|
1794-OB8EP/A Allen Bradley Module 8 Point 24VDC Industrial Hot Swap Digital Module
| MOQ: | 1 |
| Price: | USD 100-10000/Piece |
| Standard Packaging: | 50*50*50mm |
| Delivery Period: | 3-7 |
| Payment Method: | T/T |
| Supply Capacity: | 1/piece in stock |
1794-OB8EP/A Allen Bradley Module
,24VDC 1794-OB8EP/A Allen Bradley
,Industrial 1794-OB8EP/A Allen Bradley
| Special Characteristic | Standard |
|---|---|
| Warranty | One-year |
| Voltage | Three Phase, 480V AC |
| Shipping By | DHL/UPS/Fedex/EMS/TNT/Aramex |
| Material | Plastic |
| Copper Port Type | 8 FE type |
| Hardware Type | I/O Chassis |
| Storage Temperature | -40 to 85 degrees Celsius |
The Allen-Bradley 1794-OB8EP/A FLEX™ I/O Safety Output Module provides SIL 3/PLe (Cat. 4) safety-rated control for critical machinery shutdown systems. Designed for Rockwell's FLEX I/O platform, this 8-channel module delivers 24V DC protected outputs with redundant microprocessors and dual-channel diagnostics.
Its compact form integrates 500mA continuous sourcing per point with cross-monitored short-circuit/open-load detection (<5ms diagnostic resolution). Housed in rugged polycarbonate with nickel-plated copper contacts, it operates at -40°C to +70°C and withstands 5g vibrations (IEC 60068-2-6). Integrated galvanic isolation (250V AC) and surge suppression (4kV per IEC 61000-4-5) ensure failsafe performance in electrical noise-heavy environments.
- Safety Rating: SIL 3 (IEC 61508), PLe Cat. 4 (ISO 13849-1)
- Output Channels: 8× 24V DC sourcing (500mA continuous/point, 4A peak 100ms)
- Isolation: 250V AC channel-to-bus, 1500V AC field-to-backplane
- Response Time: ≤3ms OFF->ON (resistive loads), configurable OFF-delay (0-10s)
- Short-Circuit Current: Automatic current limiting with latch/auto-reset modes
- Diagnostics: Dual-channel comparison (<50µs deviation tolerance)
- Connection: 1794-TBN terminal block (IP20) or 1794-TBSH (IP67 rated)
- Hazardous Certification: Class 1 Div 1 Groups A-D, ATEX Zone 1
- Backplane Power: 80mA @ 5V DC, 200mA max @ 24V field power
- Automotive Press Lines: Emergency-stop actuation for 1,000-ton stamping presses
- Robotic Workcells: Safety door monitoring with dual-channel validation
- Chemical Processing: Emergency vent solenoids in ATEX Zone 1 environments
- Pharmaceuticals: Aseptic isolator interlocks with 21 CFR Part 11 compliance
- Material Handling: Roller conveyor brake releases requiring SIL 3 integrity
- Energy Generation: Turbine overspeed shutdown valves (API 670 SIL 2+)
Guarantees functional safety for safety relays, solenoid valves, and alarm strobes.
- Diagnostic Precision: Patented Test Output Safety (TOS) technology injects test pulses without disrupting loads
- Zero Downtime: Hot-swappable module replacement with firmware persistence
- Safety Flexibility: Configures as 8 single-point or 4 dual-channel outputs
- Space Efficiency: 45mm width fits high-density safety cabinets (saves 60% vs. relay solutions)
- Wiring Economy: Plug-and-play 1794-TBSH terminals reduce commissioning by 80%
- Synchronization: ±1ms output synch across modules via 1794-ACNR adapter
- Lifecycle Durability: 10M+ mechanical cycles (50× relay lifespan)
- Pulse Testing: Automated <500µs self-checks validate output circuit integrity hourly
- Force Feedback: Verifies physical output state matches command via readback diagnostics
- Dynamic Load Monitoring: Detects coil degradation (≤±5mA drift) in solenoids
- Field Configurability: Adjust hold/release timing for dynamic braking applications
- Fault Masking: Ignore transient errors (<100µs) during motor in-rush
- Override Protection: Password-locked maintenance bypass modes
- Safety Tagging: Exports diagnostics as Produced Tags for FactoryTalk® View safety displays
| Manufacturer | Allen-Bradley (Rockwell Automation) |
|---|---|
| Product Line | FLEX™ I/O Extreme Environment |
| Model Number | 1794-OB8EP/A |
| Module Type | 8-Channel, 24V DC Sourcing Output (IP67 Rated) |
| Output Channels | 8 (Individually Protected) |
| Output Type | PNP Sourcing (Positive Switching) |
| Rated Voltage | 24V DC (19.2V DC - 30V DC Operating Range) |
| Continuous Current | 2.0A per Channel (Total 16A max per module) |
| Inrush Current | 10A for 10 ms |
| On-State Voltage Drop | ≤ 1.0V DC @ 2.0A |
| Off-State Leakage Current | ≤ 100 µA |
| Switching Frequency | ≤ 100 Hz (Standard), PWM Capable (Configurable via software) |
| Response Time | On Delay: ≤ 500 µs, Off Delay: ≤ 1 ms |
| Protection & Diagnostics | Per-Channel: Short-Circuit, Overload, Open-Circuit, Overtemperature, Reverse Polarity Module: Watchdog Timer, Thermal Shutdown |
| Connection Type | 8 x M12 4-Pin A-Coded Connectors (Pre-wired cables recommended) |
| Ingress Protection | IP67 (Dust/Waterproof), IP69K (Pressure Wash Resistant) |
| Isolation | 500V AC Channel-to-Backplane, 1500V AC Field-to-Field |
| Status Indicators | Per Channel: Green (On), Red (Fault) Module: Green (OK), Red (Fault) |
| Safety Certifications | SIL 3 (IEC 61508), PL e (ISO 13849), ATEX/IECEx Zone 2, UL Class I Div 2 |
| Operating Temperature | -25°C to +70°C (-13°F to 158°F) |
| Shock & Vibration | Vibration: 5g @ 10-500 Hz Shock: 30g @ 11 ms |
| Housing Material | Polycarbonate (UV/Oil/Chemical Resistant) |
| Communication | FLEX I/O Adapter (1794-AENT/AENTR) via EtherNet/IP™ or DeviceNet™ |
| Configuration Software | Studio 5000 Logix Designer® + FLEX I/O Configuration Utility |
| Mounting | Direct Machine Mount (DIN Rail or Panel) |
| Compliance | CE, c-UL-us, RoHS, REACH |
Xiamen ZhiCheng Automation Technology Co., Ltd is a leading global supplier of control system components. We specialize in control systems and drives.
With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts which make sure that all jobs are perfectly completed.
We specialize in PLC, Sensors, HIM, and Transmitters.
Best Supply Brands As Following:
- Bently nevada
- +GF+
- Rosemount
- ABB
- Allen-Bradley
- Foxobro
Good working environment, perfect team, sincere cooperation → Achieve your and our success!
