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1SFA611605R1102 ABB MCBH-20 Block Holder with 2 NO Contact Blocks
ABB MCBH-20 is a front-mounted modular block holder with two normally open contact blocks, a 3-position holder, screw-clamp terminals and industrial AC-15 and DC-13 switching ratings for compatible ABB 22 mm pilot devices.
£8.78
Why Choose the ABB MCBH-20 Block Holder with Contact Blocks?
The ABB MCBH-20 is a modular contact block and holder assembly designed for ABB industrial pilot devices and operator controls. Supplied as a complete assembled unit, it combines a 3-position holder with two normally open (2 NO) contact blocks, providing a convenient solution for completing compatible pushbutton, selector switch, toggle switch and machine-control assemblies.
Part of the ABB Modular pilot device range, the MCBH-20 is designed for non-illuminated operators and uses front mounting for straightforward assembly behind compatible operator heads. Its two normally open contacts provide two independent switching paths that close when actuated by the associated pilot-device operator.
The MCBH-20 is rated for industrial control duty, including 6 A at 230 V AC AC-15 and 5 A at 24 V DC DC-13. Screw-clamp terminals support secure field wiring, while a mechanical durability of 10 million operations makes the assembly suitable for frequently operated industrial machinery and automation equipment.
Key Advantages
- Complete block holder with two normally open contact blocks.
- 2 NO contact configuration provides two normally open switching circuits.
- Includes a 3-position holder for ABB modular pilot-device assemblies.
- Front mounting supports straightforward installation behind compatible operators.
- Screw-clamp terminals provide secure industrial control wiring.
- Mechanical durability of 10 million operations for dependable long-term service.
- Compatible with a broad selection of ABB modular pushbutton, selector, toggle and mushroom-head operators.
Key Features
- ABB MCBH modular contact block assembly.
- Two normally open (2 NO) auxiliary contacts.
- 3-position holder included.
- Front-mounted configuration.
- Designed for ABB 22 mm modular pilot devices.
- Suitable for non-illuminated operators.
- 690 V rated insulation voltage.
- 6 kV rated impulse withstand voltage.
- 6 A at 230 V AC rated operational current for AC-15 duty.
- 5 A at 24 V DC rated operational current for DC-13 duty.
- IP20 terminal protection.
- 10 million operations mechanical durability.
Reliable Contact Switching for Industrial Pilot Devices
Contact blocks translate the mechanical movement of a pushbutton, selector switch or other operator into electrical switching within a control circuit. The ABB MCBH-20 provides two normally open contacts, allowing an associated operator to simultaneously control two separate normally open circuits when actuated.
The integrated 3-position holder provides the mechanical interface between compatible ABB modular operators and the contact blocks. Combined with front mounting, screw-clamp terminals and industrial AC-15 and DC-13 ratings, the MCBH-20 provides a practical solution for constructing and maintaining operator controls in machinery and automation panels.
Typical Applications
- Industrial pushbutton assemblies.
- Selector and toggle switch assemblies.
- Machine-control panels.
- Industrial operator stations.
- Conveyor and material handling controls.
- Production and packaging machinery.
- OEM automation and machine-building systems.
Technical Specifications
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| Contacts | 2NO | |
|---|---|---|
| Device Type | Contact Block | |
| Product Series | ABB Modular | |
| Illumination | Non-illuminated | |
| Series | Modular Pilot Devices | |
| ABB order code | 1SFA611605R1102 | |
| ABB product group | 312001-Pilot Devices (Secrl) | |
| Product type | Block holder with contact blocks | |
| Product main type | MCBH | |
| Contact configuration | 2 NO | |
| Number of normally open contacts | 2 | |
| Holder configuration | 3-position holder | |
| Mounting type | Front mounting | |
| Pilot-device system | 22 mm modular range | |
| Illumination | Non-illuminated | |
| Connection type | Screw clamp | |
| Terminal type | Screw terminals | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Rated frequency | 50 / 60 Hz | |
| Rated operational current AC-15 | 6 A at 230 V AC | |
| Rated operational current DC-13 | 5 A at 24 V DC | |
| Terminal protection | IP20 | |
| Mechanical durability | 10 million operations | |
| Ambient operating temperature | -25 to +70 °C | |
| Dimensions (H × W × D) | 48 × 30 × 36 mm | |
| Weight | 0.032 kg | |
| GTIN / EAN | 7320500307489 |
Frequently Asked Questions
What is the ABB MCBH-20 used for?
The ABB MCBH-20 is a block holder with contact blocks used with compatible ABB modular pilot-device operators to provide electrical switching in industrial control circuits.
What contact configuration does the ABB MCBH-20 have?
The MCBH-20 has two normally open (2 NO) contacts and no normally closed contacts.
Does the MCBH-20 include a holder?
Yes. The MCBH-20 is supplied with a 3-position holder together with its two normally open contact blocks.
What are the electrical ratings of the ABB MCBH-20?
The MCBH-20 has a rated insulation voltage of 690 V and is rated at 6 A at 230 V AC for AC-15 duty and 5 A at 24 V DC for DC-13 duty.
How is the ABB MCBH-20 connected?
The MCBH-20 uses screw-clamp terminals for secure connection of industrial control wiring.
What pilot-device system is the MCBH-20 designed for?
The MCBH-20 is designed for ABB's 22 mm modular pilot-device range and is suitable for compatible non-illuminated pushbutton, selector, toggle and mushroom-head operators.
Trusted by Industrial Control Professionals Worldwide
ABB modular pilot devices, holders and contact blocks are widely used by machine builders, panel builders and automation professionals to provide dependable operator switching and control functions in industrial machinery, production equipment and automation systems.
