Schmersal BNS 33-11Z | Safety Door Switch, 1NO+1NC, IP67
Schmersal BNS 33-11Z magnetic safety switch. Plastic housing, 1NO+1NC contacts, 100V AC/DC, IP67, -25°C to +70°C. Requires separate BPS actuator.
Product Overview
The Schmersal BNS 33-11Z is a non-contact magnetic safety switch designed for machine guarding and safety door monitoring. It features a thermoplastic housing and offers 1 normally open (NO) and 1 normally closed (NC) contact configuration. This switch operates on a magnetic reed principle and requires a separate coded actuator (BPS 33 series) for operation, ensuring compliance with safety standards up to Category 4 (EN ISO 13849-1).
Technical Specifications (Electrical & Functional)
| Parameter | Specification |
| Product Type | Magnetic Safety Switch (Reed) |
| Contact Configuration | 1 NO + 1 NC |
| Rated Voltage | ≤ 100 V AC / ≤ 100 V DC |
| Rated Current | 0.4 A |
| Max. Switching Power | 10 W |
| Switching Frequency | ≤ 5 Hz |
| Safety Category | Category 4 (EN ISO 13849-1) |
| B10D Value | 25,000,000 operations |
| Standards | EN IEC 60947-5-3, BG-GS-ET-14 |
Technical Specifications (Mechanical & Environmental)
| Parameter | Specification |
| Housing Material | Glass-fiber Reinforced Thermoplastic |
| Actuator Type | Coded Magnet (Separate, BPS 33) |
| Switching Distance (Sao) | 5 mm (BPS 33) / 8 mm (BPS 33-2326) |
| Release Distance (Sar) | 15 mm (BPS 33) / 18 mm (BPS 33-2326) |
| Degree of Protection | IP67 |
| Operating Temperature | -25 °C ... +70 °C |
| Dimensions (L x W x H) | 88 mm x 25 mm x 13 mm |
| Connection | Cable or M8 Connector (Variant Dependent) |
| Mounting | Concealed/Flush Mount |
Key Features
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High Safety Integrity: Designed for Category 4 applications with a high B10D value, suitable for protecting hazardous machine access points.
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Coded Actuation: Requires a specific Schmersal BPS actuator, preventing tampering or bypass with a standard magnet.
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Robust Construction: IP67-rated housing protects against dust and temporary immersion, ideal for harsh industrial environments.
Applications
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Safety door monitoring on CNC machines and robotic cells
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Access panel interlocking in packaging and assembly machinery
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Guard locking systems in compliance with EN ISO 14119
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.