Chint original brand SHT-X3 AC 230V 400V AC DC 24V 48V CHNT Shunt Release

1. Major function

To be assembled with the circuit breaker to achieve remote shunt trip

2. Parameters and performance

Rated insulation voltage (Ui): 500V; Rated operation current under different rated operation voltage (see Table 1): Utilization category: AC-12, DC-12.

Action characteristics: within the range of 70% ~ 110% of the rated control supply voltage, the release should operate reliably to open the circuit breaker. Figure 1 shows the wiring diagram for the release. When the release is open, terminal C2 and 12 shall be connected, and the external security indicator shall light up; when the release is closed, terminal C2 and 14 shall be connected, and the external warning indicator shall light up; when the release is closed, and the external button is connected, the release shall trip and drive the circuit breaker to trip and be opened. Meanwhile, the release indicator shall display trip mark.Mechanical life: operating life of the release is ≥ 4000 cycles.

6. Product catalog

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Chint SHT-X3 Shunt Release

Name: Chint SHT-X3 Shunt Release
Brand: Chint
SKU: 1770403297245536256

Brand Name:Chint
Place of Origin:China
Model Number:SHT-X3
rated voltage:AC 230V 400V AC DC 24V 48V
Power:3A, 6A

SKU: 1770403297245536256 Category: Chint MCB

What is SHT-X3 Shunt Release?

The Chint SHT-X3 Shunt Release is a shunt trip release - an electrical accessory that mounts on MCBs (Miniature Circuit Breakers) to enable remote tripping. When control voltage (230V / 400V) is applied, the shunt release instantly trips the MCB, disconnecting the circuit.

Common Applications

Emergency Stop - Central emergency shutdown of multiple circuits
Fire Safety Systems - Interface with fire alarm to cut non-essential power
Remote Control - Switch off circuits from control room
Automation Integration - Controlled by BMS or PLC systems
Alarm Integration - Trip on security/intrusion alarms

How It Works

The shunt release contains an electromagnet coil. When energized with control voltage, the coil creates a magnetic field that mechanically trips the MCB's operating mechanism. The MCB latches in the OFF position until manually reset.

Technical Specifications

Model	SHT-X3
Control Voltage	230V / 400V
Compatibility	Chint NXB, NB1, NBH8 series MCBs
Mounting	Left side mounting on MCB
Operation	Instant trip on voltage application

Installation Note

The SHT-X3 mounts on the left side of compatible MCBs. It requires a control voltage source (separate from the protected circuit). For emergency stop applications, use normally-open push buttons in series with the control voltage supply.