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Circuit Breakers, Fuses & Relays

A comprehensive selection of circuit breakers, fuses, and relays engineered for low-voltage overcurrent and overload protection. Designed for industrial, commercial, and renewable energy applications, these components improve system uptime, simplify maintenance, and help meet electrical safety and compliance standards. Choose from thermal-magnetic breakers, cartridge and blade fuses, and electromechanical or solid-state relays to match your control and protection needs.

Featured Brands
511 Items
Honeywell Home 4204 Intelligent Relay Board for VISTA-15P/20P
Honeywell Home 5800RL Wireless Relay Module for LYNX System (Software Revision 9.0 or Higher)
Kidde CO120X Relay Module for I-Combo Units, CO Alarms
Kidde Residential
Kidde CO120X Relay Module for I-Combo Units, CO Alarms
CO120X
In Stock
$25.92
Kidde EOL-4.7 End of Line Resistor, 4.7K Assembly, UL Approved
Kidde SM120X Relay Module for I-Combo Units, Smoke Alarms
Kidde Residential
Kidde SM120X Relay Module for I-Combo Units, Smoke Alarms
SM120X
In Stock
$12.48
LifeSafety Power ATM 3 FUSE-BOXED (BAG OF 25) 3A Fuse Access Control Accessory, 25-Pack
LifeSafety Power
LifeSafety Power ATM 3 FUSE-BOXED (BAG OF 25) 3A Fuse Access Control Accessory, 25-Pack
ATM-3-FUSE-BOXED-BAG-OF-25
In Stock
$26.66
Mersen ATMR30 Class CC Fuse, 600V
Mersen Electrical Power
Mersen ATMR30 Class CC Fuse, 600V
ATMR30
In Stock
$15.52
Potter ARM-4 Adder Relay Card Series 5000
Potter Electric Signal, LLC
Potter ARM-4 Adder Relay Card Series 5000
ARM-4
In Stock
$148.60
Potter IDC-6 Initiating Device Circuit Expander
Potter Electric Signal, LLC
Potter IDC-6 Initiating Device Circuit Expander
IDC-6
In Stock
$387.83
Potter PAD100-RM Relay Module
Potter Electric Signal, LLC
Potter PAD100-RM Relay Module
PAD100-RM
In Stock
$93.02
Potter PAM-1 Multi-Voltage Relay Module
Potter Electric Signal, LLC
Potter PAM-1 Multi-Voltage Relay Module
PAM-1
In Stock
$20.88
Potter PAM-4 Polarized Relay Module
Potter Electric Signal, LLC
Potter PAM-4 Polarized Relay Module
PAM-4-2
In Stock
$20.20
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