33671 | MN undervoltage release, Compact NS 630b to 3200, 200 VDC to 250 VDC, 200 VAC to 250 VAC 50/60 Hz – Schneider Electric

Name: Schneider Electric Compact NS Undervoltage Release 33671
Brand: Schneider Electric
SKU: 33671
Price: 6482.96 INR
Availability: InStock

SKU: 33671

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

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The Schneider Electric 33671 MN undervoltage release is an auxiliary accessory designed for Compact NS630b to NS3200 circuit breakers. This undervoltage release operates across a dual-range supply of 200 VDC to 250 VDC and 200 VAC to 250 VAC at 50/60 Hz, making it suitable for industrial and commercial power distribution systems requiring automatic tripping on voltage loss. As a genuine Schneider Electric accessory, it ensures reliable protection and coordination within high-current switchgear assemblies.

📋 Technical Specifications

Parameter	Value
Product Name	MN Undervoltage Release
Part Number / SKU	33671
Brand	Schneider Electric
Compatible Breaker Range	Compact NS630b to NS3200
Control Voltage (AC)	200 VAC to 250 VAC, 50/60 Hz
Control Voltage (DC)	200 VDC to 250 VDC
Type	MN Undervoltage Release
Category	Auxiliaries and Accessories

🏗 Applications

Industrial Power Distribution

Provides undervoltage protection for Compact NS630b to NS3200 breakers in industrial switchboards and MCCs.

Commercial Building Main Switchgear

Ensures automatic breaker tripping on mains voltage loss in commercial building distribution panels.

CPWD / PWD / MES Tender Supply

Compliant auxiliary component for government infrastructure projects requiring undervoltage release functionality.

Bulk Distributor Supply

Ideal for electrical distributors stocking Schneider accessories for large-frame breaker installations across India.

Data Center & Critical Power Systems

Automatic disconnection of mains supply upon undervoltage to protect sensitive equipment and ensure orderly power-down.

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 Compact breaker models is the 33671 MN undervoltage release compatible with?

A: This MN undervoltage release is compatible with Schneider Electric Compact NS630b, NS800, NS1000, NS1250, NS1600, NS2000, NS2500, and NS3200 circuit breakers.

Q: What is the operating voltage range for this undervoltage release — can it work on both AC and DC systems?

A: Yes, this release supports dual-supply operation: 200 VAC to 250 VAC at 50/60 Hz and 200 VDC to 250 VDC, making it suitable for both AC and DC control circuits.

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

A: An MN undervoltage release automatically trips the circuit breaker when the control voltage drops below a preset threshold, preventing equipment operation under low-voltage or power-loss conditions.

Q: Is this accessory suitable for use in main incomer breaker applications in large switchboards?

A: Yes, the 33671 MN release is designed for the Compact NS630b to NS3200 range, which are commonly used as main incomer and feeder breakers in industrial and commercial switchboards requiring undervoltage protection.

Q: Does this product work with 50 Hz or 60 Hz systems?

A: The MN undervoltage release operates on both 50 Hz and 60 Hz systems within the specified AC voltage range of 200 VAC to 250 VAC.

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