No products
Product successfully added to your shopping cart
Viewed products
-
OIFP3052 ELDON Front...
Front plate, 269x485 OIFP3052
-
406434 IME *DX3 IS 2P...
*DX3 IS 2P 32A SWITCH
-
-
2510-S PCE EXTENSION...
EXTENSION SCHUKO "TAURUS" PCE GOMA...
-
OIDES495405 ELDON...
Extended HMI, 495x542x55 OIDES495405
-
cMT3108XP WEINTEC...
Cloud HMI touch screen, capacitive,...
Two-hand control relay
Two-hand control relays are safety-critical devices designed to enforce operator presence by requiring simultaneous activation of two separate actuators, typically pushbuttons. These relays monitor the timing and sequence of both inputs, ensuring they are activated within a predefined window (usually <0.5 seconds) to prevent bypassing or tampering. They feature redundant internal circuits, often with forcibly guided contacts (e.g., 2 NO + 1 NC or 3 NO + 1 NC), and comply with standards like EN 574, ISO 13851, and IEC 60947-5-1. Rated for control voltages from 24 VDC to 230 VAC, they offer high reliability in harsh industrial environments with IP20 enclosures and DIN rail mounting.
These relays are primarily deployed in machin...
Two-hand control relays are safety-critical devices designed to enforce operator presence by requiring simultaneous activation of two separate actuators, typically pushbuttons. These relays monitor the timing and sequence of both inputs, ensuring they are activated within a predefined window (usually <0.5 seconds) to prevent bypassing or tampering. They feature redundant internal circuits, often with forcibly guided contacts (e.g., 2 NO + 1 NC or 3 NO + 1 NC), and comply with standards like EN 574, ISO 13851, and IEC 60947-5-1. Rated for control voltages from 24 VDC to 230 VAC, they offer high reliability in harsh industrial environments with IP20 enclosures and DIN rail mounting.
These relays are primarily deployed in machinery safety systems where operator hands must remain clear of hazardous zones during operation. Common applications include hydraulic presses, pneumatic stamping machines, injection molding equipment, metal shears, and assembly line stations. They are integral to safety circuits in manufacturing plants, automotive production lines, packaging machinery, and woodworking equipment. Their use extends to any sector requiring Category 3 or Category 4 safety levels per ISO 13849-1, ensuring fail-safe operation in automated processes.
Key subcategories include basic two-hand control relays (e.g., models with 2 NO + 1 NC contacts), advanced versions with integrated logic for anti-tie-down monitoring, and compact units for space-constrained panels. Popular article codes often follow a pattern like "THR-24VDC-2NO1NC" or "2HCR-230V-3NO1NC", where the prefix indicates the relay type, followed by voltage rating and contact configuration. Specific examples include the "THR-24V" series for low-voltage DC systems and "2HCR-230V" for AC mains applications. These codes are standardized across manufacturers for easy identification.
We offer express worldwide shipping with real-time pricing and stock visibility on our multilingual portal. Our team of specialized engineers provides personalized technical support for selecting the correct relay based on safety category, voltage, and contact configuration. Each product includes detailed documentation, wiring diagrams, and compliance certificates. Whether you need a standard unit or a custom solution, we ensure fast delivery and expert guidance to optimize your safety system.
All ratings we receive from the items we offer are real and verified. A small gesture, but a lot of value. That's why we thank you for that minute you invest in leaving us your opinion and qualification about the products, because it helps us to continue improving and to offer you a service of even higher quality.