Square D HDL26040 Molded Case Circuit Breaker 40A 2P

Product Description

The SQUARE D HDL26040 is a 2-pole, molded case circuit breaker rated for 40 amps at 600 VAC and 250 VDC. It uses a thermal-magnetic trip mechanism to provide both overload and short-circuit protection in a single device. The panel-mount design accepts lug-style terminal connections and accommodates wire sizes from 14 AWG to 3/0 AWG, making it suitable for a broad range of feeder and branch-circuit applications. A toggle-switch reset actuator provides straightforward manual operation. Licensed electricians and electrical contractors are the primary installers of this device in commercial and industrial distribution equipment.

The HDL26040 is suited for commercial and industrial panel installations where 2-pole overcurrent protection is required. Rated applications include communication network infrastructure, front display modules, operating assistance equipment, and power metering systems. The 600 VAC rating supports use in standard North American electrical distribution panels. Its compact molded case housing makes it compatible with standard panel-board and switchboard installations requiring a toggle-operated circuit breaker with lug terminations.

Key Features

• 40-amp continuous current rating at 600 VAC and 250 VDC
• Thermal-magnetic trip mechanism provides overload and short-circuit protection
• 2-pole configuration for single-phase or multi-phase branch circuit protection
• Lug-style terminal connections accept 14 AWG to 3/0 AWG conductors
• Toggle-switch reset actuator for direct manual operation
• Multi-standard certified: UL Listed, CSA Certified, IEC 647-2 Icu/Ics, NOM

Compatibility

Rated for use with communication network equipment, front display modules, operating assistance devices, and power meters as noted in the manufacturer specifications. Designed as an OEM-style panel-mount molded case circuit breaker for commercial and industrial electrical distribution applications.

Installation Notes

Installation must be performed by a qualified, licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. De-energize the panel completely and verify the absence of voltage with a calibrated meter before handling or terminating conductors. Lug connections must be torqued per the conductor manufacturer and panel specifications. Do not exceed the rated wire size range of 14 AWG to 3/0 AWG at the lug terminals.