Legrand 420312 MCCB DPX3 250 MCCB 4 Poles Breaking Capacity Icu 25kA (400 V~) 40A

Buy Legrand 420312 MCCB – DPX³ 250, 40 A, 4‑Pole, 25 kA (400 V~) Electronic‑Release MCCB

Available at ARP Impex – Leading Exporter of Genuine Legrand DPX³ 250 Series MCCBs

The Legrand 420312 is a 4‑pole (3‑phase + neutral) electronic-release MCCB with a rated current of 40 A and a robust short-circuit breaking capacity of 25 kA at 400 V AC. Designed for precise overload and short‑circuit protection, it is suitable for medium-duty commercial and industrial applications.

Specifications

• Product Code: Legrand 420312
• Series: DPX³ 250 (electronic-release variant)
• Rated Current: 40 A
• Poles: 4‑Pole (3 Phase + Neutral)
• Breaking Capacity (Icu): 25 kA at 400 V AC 
• Trip Unit: Electronic release (LSI/S2 type) with adjustable thermal (0.4–1×In) and magnetic (1.5–10×Ir) settings 
• Voltage Rating: Up to 690 V AC
• Mounting Type: Fixed front-terminal (supports cable lug up to 150 mm²) 
• Standards Compliance: IEC 60947‑2, NEMA AB‑1 compliant 

Product Features :

Protection against overloads:

• lr adjustable from 0.4 to 1 x ln
• Tr adjustable from 3 to 15s

Protection against short circuits:

• lsd adjustable from 1.5 to 10 x lr
• Tsd adjustable from 0 to 0.5s

Main Features :

• MCCBs are used for switching, remote tripping and protection of low voltage electrical systems
• MCCBs can be fitted with accessories and DPX3 common auxiliaries
• They are supplied with insulated shileds, screw terminals 120 mm2 max. (flexible cable) or 150 mm2 max. rigid cable with accessories
• Conform to IEC 60947-2

Key Features

• Electronic trip release ensures high precision in both overload and short-circuit protection
• Adjustable thermal and magnetic settings allow customized protection response 
• Compact 4‑pole frame suitable for panel integration with status indicators and auxiliary contact options
• Designed for durable, maintenance-friendly installation in both rail and plate mounting formats

Applications

Ideal for use in:

• Industrial and commercial panels where full neutral protection is required
• Motor control systems and HVAC installations
• Serviceable switchboards in factories, offices, shopping centers, and infrastructures
• Utility feeders in OEM panels requiring precise tripping characteristics

Global Export by ARP Impex

We ship to global markets including UAE, Saudi Arabia, Nigeria, UK, Germany, Singapore, USA, Brazil, Australia, and many more.

• Middle East : Bahrain, Egypt, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, UAE
• African Countries : Morocco, Tunisia, Ghana, Nigeria, Senegal, Kenya, Mauritius, Rwanda, Tanzania, Uganda, Zambia, Botswana, Eswatini, Lesotho, Namibia, South Africa,
• European Countries : Germany, UK, France, Italy, Netherlands, Spain, Belgium, Poland, Czech Republic, Sweden, Denmark, Finland, Portugal, Hungary, Slovakia, Slovenia, Romania, Austria
• Asian Countries : Japan, South Korea, Singapore, Malaysia, Vietnam, Indonesia, Thailand, Philippines, Bangladesh, Sri Lanka, Nepal
• Pan Pacific Countries : USA, Canada, Mexico, Brazil, Chile, Colombia, Peru, Panama, Australia, New Zealand, Singapore

Why Choose ARP Impex?

• 100% genuine Legrand products with verified manufacturing–grade certification
• Competitive export pricing and ready inventory
• Technical guidance for correct product sizing and configuration
• Streamlined export logistics and documentation support
• Preferred supplier for EPC firms, panel builders, OEMs, and consultants worldwide

For inquiries and quotes on Legrand 420312 DPX³ 250 – 40 A, 4‑Pole Electronic‑Release MCCB (25 kA), including datasheets and delivery timelines.