Why Choose the EMAS B101S21 EMAS B SELECTOR SWITCH NON ILLUMINATED 2NO SPRING RETURN (0-1)?
£10.58
The EMAS B101S21 is a high-quality 22mm industrial selector switch designed for reliable momentary control applications in automation systems, electrical panels, and machinery interfaces. Featuring a 0-I selector operation, 60° switching angle, spring return mechanism, and two normally open (2NO) contacts, this EMAS B Series control unit provides dependable switching performance for professional industrial environments.
Manufactured by EMAS, the B101S21 selector switch is suitable for machine control panels, motor control systems, industrial automation equipment, and operator stations where momentary selector control is required. Its compact 22mm mounting design, durable construction, and long mechanical operating life make it ideal for demanding industrial applications.
The EMAS B101S21 selector switch is commonly used in industrial automation panels, machinery control stations, production equipment, motor control systems, electrical cabinets, and operator interfaces requiring momentary selector operation.
The EMAS B101S21 combines reliable switching technology with a rugged industrial design. Its 0-I spring return selector action, 2NO contact arrangement, and standard 22mm mounting compatibility provide a dependable solution for professional control applications.
| Specification Value Product Code | B101S21 |
|---|---|
| Product Type | Selector Control Unit |
| Contact Type | 2NO |
| Operating Position | 0-I |
| Operating Angle | 60° |
| Operating Mechanism | Spring Return |
| Mounting Diameter | 22mm |
| Rated Current (Ie) | 4A at 250V AC |
| Insulation Voltage (Ui) | 300V |
| Impulse Withstand Voltage (Uimp) | 2.5kV |
| Dielectric Strength | 2500V AC |
| Short Circuit Breaking Capacity | 1kA |
| Cable Section | 1.5-2.5mm² |
| Screw Torque | 1.5Nm |
| Standards | IEC 60947-5-1, TS EN 60947-5-1, UL 508, VDE 0660 |
The EMAS B101S21 is a 22mm selector switch control unit featuring 0-I operation, 60° switching angle, spring return action, and two normally open contacts.
The EMAS B101S21 features two normally open contacts (2NO).
The EMAS B101S21 is designed for standard 22mm panel mounting.
It is suitable for industrial automation systems, machinery controls, electrical panels, and operator control stations.
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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...