Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
nr2-d33 chint mounting bracket to fit nr2-93 (40a to 93a) thermal overload relay
Chint NR2-D33 thermal overload relay designed to provide adjustable motor overload and phase failure protection for industrial control systems.
£9.81
Why Choose the Chint NR2-D33 Thermal Overload Relay?
The Chint NR2-D33 is a robust thermal overload relay designed to provide reliable protection for three-phase AC motors against overload and phase failure conditions. As part of the trusted Chint NR2 thermal overload relay series, it offers adjustable motor protection for industrial control systems, machinery and automation applications.
This overload relay uses a three-phase bimetal protection structure with continuously adjustable current settings, allowing accurate protection of motors under different operating conditions. The NR2 series includes temperature compensation, trip indication, test functionality and selectable manual or automatic reset modes to simplify installation and maintenance.
The Chint NR2-D33 is suitable for use with compatible contactors in motor starter assemblies and electrical control panels. It provides dependable motor protection for pumps, fans, conveyors and industrial equipment where reliable overload monitoring is required.
Key Advantages
- Reliable thermal overload protection for three-phase AC motors.
- Adjustable current protection for flexible motor control applications.
- Protects against motor overload and phase failure conditions.
- Three-phase bimetal construction for dependable operation.
- Temperature compensation improves protection accuracy.
- Compatible with Chint contactor-based motor starter systems.
Key Features
- Chint NR2 thermal overload relay series.
- Three-phase bimetal thermal protection design.
- Continuously adjustable overload current setting.
- Class 10A tripping characteristic.
- Manual and automatic reset selection.
- Built-in test and stop buttons.
- Visual trip indication.
- Electrically separated auxiliary contacts with 1NO + 1NC configuration.
Reliable Motor Protection for Industrial Applications
Thermal overload relays such as the Chint NR2-D33 monitor motor current and respond when sustained overload conditions occur, helping prevent excessive heating and improving the operational reliability of industrial electrical systems.
The NR2 series is designed for automation engineers, panel builders and maintenance professionals requiring dependable motor protection with straightforward adjustment, diagnostics and integration into contactor-based control systems.
Typical Applications
- Industrial motor starters.
- Pumps and water handling systems.
- Fans and ventilation equipment.
- Material handling conveyors.
- Production machinery.
- Industrial automation control panels.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Accessory | |
|---|---|---|
| Current Range | 40–93 A | |
| Trip Class | Class 10A | |
| Mounting Type | Direct mount on contactor | |
| Manufacturer | Chint | |
| Series | NR2 Thermal Overload Relays | |
| Model | NR2-D33 | |
| Product type | Thermal overload relay | |
| Protection function | Motor overload and phase failure protection | |
| Rated frequency | 50 / 60 Hz | |
| Rated operational voltage | Up to 690 V AC | |
| Tripping class | 10A | |
| Mounting type | Plug-in / independent mounting with accessories | |
| Auxiliary contacts | 1NO + 1NC | |
| Standard | IEC/EN 60947-4-1 |
Frequently Asked Questions
What is the Chint NR2-D33 used for?
The Chint NR2-D33 is a thermal overload relay used to protect three-phase AC motors against overload and phase failure conditions in industrial control systems.
What protection does the NR2-D33 provide?
The relay provides thermal overload protection and phase failure protection for connected motors.
What voltage can the Chint NR2 series operate at?
The Chint NR2 series is designed for operation up to 690 V AC with a rated frequency of 50 / 60 Hz.
Can the overload current setting be adjusted?
Yes, the NR2 series features continuously adjustable current settings to provide suitable motor protection for different applications.
Where is the Chint NR2-D33 installed?
The NR2-D33 is typically installed with compatible contactors inside electrical control panels and motor starter assemblies.
Trusted by Industrial Control Professionals
Chint NR2 thermal overload relays provide dependable motor protection for industrial automation systems, helping improve equipment reliability and operational safety.
