33673 | MN undervoltage release, Compact NS 630b to Compact NS 3200, 380 VAC to 480 VAC 50/60 Hz – Schneider Electric

Name: Schneider Electric MN Undervoltage Release 33673
Brand: Schneider Electric
SKU: 33673
Price: 6482.96 INR
Availability: InStock

SKU: 33673

Original price was: ₹12,232.00.Current price is: ₹6,482.96. Excl. GST

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The Schneider Electric 33673 MN undervoltage release is a protection accessory designed for Compact NS 630b to Compact NS 3200 circuit breakers. Operating at 380 VAC to 480 VAC, 50/60 Hz, this undervoltage release automatically trips the breaker when the supply voltage drops below a preset threshold, safeguarding connected equipment in industrial and commercial power distribution systems. As a genuine Schneider Electric auxiliary accessory, it ensures reliable coordination with the Masterpact and Compact NS series for enhanced system protection.

📋 Technical Specifications

Parameter	Value
Product Type	MN Undervoltage Release
Part Number / SKU	33673
Brand	Schneider Electric
Compatible Breakers	Compact NS 630b to Compact NS 3200
Rated Voltage	380 VAC to 480 VAC
Frequency	50/60 Hz
Category	Auxiliaries and Accessories

🏗 Applications

Industrial Power Distribution

Provides undervoltage protection for Compact NS series breakers in factory and plant electrical panels.

Commercial Building Switchgear

Used in LT panel boards and main distribution boards for voltage monitoring and automatic tripping.

Motor Control Centers

Ensures motor feeders are disconnected during undervoltage conditions to prevent equipment damage.

CPWD / PWD / MES Tender Supply

Compliant auxiliary for Schneider breaker-based switchboards specified in government electrical tenders.

Bulk Distributor Supply

Stocked for electrical wholesalers and panel builders requiring genuine Schneider undervoltage releases.

Bulk Supply · Tender Orders · Pan-India & International Delivery

Trusted by contractors, electrical distributors, and government buyers across India. Wholesale pricing for bulk orders. GST invoice provided. International shipping to UAE, Singapore, UK, USA, and other countries.

📞 Request Bulk Quote✅ GST Invoice✈ International Shipping

❓ Frequently Asked Questions

Q: Which Schneider circuit breaker models is the 33673 MN undervoltage release compatible with?

A: This MN undervoltage release is designed for use with Schneider Compact NS 630b to Compact NS 3200 circuit breakers.

Q: What voltage range does this undervoltage release operate at?

A: The MN undervoltage release is rated for 380 VAC to 480 VAC at 50/60 Hz supply frequency.

Q: What is the function of an MN undervoltage release in a circuit breaker?

A: An MN undervoltage release automatically trips the circuit breaker when the supply voltage drops below a preset threshold, protecting downstream equipment from damage due to low voltage conditions.

Q: Is this a genuine Schneider Electric product or a third-party replacement?

A: This is a genuine Schneider Electric MN undervoltage release (part number 33673), manufactured as an original auxiliary accessory for Compact NS series breakers.

Q: Can this undervoltage release be used with both 50 Hz and 60 Hz systems?

A: Yes, the 33673 MN undervoltage release is rated for both 50 Hz and 60 Hz supply frequencies, making it suitable for Indian (50 Hz) and international (60 Hz) applications.