SHT-X3 Shunt Release

SHT X3 Accessories (Final Power Distribution) Front

SHT X3 Accessories (Final Power Distribution) Side

SHT X3 Accessories (Final Power Distribution)

SHT X3 Accessories (Final Power Distribution) Front

SHT X3 Accessories (Final Power Distribution) Side

SHT X3 Accessories (Final Power Distribution)

SHT-X3 Shunt Release

The SHT-X3 Shunt Release is designed to provide remote trip functionality for the NXB-125 circuit breaker. When energized, it immediately trips the breaker to disconnect the circuit, ensuring fast fault isolation and enhanced safety. Operating reliably within 70%–110% of the rated control voltage, the SHT-X3 offers a rated insulation voltage of 500V, mechanical life of over 4000 cycles, and easy assembly via TH35-7.5 DIN rail mounting, making it an ideal accessory for remote control and automation systems.

Product Information

Function: Enables remote tripping of circuit breakers during voltage faults or emergency control
Applicable Circuit Breaker: NXB-125
Rated Insulation Voltage (Ui): 500V
Rated Operating Voltage (Ue):
- AC 400V
- AC 230V
- AC/DC 48V
- AC/DC 24V
Rated Operating Current (Ie):
- 3A at AC 400V
- 6A at AC 230V
- 3A at AC/DC 48V
- 6A at AC/DC 24V
Utilization Category: AC-12, DC-12
Operating Voltage Range: Reliable operation within 70%–110% of rated control supply voltage
Action Characteristics:
- Trips circuit breaker when external button is pressed
- Provides indicator signal for open/closed/tripped states
- Integrates with external security and warning indicators
Mechanical Life: ≥4000 cycles
Mounting Method:
- Remove left-side cover of NXB-125 breaker
- Mount assembly on TH35-7.5 steel DIN rail
Dimensions (mm):
- Height: 81.0 ± 1.4
- Width: 18 ± 0.3
- Depth: 75.2 ± 1.2
Mounting holes: 45 ± 0.3 spacing
Certifications: RoHS, REACH

Name

Size

Release time

Operate

SHT-X3-ACCESSORIES-(FINAL-POWER-DISTRIBUTION)-Catalog.pdf

338.14KB

2025-12-24

Download

Name

Size

Release time

Operate

2004-SHT-X3-Accessories (Final Power Distribution)-Manual.pdf

565.43KB

2024-09-22

Download

Name

Size

Release time

Operate

2403-SHT-X3-Accessories(Final power distribution)-REACH Declaration Certificate.pdf

739KB

2024-09-22

Download

Need Support From Us?

Blog

Blog

Find expert perspectives on the trends and technologies driving your business.

View Now

Download Center

Download Center

Download new and previously released documents including product document, solutions, cases, coporate report.

View Now

Contact Us

Reach out to us to receive more information, technical support, assistance with complaints and more.

Collapsed

Expand

FAQs

What is the function of the SHT-X3 Shunt Release?

The SHT-X3 provides remote tripping capability for NXB-125 circuit breakers. When voltage is applied, it releases the mechanism, causing the breaker to trip and safely disconnect the circuit.

How does the SHT-X3 indicate its operational status?

When open, terminals C2–12 are connected to light the security indicator; when closed, terminals C2–14 light the warning indicator. Upon tripping, the trip indicator visibly marks breaker status.

What voltages can the SHT-X3 operate under?

It supports AC 400V, 230V, and AC/DC 48V or 24V, functioning reliably within 70%–110% of its rated supply voltage.

How is the SHT-X3 installed?

It easily assembles on the left side of the NXB-125 breaker, then mounts on a TH35-7.5 DIN rail.

What makes the SHT-X3 suitable for industrial and automation systems?

Its remote control capability, long mechanical life (≥4000 cycles), and compatibility with control indicators make it ideal for automated monitoring and protective control systems.