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Siemens OP121 Conventional Photoelectric Smoke Detector

Siemens OP121 Conventional Photoelectric Smoke Detector

SKU: 4601
Manufacturer Part #: OP121
Secondary Part #: S54372-F1-A1
Condition: New
Brand: Siemens
Status: Active

Conventional Photoelectric Detector, Open Area

$75.49

Ships in 8 business days
In Stock
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Description

The Siemens OP121 is a conventional photoelectric smoke detector designed for open-area and direct in-duct applications. It incorporates microprocessor-controlled, self-diagnostic circuitry that automatically verifies sensitivity without requiring external test equipment, supporting NFPA 72 compliance. The built-in magnet-test feature allows installers and service personnel to confirm detector operation and verify proper wiring to the fire alarm control panel (FACP). An internal auto-sensitivity monitoring circuit dynamically checks detector condition and signals maintenance requirements. A three-color LED provides local status indication for normal supervisory operation, trouble, and alarm conditions. The OP121 is UL 268 listed for open-area protection and UL 268A listed for direct in-duct use, and is compatible with Siemens DB-11 series mounting bases and optional duct housings.

Documents

Description

The Siemens OP121 is a conventional photoelectric smoke detector designed for open-area and direct in-duct applications. It incorporates microprocessor-controlled, self-diagnostic circuitry that automatically verifies sensitivity without requiring external test equipment, supporting NFPA 72 compliance.

The built-in magnet-test feature allows installers and service personnel to confirm detector operation and verify proper wiring to the fire alarm control panel (FACP). An internal auto-sensitivity monitoring circuit dynamically checks detector condition and signals maintenance requirements.

A three-color LED provides local status indication for normal supervisory operation, trouble, and alarm conditions. The OP121 is UL 268 listed for open-area protection and UL 268A listed for direct in-duct use, and is compatible with Siemens DB-11 series mounting bases and optional duct housings.

Additional information

Weight 0.3 lbs
Dimensions 2.00 × 4.00 × 4.00 in
Manufacturer

Siemens Industry, Inc.
Brand

Siemens
Condition

New
Unit of Measurement

EA (Each)
Production Status

Active
Type

Detector
Style

Plug-In
Detectable Medium

Smoke
Detection Method

Photoelectric
Test Method

Magnet
Voltage Range

16 – 27 VDC
Compatibility

Data Sheet
Installation

Attributes

Additional information

Weight 0.3 lbs
Dimensions 2.00 × 4.00 × 4.00 in
Manufacturer

Siemens Industry, Inc.
Brand

Siemens
Condition

New
Unit of Measurement

EA (Each)
Production Status

Active
Type

Detector
Style

Plug-In
Detectable Medium

Smoke
Detection Method

Photoelectric
Test Method

Magnet
Voltage Range

16 – 27 VDC
Compatibility

Product Features

• Conventional photoelectric smoke detection
• Microprocessor-controlled, self-diagnostic circuitry
• Automatic sensitivity test (per NFPA 72)
• Magnet-test feature for operational verification
• Dynamic auto-sensitivity monitoring
• Single optical sensing chamber for uniform response
• Three-color LED status indication
• Suitable for open-area and direct in-duct applications
• Air velocity rated to 4,000 ft/min

What's Included

• OP121 Detector Head

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. This product may be sourced from the manufacturer or supplier. If so, manufacturer cancellation fees may apply if the order is cancelled after processing. See our Terms of Sale for details.
See our Terms of Sale for details.

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 Terms of Sale for more information.

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Siemens DB-11 Low Profile Detector Base

Siemens DB-11 Low Profile Detector Base

Mfr. Part #: DB-11
SKU: 4607
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Ships in 10 business days

$15.89

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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/