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.
ABB cal18-11b side mounted instantaneous aux contact block
ABB CAL18-11B side-mounted auxiliary contact block with 1 NO and 1 NC instantaneous contacts designed for ABB AF series industrial block contactors.
£19.51
Why Choose the ABB CAL18-11B Auxiliary Contact Block?
The ABB CAL18-11B (1SFN010720R3311) is a genuine side-mounted auxiliary contact block designed to expand the control and signalling capabilities of compatible ABB AF series contactors. As part of ABB's trusted range of contactor accessories, it provides one normally open (NO) and one normally closed (NC) instantaneous auxiliary contact, making it ideal for industrial control, automation and monitoring applications.
The CAL18-11B is specifically designed as an additional auxiliary contact block, allowing a second side-mounted contact block to be fitted alongside an existing CAL18 or CAL19 unit where extra control contacts are required. Its compact design, robust construction and secure screw terminal connections ensure dependable performance in demanding industrial environments.
Suitable for compatible ABB AF series contactors, the CAL18-11B is widely used by panel builders, OEM machine manufacturers and maintenance engineers for electrical interlocking, PLC feedback, signalling and auxiliary control circuits.
Key Advantages
- Genuine ABB auxiliary contact block.
- 1 NO + 1 NC instantaneous auxiliary contacts.
- Designed as an additional side-mounted auxiliary block.
- Compatible with ABB AF series contactors.
- Reliable screw terminal connections.
- Ideal for signalling, feedback and interlocking applications.
Key Features
- ABB CAL18 auxiliary contact block series.
- Model CAL18-11B.
- Two-pole auxiliary contact block.
- One normally open (1 NO) contact.
- One normally closed (1 NC) contact.
- Instantaneous switching contacts.
- Screw terminal connections.
- Side-mounted installation for compatible ABB AF contactors.
Reliable Auxiliary Switching for Industrial Automation
Auxiliary contact blocks provide additional switching contacts for industrial control circuits, allowing contactors to perform signalling, electrical interlocking, PLC feedback and equipment status monitoring without affecting the main power circuit.
The ABB CAL18-11B has been specifically engineered to operate as a second auxiliary contact block on compatible AF contactors, ensuring dependable switching performance, simple installation and long service life in industrial automation systems.
Typical Applications
- Motor control centres (MCCs).
- Industrial control panels.
- PLC automation systems.
- OEM machinery.
- Electrical interlocking circuits.
- Status indication and signalling systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Terminal Type | Screw | |
|---|---|---|
| IP Rating | IP20 | |
| Poles | 2-pole | |
| Device Type | Auxiliary contact block | |
| Series | CAL18 Auxiliary Contact Blocks | |
| Part number | 1SFN010720R3311 | |
| Product type | Auxiliary contact block | |
| Contact configuration | 1 NO + 1 NC | |
| Number of poles | 2-pole | |
| Mounting type | Side mounted | |
| Terminal type | Screw terminals | |
| Rated operational voltage | 24 to 690 V AC | |
| Protection rating | IP20 | |
| Wire stripping length | 9 mm | |
| Tightening torque | 1 N·m | |
| Dimensions (H × W × D) | approx. 74 × 64.5 × 17.1 mm | |
| Weight | approx. 0.04 kg | |
| EAN | 7320500256312 |
Frequently Asked Questions
What is the ABB CAL18-11B used for?
The CAL18-11B provides additional auxiliary contacts for signalling, PLC feedback and control functions on compatible ABB AF contactors.
What contact configuration does it provide?
The auxiliary contact block includes one normally open (1 NO) and one normally closed (1 NC) instantaneous contact.
What is the difference between the CAL18-11 and CAL18-11B?
The CAL18-11B is designed as an additional side-mounted auxiliary contact block, allowing a second auxiliary block to be installed on compatible ABB AF contactors.
What type of terminals does it use?
The CAL18-11B uses secure screw terminal connections for reliable industrial wiring.
Is this a genuine ABB accessory?
Yes. The CAL18-11B (1SFN010720R3311) is an original ABB auxiliary contact block designed specifically for compatible ABB AF contactors.
Trusted by Control Panel Builders Worldwide
ABB auxiliary contact blocks are trusted by panel builders, automation engineers and OEM machine builders for dependable switching performance, reliable signalling and seamless integration into industrial control systems.
