(888) 497-0290
BLOG
CONTACT
FORUM
FIRE +

APC SM-501-N

SKU: 183726
Manufacturer Part #: SM-501-N
Condition: New
Brand: APC
Status: Active

Duct Smoke Detector Ionization 4 Wire Uni Volt. Square

$59.40

Availability: Estimated 8 days
Add to quote

Description

The SM-501 Series Duct Smoke Detector provides early detection of smoke and products of combustion present in air moving through HVAC ducts in Commercial, Industrial, and Residential applications. The unit is designed to prevent the re-circulation or spread of smoke by air handling systems, fans, and blowers. Complete systems may be shut down in the event of smoke detection.

Documents

Description

The SM-501 Series Duct Smoke Detector provides early detection of smoke and products of combustion present in air moving through HVAC ducts in Commercial, Industrial, and Residential applications. The unit is designed to prevent the re-circulation or spread of smoke by air handling systems, fans, and blowers. Complete systems may be shut down in the event of smoke detection.

Additional information

Weight 3.40 lbs
Dimensions 9.12 × 7.25 × 2.50 in
Manufacturer

Apollo Fire Detectors
Brand

Condition

New
Unit of Measurement

EA (Each)
Production Status

Active
Listings & Approvals

CSFM, cULus, MEA

Reviews

There are no reviews yet.

Be the first to review “APC SM-501-N”

SM‑501 Series Duct Smoke Detectors

Download

Air Products and Controls - Data Sheet

Attributes

Weight 3.40 lbs
Dimensions 9.12 × 7.25 × 2.50 in
Manufacturer

Apollo Fire Detectors
Brand

Condition

New
Unit of Measurement

EA (Each)
Production Status

Active
Listings & Approvals

CSFM, cULus, MEA

Product Features

  • Photoelectric duct smoke detector
  • The SM-501 is housed in our popular traditional compact housing.
  • The units may be wired to use a common test/reset function, and to alarm when a single unit alarms.
  • Advanced detector head design yields internal dust filtering with no additional screens or filters to clean
  • Operating voltages: 230VAC, 115VAC, 24VAC, 24VDC
  • Listed for high temperature Applications
  • Interconnect up to 30 units for common functions
    UL, CUL, CSFM, and MEA Listed
  • Compact Size
  • Two sets of 10A form “C” alarm contacts
  • One set of 10A form “C” trouble contacts
  • Rugged steel back box with clear cover
  • Compatible with the WP-1 weatherproof enclosure
  • Easy retro-fit/upgrade of existing RW Series detectors
  • Clear cover fitted with 4 captive screws
  • Large terminal connection screws
  • Interchangeable “Plug-In” photoelectric heads
  • Easy mounting without cover removal

What's Included

Shipping Details

Pricing & Lead Times are based on details provided directly by the manufacturer, our network of distributors and based on historical lead times on any given product. This is the most up-to-date information we have currently. All orders are subject to 1 – 5 days of processing as the units must go through our product verification process at our main Shipping Hub in New York prior to being shipped out to you. Depending on your circumstances, we can expedite this processing time for additional costs, but orders cannot be expedited unless they are currently in stock. PLEASE NOTE: Any and all pricing and availability are subject to change without notice being given to the client.

Return Details

Equipment must be returned within (30) days of the date it was shipped, or made ready for pickup. In order to initiate a return, you must contact our sales team via email at [email protected] to receive an RMA # if it meets all criteria. Products returned after (30) days from our shipment date will be refused. After RMA acceptance, any parts that are returned to FireAlarm.com are subject to a minimum 25% restocking fee. New parts must be returned with original packaging, in un-opened, and uninstalled condition. If not, these parts may be subject to increased restocking fees or refusal. Depending on the circumstances of your order, and if you are a long-time customer of FireAlarm.com, other arrangements can be made. See our complete return policy for more information at: https://firealarm.com/faq/

Testimonials

Rick A.
★★★★★
Dallas, TXI
"Great service. I received help with exactly what I needed and I received it all in a timely manner."
Charles O.
★★★★★
New Brunswick, NJ
"I had a big engineering/logistics issue that William over at FireAlarm.com helped me with. I don’t know what I would’ve done without their help!"
Jason G.
★★★★★
Los Angeles, CA
"The fastest delivery I’ve seen. Needed overnight emergency parts and I got just that."
Julia S.
★★★★★
Tampa, FL
"Needed last-minute maintenance done on my building’s system, and FireAlarm.com exceeded my expectations with how quickly it was done."

Leave a review

Reviews

There are no reviews yet.

Be the first to review “APC SM-501-N”

You may also like...

Contact Info

Mon – Thurs, 8am to 7pm (EST)
Fri, 8am to 5pm (EST)

(888) 497-0290

Sales: [email protected]

Services: [email protected]

Queries: [email protected]

Services

Emergency Services

Maintenance & Inspection Services

Consulting & Professional Services

Design & Build Services

Partnership Opportunities

Sell on FireAlarm.com

Installation & Services

Products

Shop All Products

Shop by Category

Shop by Brands

Firealarm.com Exclusives

Blog

Forum

FireAlarm.com +

About

Our Company

Our Values

Our Client List

Our Brands

Worldwide

Contact page

Site Map

Policies

Privacy Policy & Terms of Use

Refund Policy

Help

Instagram Linkedin Facebook Youtube

Sign up for our Newsletter

Copyright 2025 © FireAlarm.com | All Rights Reserved

Pricing & Availability Details

Pricing & Lead Times are based on details provided directly by the manufacturer, our network of distributors and based on historical lead times on any given product. This is the most up-to-date information we have currently. All orders are subject to 1 – 5 days of processing as the units must go through our product verification process at our main Shipping Hub in New York prior to being shipped out to you. Depending on your circumstances, we can expedite this processing time for additional costs, but orders cannot be expedited unless they are currently in stock. PLEASE NOTE: Any and all pricing and availability are subject to change without notice being given to the client.

Payment Details

You may remit payment via a US-Based Credit Card (CC Authorization Form), Wire Transfer (w/ $30 or $50 fee added to invoice), via PayPal (Or PayPal Pay Later), via Apple or Google Pay, or by mailing us a check. You can also call in with your credit card information at any time: 888-497-0290.

Return & Cancellation Details

Equipment must be returned within (30) days of the date it was shipped, or made ready for pickup. In order to initiate a return, you must contact our sales team via email at [email protected] to receive an RMA # if it meets all criteria. Products returned after (30) days from our shipment date will be refused. After RMA acceptance, any parts that are returned to FireAlarm.com are subject to a minimum 25% restocking fee. New parts must be returned with original packaging, in un-opened, and uninstalled condition. If not, these parts may be subject to increased restocking fees or refusal. Depending on the circumstances of your order, and if you are a long-time customer of FireAlarm.com, other arrangements can be made. See our complete return policy for more information at: https://firealarm.com/faq/