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1SFA611610R2020 ABB MCB-02B 2 NC Rear-Mount Double Contact Block
ABB MCB-02B is a rear-mounted double contact block with two normally closed contacts, screw connections, 690 V rated insulation voltage and 10 million operation mechanical durability for compatible ABB Modular pilot devices.
£8.15
Why Choose the ABB MCB-02B Contact Block?
The ABB MCB-02B is a modular double contact block with two normally closed (2 NC) contacts, designed for rear mounting with compatible ABB pilot devices. It provides two independent break contacts in one compact assembly, making it suitable for industrial control, interlocking and machine-control circuits.
The MCB-02B uses screw connections for secure field wiring and is designed as a non-illuminated contact element. With a rated insulation voltage and maximum rated operational voltage of 690 V, it provides robust electrical performance for demanding industrial control applications.
Designed for rear mounting, the MCB-02B can be used with compatible ABB Modular pilot-device operators and is also suitable for specified ABB plastic enclosure and DIN-rail applications. Its compact double-contact construction provides two NC switching functions while occupying a single modular contact-block position. ABB identifies this exact product under order code 1SFA611610R2020.
Key Advantages
- 2 NC double contact block provides two normally closed switching functions.
- Rear-mounting design for compatible ABB Modular pilot devices.
- Screw connections provide secure and straightforward field wiring.
- Rated insulation voltage up to 690 V.
- Rated operational current of 6 A at 230 V AC in AC-15 applications.
- High 10 million operation mechanical durability.
- Compact double-contact construction for space-efficient industrial control assemblies.
Key Features
- ABB MCB-02B contact block.
- Double contact block construction.
- 2 NC contact configuration.
- Rear mounting.
- Non-illuminated design.
- Screw electrical connections.
- 690 V rated insulation voltage.
- 6 kV rated impulse withstand voltage.
- 10 million operations mechanical durability.
- Designed for compatible ABB Modular control and signalling devices.
Reliable Normally Closed Switching for Industrial Controls
The ABB MCB-02B provides two normally closed contacts within a single double contact block. In their normal state the contacts provide closed electrical paths, opening when the associated compatible operator is actuated. This makes the contact block useful for machine-control, interlocking and other circuits requiring two NC switching functions from one operator.
Its compact rear-mounted design simplifies integration with compatible ABB Modular pilot devices, while screw connections support straightforward installation and maintenance. The combination of robust electrical ratings and high mechanical durability makes the MCB-02B suitable for repeated operation in industrial machinery and automation systems.
Typical Applications
- Industrial pushbutton control circuits.
- Machine stop and control functions.
- Selector switch assemblies.
- Electrical interlocking circuits.
- Auxiliary control and signalling circuits.
- Industrial operator stations and OEM control panels.
Technical Specifications
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| Contacts | 2NC | |
|---|---|---|
| Device Type | Contact Block | |
| Product Series | ABB Modular | |
| Illumination | Non-illuminated | |
| Series | MCB / Modular Pilot Devices | |
| ABB order code | 1SFA611610R2020 | |
| Product group | 312001 – Pilot Devices (Secrl) | |
| Product type | Contact block | |
| Contact block type | Double contact block | |
| Contact configuration | 2 NC | |
| Normally closed contacts | 2 | |
| Mounting type | Rear mounting | |
| Illumination | Non-illuminated | |
| Connection type | Screw connection | |
| Rated insulation voltage | 690 V | |
| Maximum rated operational voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Rated frequency | 50/60 Hz | |
| Rated operational current, AC-15 at 230 V AC | 6 A | |
| Rated operational current, DC-13 at 24 V DC | 5 A | |
| Mechanical durability | 10 million operations | |
| Pollution degree | 3 | |
| Operating temperature | -25 to +70 °C | |
| Storage temperature | -40 to +85 °C | |
| Product net width | 20 mm | |
| Product net height | 44 mm | |
| Product net depth | 28 mm | |
| Product net weight | 0.026 kg |
Frequently Asked Questions
What contact configuration does the ABB MCB-02B have?
The ABB MCB-02B is a double contact block containing two normally closed (2 NC) contacts.
Is the ABB MCB-02B front or rear mounted?
The MCB-02B is designed for rear mounting with compatible ABB Modular pilot devices.
What type of electrical connection does the MCB-02B use?
The ABB MCB-02B uses screw connections for secure connection of the control wiring.
What are the electrical ratings of the ABB MCB-02B?
The MCB-02B has a rated insulation voltage of 690 V, a rated impulse withstand voltage of 6 kV and an AC-15 rated operational current of 6 A at 230 V AC.
What is the ABB order code for the MCB-02B?
The ABB order code for the MCB-02B contact block is 1SFA611610R2020.
Trusted Industrial Control Components from ABB
ABB Modular contact blocks provide dependable switching interfaces for industrial machinery and automation systems, combining compact modular construction, robust electrical ratings and durable switching performance for demanding control applications.
