MX Shunt Trip Voltage Release 100V-480V for Breakers MX Shunt Trip Voltage Release 100V-480V for Breakers
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MX Shunt Trip Voltage Release 100V-480V for Breakers MX Shunt Trip Voltage Release 100V-480V for Breakers
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MX Shunt Trip Voltage Release 100V-480V for Breakers
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MX Shunt Trip Voltage Release 100V-480V for Breakers
MX Shunt Trip Voltage Release 100V-480V for Breakers
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MX Shunt Trip Voltage Release 100V-480V for Breakers

33662MX shunt trip release is for Compact NS 630b to Compact NS 3200 devices. Its rated voltage is 200VDC to 250VDC or 200VAC to 250VAC 50/60Hz. It is an auxiliary used for emergency off or remote opening applications. This auxiliary opens the circuit breaker when the control voltage Un rises above 70% of its rated voltage Un. It complies with IEC 60947-2 standard. Compact NS 630b to Compact NS 3200 device can be equipped with 1 MX or 1 MN auxiliary.

Category: Circuit Breaker Auxiliaries
  • Description
  • Technical Datasheet & Downloads
  • Technical FAQ & Selection Guide
Description

  33662MX shunt trip release is for Compact NS 630b to Compact NS 3200 devices. Its rated voltage is 200VDC to 250VDC or 200VAC to 250VAC 50/60Hz. It is an auxiliary used for emergency off or remote opening applications. This auxiliary opens the circuit breaker when the control voltage Un rises above 70% of its rated voltage Un. It complies with IEC 60947-2 standard. Compact NS 630b to Compact NS 3200 device can be equipped with 1 MX or 1 MN auxiliary.

 

Main
Range ComPacT
Range of product ComPacT NS630b…1600 new generation
ComPacT NS1600b…3200 new generation
Device short name MX
Product or component type Voltage release
Device application Control
Voltage release type Opening coil
Instantaneous voltage release
control type Standard
[Uc] control circuit voltage 200…250 V AC 50/60 Hz
200…250 V DC
Circuit breaker mounting mode Fixed
Range compatibility ComPact ComPact NS630b…1600
ComPact ComPact NS1600b…3200
Complementary
Operating threshold 0.7…1.1 x Un opening
Response time 50 ms +/- 10 % for Compact NS630b…1600
50 ms +/- 10 % for Compact NS1600b…3200
55 ms +/- 10 % for MasterPact NT
70 ms +/- 10 % for MasterPact NW
Supply holding power 4.5 VA
Accessory / separate part category Spare part for MasterPact NT
Spare part for MasterPact NW
Spare part for ComPacT NS630b…1600 new generation
Spare part for ComPacT NS1600b…3200 new generation
Packing Units
Number of Units in Package 140
Package Dimension 38x31x29 cm
Package Weight 18.5 kg

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for MX Shunt Trip Voltage Release 100V-480V for Breakers.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

A

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

A

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

A

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

A

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

A

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.

Related products

MN Undervoltage Release 200-250V for Compact NS
MN Undervoltage Release 200-250V for Compact NS

MN Undervoltage Release 200-250V for Compact NS

33671 MN undervoltage release is for Compact NS 630b to Compact NS 3200 devices. Its rated voltage is 200VDC to
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