Description
The Banner Engineering OTBVR81L is a momentary-action optical touch button from the OTB Series designed for non-contact operator input in industrial control systems. Featuring a black field cover and SPDT electromechanical relay output, it operates on 20–30 V AC/DC power for flexible integration. Its rugged base-mount housing and IP66 protection make it suitable for demanding factory and process environments.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Banner Engineering |
| Category |
Operator Interface |
| Part Number |
OTBVR81L |
| Subcategory |
Optical Touch Buttons |
| Series |
OTB Series |
| Alternate Mfr Part Number |
34040 |
| Operation |
Momentary |
| Activation Function |
Optical |
| Sensing Mode |
Single Point Optical |
| Output Type |
SPDT Electromechanical Relay |
| Contact Form |
SPDT (NO/NC) |
| Supply Voltage |
20–30 V AC/DC |
| Power Type |
AC or DC |
| Mounting Thread |
M30 x 1.5 |
| Mounting Hole Size |
30 mm |
| Connection |
2 m Cable |
| Number of Pins/Conductors |
5 |
| Housing Style |
Base Mount – Saddle |
| Primary Housing Material |
Polycarbonate (Lexan) |
| Secondary Material |
Thermoplastic |
| Primary Housing Color |
Red |
| Field Cover Color |
Black |
| Illumination |
Non-Illuminated |
| IP Rating |
IP66 |
| NEMA Rating |
NEMA 1, 3, 4, 4X, 12, 13 |
| Operating Temperature |
-20°C to +50°C |
| Max Relative Humidity |
90% @ 50°C (Non-Condensing) |
| Response Time (Input/Output) |
100 ms |
| Physical Dimensions (L x W x H) |
59.9 x 43.2 x 48.0 mm |
| Weight |
0.30 kg |
Information About OTBVR81L
The OTBVR81L is a base-mount optical touch button engineered within Banner Engineering’s OTB Series for reliable, single-point optical activation. Constructed with a durable polycarbonate (Lexan) housing and thermoplastic components, it is designed to withstand industrial exposure while maintaining consistent actuation performance. The unit supports 20–30 V AC/DC input power and provides an SPDT electromechanical relay output configurable for normally open or normally closed operation. With an M30 x 1.5 mounting thread and 2-meter cable connection, it integrates easily into operator panels, machinery interfaces, and automated production equipment.
Key Features:
- Momentary Optical Activation: Provides non-contact, single-point optical sensing for hygienic and low-wear operation.
- SPDT Relay Output: Electromechanical relay supports normally open or normally closed configurations.
- 20–30 V AC/DC Supply: Compatible with both AC and DC control systems for versatile installation.
- Rugged IP66 Protection: Sealed housing resists dust and water ingress in industrial settings.
- M30 x 1.5 Threaded Mounting: Standard 30 mm mounting size for easy panel integration.
- Non-Illuminated Black Field Cover: Designed for applications requiring a non-visual activation surface.
- Wide Operating Temperature Range: Operates reliably from -20°C to +50°C.
- Prewired 2 m Cable: Simplifies wiring and reduces installation time.
The OTBVR81L delivers the reliability and precision required for non-contact operator control in industrial automation and machine interface applications.
