Schmersal ZQ 900-22 | Metal Rope Pull E-Stop, 2NO+2NC, IP67
Schmersal ZQ 900-22 industrial pull-wire emergency stop switch. Zinc die-cast housing, 2 safety NC + 2 auxiliary NO contacts, 75m max wire length, IP67, EN ISO 13849-1.
Product Overview
The Schmersal ZQ 900-22 is a metal-cased pull-wire emergency stop switch designed for long conveyor lines and machinery perimeter protection. It features a robust zinc die-cast housing, 2 positively driven safety NC contacts, and 2 auxiliary NO contacts. With a maximum wire length of 75 meters and IP67 protection, it is built for harsh industrial environments requiring reliable emergency stop functionality.
Technical Specifications (Electrical & Functional)
| Parameter | Specification |
| Model / Series | ZQ 900-22 (ZQ 900 Series) |
| Contact Configuration | 2 NC (Safety) + 2 NO (Auxiliary) |
| Switching Mechanism | Snap-Action, Positively Driven (EN 60947-5-1) |
| Rated Operational Current | 4 A at 230 V AC (AC-15), 1 A at 24 V DC (DC-13) |
| Rated Insulation Voltage (Ui) | 500 V |
| Safety Classification | EN ISO 13849-1 (B10d= 100,000 ops) |
| Wire Length (Max) | 75 m (Requires supports every 3–5 m) |
Technical Specifications (Mechanical & Environmental)
| Parameter | Specification |
| Housing Material | Zinc Die-Cast (Metal) |
| Connection Type | Screw Terminals (3 × M20 x 1.5 Cable Entries) |
| Wire Cross-Section | 0.75 – 2.5 mm² |
| Protection Rating | IP67 |
| Operating Temperature | -25 °C to +70 °C |
| Mechanical Life | > 1,000,000 Operations |
| Weight | ~1.26 kg |
Key Features
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Robust Metal Construction: The zinc die-cast housing provides high mechanical strength and impact resistance, making it suitable for heavy industry, mining, and outdoor applications.
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Long-Range Protection: Supports up to 75 meters of pull-wire length (with intermediate supports), allowing for extensive coverage along conveyor belts or production lines.
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Integrated Reset & Indication: Features a release push-button for easy reset after activation and a position indicator for visual status monitoring of the wire tension.
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High Safety Integrity: The 2 safety NC contacts are designed with positive break action, ensuring reliable opening of the safety circuit even under contact welding conditions, compliant with EN ISO 13849-1.
Applications
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Conveyor Systems: Emergency stop activation along long conveyor belts in logistics, parcel sorting, and material handling.
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Machine Guarding: Perimeter safety for large presses, automated assembly lines, and robotic cells.
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Harsh Environments: Washdown areas, foundries, and outdoor installations where dust, moisture, and mechanical stress are present.
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.
