Why Choose the EMAS KB12 EMAS KB CONTACT BLOCK STOP 1 NC?
£4.43
The EMAS KB12 is a reliable 1NC normally closed contact block designed for use with EMAS KB Series push buttons and control units. It provides dependable switching performance for industrial automation panels, machine controls, and electrical control systems requiring a durable stop or safety contact solution.
Manufactured by EMAS, the KB12 contact block is designed for industrial environments with a rated current of 4A at 220V AC and AC-15 utilisation category. It complies with TS EN 60947-5-1 / IEC 60947-5-1 standards for control circuit devices.
The EMAS KB12 contact block is ideal for emergency stop circuits, stop push buttons, industrial control panels, machinery automation systems and electrical control applications requiring a normally closed switching contact.
| Specification Value Brand | EMAS |
|---|---|
| Product Code | KB12 |
| Product Type | Contact Block |
| Series | KB Series |
| Contact Type | 1NC Normally Closed |
| Rated Current (Ie) | 4A |
| Rated Voltage | 220V AC |
| Usage Category | AC-15 |
| Mechanical Life | 500,000 operations minimum |
| Electrical Life | 100,000 operations minimum |
| Operating Frequency | 3000 mechanical / 1200 electrical operations per hour |
| Insulation Voltage (Ui) | 300V |
| Impulse Withstand Voltage (Uimp) | 2.5kV |
| Dielectric Strength | 2500V AC |
| Isolation Resistance | 10MΩ minimum (500V DC) |
| Operating Temperature | -15°C to +80°C |
| Pollution Degree | 3 |
| Protection Degree | IP50 |
| Contact Material | AgNi |
| Cable Section | 1.5-2.5mm² |
| Screw Torque | 1.5Nm |
| Short Circuit Breaking Capacity (Ics) | 1kA |
| Standard | TS EN 60947-5-1 / IEC 60947-5-1 |
The EMAS KB12 provides a single normally closed (1NC) contact suitable for stop and safety control applications.
The EMAS KB12 is rated at 4A at 220V AC with AC-15 utilisation category.
The KB12 is designed as a spare contact block accessory for EMAS KB Series control units and push button assemblies.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...