Chint S9-1 shunt release accessory for remote tripping of compatible Chint NB1, NBH8, NB1L and NBH8LE miniature circuit breakers and RCBOs.
£34.95
The Chint S9-1 is a compact and reliable shunt release accessory designed to remotely trip compatible Chint miniature circuit breakers and RCBOs when a control voltage is applied. It is used where electrical circuits need to be opened from a remote switch, control relay, emergency stop circuit or automation system.
Designed for use with compatible Chint NB1, NBH8, NB1L and NBH8LE series protective devices, the S9-1 mounts to the left-hand side of the breaker using a dedicated pin connection. This makes it a practical accessory for distribution boards, control panels and switchboards requiring remote disconnection functionality.
With a rated control voltage suitable for AC 230/400 V applications, the S9-1 provides dependable remote tripping performance while maintaining a compact DIN rail accessory format. It is ideal for safety circuits, building services panels and industrial electrical systems where fast remote circuit isolation is required.
Shunt releases such as the Chint S9-1 allow compatible circuit breakers or RCBOs to be tripped remotely. When the correct control voltage is applied, the accessory mechanically operates the protective device, opening the circuit without requiring manual operation at the distribution board.
This makes the S9-1 especially useful in emergency stop systems, fire alarm interfaces, building management systems and industrial control panels where remote disconnection improves safety, automation and response times.
| Voltage | 230 V |
|---|---|
| Manufacturer | Chint |
| Series | S9 |
| Model | S9-1 |
| Product type | Shunt release accessory |
| Function | Remote tripping when control voltage is applied |
| Compatible devices | NB1, NBH8, NB1L and NBH8LE series MCBs and RCBOs |
| Rated operating voltage | AC 230/400 V, 50/60 Hz |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 4 kV |
| Dielectric test voltage | 2 kV for 1 minute |
| Protection degree | IP20 |
| Pollution degree | 2 |
| Electrical life | 4,000 operations |
| Mechanical life | 4,000 operations |
| Terminal connection | Cable |
| Terminal capacity | 2.5 mm² |
| Tightening torque | 0.8 N·m |
| Mounting position | Left side of compatible MCB or RCBO |
| Mounting type | DIN rail installation |
| Operating temperature | -5°C to +40°C |
| Storage temperature | -25°C to +70°C |
| Dimensions (H × W × D) | approx. 82 × 18 × 49.5 mm |
| Standard | IEC/EN 60947-5-1 |
The Chint S9-1 is used to remotely trip compatible Chint MCBs and RCBOs when a control voltage is applied.
The S9-1 is designed for use with compatible Chint NB1, NBH8, NB1L and NBH8LE series miniature circuit breakers and RCBOs.
The S9-1 is suitable for AC 230/400 V control voltage applications at 50/60 Hz.
The S9-1 mounts on the left side of a compatible Chint MCB or RCBO using the dedicated connection interface.
Shunt releases are commonly used in emergency stop circuits, remote isolation systems, fire alarm interfaces, building management systems and industrial control panels.
Chint S9 shunt releases are widely used by electricians, panel builders and maintenance engineers to provide dependable remote tripping and safe circuit isolation within low voltage electrical distribution systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...