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Siemens Molded Case Circuit Breaker: 40 A Amps, 25kA at 277V AC, Fixed, Load Side Lug - ED-Frame Siemens Molded Case Circuit Breakers
SiemensED-Frame Siemens Molded Case Circuit Breakers

Siemens Molded Case Circuit Breaker: 40 A Amps, 25kA at 277V AC, Fixed, Load Side Lug

The SIEMENS Molded Case Circuit Breaker (SKU 3CMN3) is an ED-Frame, HED4 series breaker rated for 40 A amps with a maximum AIR rating of 25kA at 277V AC. It features a fixed instantaneous trip, load-side lug terminal…

SKU 3G-OTH-22579

Brand
Siemens
Item
Molded Case Circuit Breaker: 40 A Amps, 25kA at 277V AC, Fixed, Load Side Lug
Category
ED-Frame Siemens Molded Case Circuit Breakers
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Technical Specifications

Siemens
Manufacturer Part Number
HED41B040
Series
HED4
Type
25kA at 277V AC, Fixed, Load Side Lug, Any, HED4
Max. AIR Rating
25kA at 277V AC
Phase Connection
Any
Instantaneous Trip
Fixed
Terminal Connection
Load Side Lug
View Full Spec Sheet

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

Product Description

The SIEMENS Molded Case Circuit Breaker (SKU 3CMN3) is an ED-Frame, HED4 series breaker rated for 40 A amps with a maximum AIR rating of 25kA at 277V AC. It features a fixed instantaneous trip, load-side lug terminal connection, and supports any phase connection. This breaker is designed for industrial circuit protection applications.

Frequently Asked Questions

What is the SIEMENS HED41B040 molded case circuit breaker used for?

The SIEMENS HED41B040 is an ED-Frame molded case circuit breaker used for industrial circuit protection. It safeguards electrical equipment from overloads and short circuits in applications requiring a 40 A amp rating and a 25kA interrupting capacity at 277V AC.

What are the specifications of the SIEMENS HED41B040 circuit breaker?

The SIEMENS HED41B040 is a 40 A amp, ED-Frame breaker from the HED4 series. It has a maximum AIR rating of 25kA at 277V AC, a fixed instantaneous trip, load-side lug terminal connection, and supports any phase connection. The manufacturer part number is HED41B040.

Where to buy the SIEMENS HED41B040 circuit breaker worldwide?

You can source the SIEMENS HED41B040 circuit breaker through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine Siemens breakers for your industrial applications.

How to select the correct SIEMENS molded case circuit breaker for an application?

To select the correct Siemens MCCB, match the amp rating (e.g., 40 A), voltage (277V AC), and interrupting capacity (25kA) to your system's requirements. Verify the frame type (ED-Frame), trip characteristics (fixed instantaneous), and terminal connections (load-side lug) align with your panel design.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens ed-frame siemens molded case circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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