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EV1143 ABB IS2 AM2 Interlock with 1 NC Contact
ABB EV1143 is a mechanical door interlock with one NC auxiliary contact for compatible IS2 and AM2 industrial enclosures, featuring a 10 A rated thermal current, testing bypass and automatic reset when the door closes.
£29.43
Why Choose the ABB EV1143 IS2/AM2 Interlock?
The ABB EV1143 is a mechanical door interlock supplied with one NC auxiliary contact for compatible ABB industrial automation enclosures. Designed for ABB System pro E control IS2 and AM2 cabinets, it provides a practical way to operate auxiliary electrical circuits according to the position of the enclosure door.
The EV1143 incorporates an interlock mechanism together with one normally closed contact. In suitable cabinet circuits, the contact can be used to control functions associated with door position, including release coils and other auxiliary equipment. Additional compatible ABB contacts can also be incorporated where the finished application requires extra switching functions.
Designed for industrial control-panel applications, the EV1143 supports a testing bypass function that permits commissioning work with the enclosure door open, followed by automatic reset when the door is closed. The interlock system complies with EN 60947-5-1, is UL approved and is specified for operating temperatures from -25 °C to +65 °C.
Key Advantages
- Combines a mechanical door interlock and one NC contact in a single ABB accessory.
- Designed for compatible ABB IS2 and AM2 industrial enclosures.
- Allows auxiliary circuits to respond automatically to enclosure door position.
- Supports a testing bypass function with automatic reset after the door is closed.
- Additional compatible NC or NO contacts can be added for extended control functions.
- Industrial operating range of -25 °C to +65 °C.
Key Features
- ABB System pro E control enclosure accessory.
- Mechanical interlock + 1 NC auxiliary contact.
- Suitable for IS2 Enclosures for Automation.
- Suitable for compatible AM2 cabinets.
- Testing bypass capability for commissioning with the door open.
- Automatic restoration of normal operation when the enclosure door closes.
- Compatible with additional EV1144 NC and EV1145 NO contacts.
- Additional-contact installation uses compatible EV1146 46 mm fixing screws.
- 10 A rated thermal current.
- Complies with EN 60947-5-1.
- UL approved.
Door-Position Control for Industrial Enclosures
Mechanical enclosure interlocks can increase passive safety and provide automatic control of auxiliary circuits according to cabinet door position. The ABB EV1143 combines the interlock mechanism with an NC contact, allowing suitable control functions to change state when the enclosure is opened or closed.
The system can be expanded using compatible ABB auxiliary contacts. An additional EV1144 NC contact can be used for applications such as undervoltage-coil control, while suitable contacts can also be incorporated for internal lighting, fans or air-conditioning circuits. The testing bypass enables authorised commissioning work with the door open and automatically returns to the normal operating condition when the door is subsequently closed.
Typical Applications
- Industrial automation and control cabinets.
- Door-dependent auxiliary circuit control.
- Switchgear and electrical distribution enclosures.
- Machine-control and PLC cabinets.
- Enclosure lighting and thermal-management control circuits.
- ABB IS2 and AM2 industrial enclosure installations.
Technical Specifications
| Extended product type | IS2-EV1143 |
|---|---|
| ABB order code | EV1143 |
| ABB product group | 321506-Turati - Is |
| Product type | Mechanical enclosure interlock |
| Configuration | Interlock + 1 NC contact |
| Included auxiliary contacts | 1 normally closed contact |
| Rated thermal current (Ith) | 10 A |
| Auxiliary contact capacity at 110 V | 6 A |
| Auxiliary contact capacity at 230 V | 3 A |
| Auxiliary contact capacity at 400 V | 2 A |
| Auxiliary contact capacity at 600 V | 1.2 A |
| Maximum terminal capacity | 2 × 1.5 mm² or 1 × 3 mm² |
| Operating temperature | -25 °C to +65 °C |
| Standard | EN 60947-5-1 |
| Approval | UL |
| Suitable for | AM2 Cabinets and IS2 Enclosures for Automation |
| Material | Pickled sheet steel |
| EAN / GTIN | 8015646689061 |
| Package quantity | 1 piece |
Frequently Asked Questions
What is the ABB EV1143?
The ABB EV1143 is a mechanical enclosure interlock supplied with one NC auxiliary contact for compatible ABB IS2 and AM2 industrial cabinets.
What contact is supplied with the ABB EV1143?
The EV1143 is supplied with one normally closed auxiliary contact as part of the interlock assembly.
Can additional contacts be added to the ABB EV1143?
Yes. Compatible EV1144 NC and EV1145 NO contacts can be used for additional auxiliary functions. ABB specifies the EV1146 46 mm fixing screws for additional-contact installation.
Can the EV1143 be bypassed during testing?
Yes. The interlock supports exclusion during testing so commissioning can be carried out with the enclosure door open, with automatic recovery when the door is closed.
What is the operating temperature range of the ABB EV1143?
The EV1143 interlock system is specified for an operating temperature range of -25 °C to +65 °C and complies with EN 60947-5-1.
Trusted Industrial Enclosure Accessories from ABB
ABB enclosure interlocking accessories provide panel builders, automation engineers and system integrators with coordinated components for controlling auxiliary circuits according to cabinet door position while supporting safe commissioning and professional industrial enclosure construction.
