(888) 497-0290
BLOG
CONTACT
FORUM
FIRE +

This product has been replaced by

System Sensor 5251B

Fixed Temperature Thermal Detector

Manufacturer Part #: 5251B
View product

System Sensor 5251B

$98.60

Fixed Temperature Thermal Detector

Availability: Estimated 8 days
Request a Quote
Condition: New
Brand: System Sensor
Status: Discontinued
SKU: 17131
Manufacturer Part #: 5251B
Replacement: 5351B

Description

Models 5251B, 5251RB, and 5251H are intelligent sensors that utilize a state-of-the-art thermistor sensing circuit for fast response. These sensors are designed to provide open area protection with 50-foot spacing capability as approved by UL 521. Model 5251B is a fixed-temperature sensor with a 135°F fixed temperature alarm. Model 5251RB is a rate-of-rise temperature sensor with a 135°F fixed temperature alarm. Model 5251H is a high-temperature sensor with a 190°F fixed temperature alarm.

Two LEDs on each sensor light to provide 360° visibility of the sensor indication. The LEDs can be latched ON by code command from the panel for an alarm indication. The LEDs can also be unlatched to the normal condition by code command. Remote LED annunciator capability is available as an optional accessory (Part No. RA400Z/RA100Z).

Documents

Description

Models 5251B, 5251RB, and 5251H are intelligent sensors that utilize a state-of-the-art thermistor sensing circuit for fast response. These sensors are designed to provide open area protection with 50-foot spacing capability as approved by UL 521. Model 5251B is a fixed-temperature sensor with a 135°F fixed temperature alarm. Model 5251RB is a rate-of-rise temperature sensor with a 135°F fixed temperature alarm. Model 5251H is a high-temperature sensor with a 190°F fixed temperature alarm.

Two LEDs on each sensor light to provide 360° visibility of the sensor indication. The LEDs can be latched ON by code command from the panel for an alarm indication. The LEDs can also be unlatched to the normal condition by code command. Remote LED annunciator capability is available as an optional accessory (Part No. RA400Z/RA100Z).

Additional information

Weight 0.2 lbs
Manufacturer

Honeywell
Brand

Condition

New
Type

Detector
Style

Plug-In
Detection Method

Fixed Temperature
Programming

Rotary Dials
Thermal Rating

135°F
Series

Production Status

Discontinued

Reviews

There are no reviews yet.

Be the first to review “System Sensor 5251B”

200 Series: Intelligent Low-Profile Plug-In Detectors

Download

System Sensor - Data Sheet

5251B, 5251RB, 5251H Intelligent Plug-in Temperature Sensors

Download

System Sensor - Installation Manual

Attributes

Weight 0.2 lbs
Manufacturer

Honeywell
Brand

Condition

New
Type

Detector
Style

Plug-In
Detection Method

Fixed Temperature
Programming

Rotary Dials
Thermal Rating

135°F
Series

Production Status

Discontinued

Product Features

  • Sleek, low-profile design
  • Analog communications
  • Low standby current
  • Rotary address switches
  • Superior EMI protection
  • Dual LEDs for 360° visibility

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
Read More
"Great service. I received help with exactly what I needed and I received it all in a timely manner."
Charles O.
★★★★★
New Brunswick, NJ
Read More
"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
Read More
"The fastest delivery I’ve seen. Needed overnight emergency parts and I got just that."
Julia S.
★★★★★
Tampa, FL
Read More
"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 “System Sensor 5251B”

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

Instagram Linkedin Facebook Youtube

Sign up for our Newsletter

Copyright 2024 © 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/