the right choice for classrooms, libraries, offices and patient rooms. Crest factor is 1.7 nominal.
9) How does the Ambistar ballast ship, and can I buy a single one?
Each pack holds one ballast and an outer box holds ten packs, so you can take a single unit or a full case of ten for a re-lamp project across a building.
10) How much insulation do I strip off the ballast leads when wiring it up?
Strip length on the RELB2S40N35I leads is 0.50/0.375 mm as specified, and the conductors are 18 AWG solid. Solid leads mean you can push them into standard push-in lampholders or use wire nuts without a ferrule.
How fast can I get the Philips Lighting 913701218101 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 913701218101 come with a warranty?
Absolutely. The Philips Lighting 913701218101 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 913701218101?
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
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