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KIDDE Relay Module: Hardwired, Smoke Alarm Relay Module - Interconnection Relays
KIDDEInterconnection Relays

KIDDE Relay Module: Hardwired, Smoke Alarm Relay Module

The KIDDE SM120X is a hardwired smoke alarm relay module (Type: Interconnection Relays) that operates at 120V AC and includes one set of Form C contacts. It activates only upon receiving a smoke signal from an…

SKU 3G-OTH-553661

Brand
KIDDE
Item
Relay Module: Hardwired, Smoke Alarm Relay Module
Category
Interconnection Relays
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Technical Specifications

KIDDE
Manufacturer Part Number
SM120X
Type
Smoke Alarm Relay Module, Hardwired
Features
Will Only Activate When It Receives A Smoke Signal From An Interconnect Smoke Alarm
Includes
(1) Set of Form C Contacts
Standards
UL Listed
Power Source
Hardwired
Product Type
Smoke Alarm Relay Module
Operating Voltage
120V AC
Connectivity Broad
None
Backup Battery Broad DELETE AFTER PLAN
Yes
View Full Spec Sheet

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KIDDE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KIDDE SM120X is a hardwired smoke alarm relay module (Type: Interconnection Relays) that operates at 120V AC and includes one set of Form C contacts. It activates only upon receiving a smoke signal from an interconnect smoke alarm, and is UL Listed.

Frequently Asked Questions

What is the KIDDE SM120X smoke alarm relay module used for?

The KIDDE SM120X is a hardwired relay module that activates only when it receives a smoke signal from an interconnected smoke alarm. It provides one set of Form C contacts to trigger auxiliary devices like fire dampers, door closers, or HVAC shutdown systems in commercial or residential fire safety applications.

What are the specifications of the KIDDE SM120X relay module?

The KIDDE SM120X operates at 120V AC and is hardwired with no backup battery. It includes one set of Form C contacts and is UL Listed. The module activates only upon receiving a smoke signal from an interconnect smoke alarm, making it suitable for integration into fire alarm systems.

Where to buy the KIDDE SM120X relay module worldwide?

3G Electric supplies the KIDDE SM120X relay module to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this UL Listed, 120V AC hardwired smoke alarm relay module.

How to install the KIDDE SM120X smoke alarm relay module?

Install the KIDDE SM120X by connecting it to a 120V AC power source and wiring the Form C contacts to the auxiliary device. The module must be interconnected with a compatible smoke alarm that sends a smoke signal. Follow local electrical codes and the manufacturer's wiring diagram for safe installation.

Used in

Common applications for KIDDE
Industrial facility key control — KIDDE 120-key cabinet (MPN 1803) for managing keys to electrical rooms and machinery enclosures.
Emergency responder access — KIDDE over-the-door lockbox (MPN 534) for storing building keys at fire department entry points.
Fleet vehicle key management — KIDDE padlock lockbox (MPN 1404) for securing keys to service trucks in maintenance yards.
School or office cabinet security — KIDDE cabinet lock (MPN 1798) for locking supply cabinets and desk drawers.
Hospital utility room access — KIDDE 30-key cabinet (MPN 1795) for organizing keys to janitorial closets and storage areas.
Construction site key storage — KIDDE padlock lockbox (MPN 1012) for securing keys to equipment trailers and tool sheds.

KIDDE Products

3G Electric supplies KIDDE interconnection relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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KIDDE Relay Module: Hardwired, Carbon Monoxide Relay Module, Hardwired (MPN CO120X). Key specifications — Operating Voltage: 120V AC; Features: Will Only Activate When It Receives A CO Signal From An Interconnect Carbon Monoxide Alarm; Includes: (1) Set of Form C Contacts; Brand: KIDDE; Product Type: Carbon Monoxide Relay Module; Standards: UL Listed; Power Source: Hardwired; Connectivity_Broad: None.
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KIDDE Relay Module: Hardwired, Carbon Monoxide Relay Module, Hardwired (MPN CO120X). Key specifications — Operating Voltage: 120V AC; Features: Will Only Activate When It Receives A CO Signal From An Interconnect Carbon Monoxide Alarm; Includes: (1) Set of Form C Contacts; Brand: KIDDE; Product Type: Carbon Monoxide Relay Module; Standards: UL Listed; Power Source: Hardwired; Connectivity_Broad: None.