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Square D EHB34040 40A 3-Pole 480V Molded Case Circuit Breaker
- Regular price
- $1,957.00
- Sale price
- $1,957.00
- Regular price
-
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Product Description P/N: EHB34040
Description
The Square D EHB34040 is a 40 Amp, 3-pole molded case circuit breaker designed for three-phase electrical systems. It provides thermal-magnetic protection for circuits operating at 240 VAC or 480Y/277 VAC. This bolt-on breaker is compatible with Square D NEHB panelboards, ensuring secure and reliable operation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Square D |
| Category | Circuit Breaker |
| Part Number | EHB34040 |
| Subcategory | Molded Case Circuit Breaker |
| Series | EHB |
| Poles | 3 |
| Current Rating | 40 Amp |
| Voltage Rating | 240 VAC, 480Y/277 VAC |
| Phase | Three-Phase |
| Trip Type | Thermal-Magnetic |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Mounting Type | Bolt-On |
| Terminal Type | Lugs |
| Wire Range | 14–2 AWG (Cu), 12–2 AWG (Al), Max 2 AWG |
| Interrupting Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Optional Features | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approvals | CSA, UL |
| Operating Temperature | 40°C |
| Construction Features | HACR Rated, Visual Trip Indicator |
| Weight | 5 lbs |
Information About EHB34040
The EHB34040 is part of Square D’s EHB series of molded case breakers, engineered for industrial and commercial applications. It features a thermal-magnetic trip mechanism with long-time and instantaneous (LI) functionality. The breaker supports wire sizes from 14–2 AWG (Cu) and 12–2 AWG (Al) with a maximum capacity of 2 AWG. Optional features include shunt trip, auxiliary switch, undervoltage release, alarm switch, and padlock attachment for enhanced safety and operational flexibility.
Key Features:
- Series: EHB Series molded case breaker for industrial use.
- Poles: 3-pole configuration for three-phase systems.
- Current Rating: 40 Amp continuous load capacity.
- Voltage Rating: 240 VAC and 480Y/277 VAC compatible.
- Mounting Style: Bolt-on for secure panelboard installation.
- Trip Mechanism: Thermal-magnetic with long-time and instantaneous (LI) protection.
- Interrupting Capacity: 65kA @ 240VAC, 14kA @ 480Y/277VAC.
- Wire Range: 14–2 AWG (Cu), 12–2 AWG (Al), Max 2 AWG.
- Optional Features: Shunt trip, auxiliary switch, undervoltage release, alarm switch, padlock attachment.
- Construction Features: HACR rated with visual trip indicator.
The EHB34040 delivers the reliability and precision required for industrial and commercial three-phase circuit protection.
Description
The Square D EHB34040 is a 40 Amp, 3-pole molded case circuit breaker designed for three-phase electrical systems. It provides thermal-magnetic protection for circuits operating at 240 VAC or 480Y/277 VAC. This bolt-on breaker is compatible with Square D NEHB panelboards, ensuring secure and reliable operation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Square D |
| Category | Circuit Breaker |
| Part Number | EHB34040 |
| Subcategory | Molded Case Circuit Breaker |
| Series | EHB |
| Poles | 3 |
| Current Rating | 40 Amp |
| Voltage Rating | 240 VAC, 480Y/277 VAC |
| Phase | Three-Phase |
| Trip Type | Thermal-Magnetic |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Mounting Type | Bolt-On |
| Terminal Type | Lugs |
| Wire Range | 14–2 AWG (Cu), 12–2 AWG (Al), Max 2 AWG |
| Interrupting Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Optional Features | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approvals | CSA, UL |
| Operating Temperature | 40°C |
| Construction Features | HACR Rated, Visual Trip Indicator |
| Weight | 5 lbs |
Information About EHB34040
The EHB34040 is part of Square D’s EHB series of molded case breakers, engineered for industrial and commercial applications. It features a thermal-magnetic trip mechanism with long-time and instantaneous (LI) functionality. The breaker supports wire sizes from 14–2 AWG (Cu) and 12–2 AWG (Al) with a maximum capacity of 2 AWG. Optional features include shunt trip, auxiliary switch, undervoltage release, alarm switch, and padlock attachment for enhanced safety and operational flexibility.
Key Features:
- Series: EHB Series molded case breaker for industrial use.
- Poles: 3-pole configuration for three-phase systems.
- Current Rating: 40 Amp continuous load capacity.
- Voltage Rating: 240 VAC and 480Y/277 VAC compatible.
- Mounting Style: Bolt-on for secure panelboard installation.
- Trip Mechanism: Thermal-magnetic with long-time and instantaneous (LI) protection.
- Interrupting Capacity: 65kA @ 240VAC, 14kA @ 480Y/277VAC.
- Wire Range: 14–2 AWG (Cu), 12–2 AWG (Al), Max 2 AWG.
- Optional Features: Shunt trip, auxiliary switch, undervoltage release, alarm switch, padlock attachment.
- Construction Features: HACR rated with visual trip indicator.
The EHB34040 delivers the reliability and precision required for industrial and commercial three-phase circuit protection.
