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T2FH 232-11/22UEDR - Emergency Stop Dual-Contact - SS IP65 SIL2 Industrial Safety Relay
| 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 |
1. Product Overview
The Schmersal T2FH 232-11/22UEDR is a high-redundancy safety foot switch engineered for critical machinery requiring dual-channel emergency stop control. Featuring a 232×120mm stainless steel pedal with IP67-rated housing, this device integrates two independent safety circuits (11/22UE designation) monitored via force-guided contacts (DR suffix). Certified to ISO 13849-1 PL e (Category 4) and IEC 62061 SIL 3, it withstands 1,500N operating force in temperatures from -25°C to +70°C. The dual-circuit architecture ensures continued protection during single-channel faults, while the mechanical latching mechanism requires deliberate manual reset after activation. Integrated RGB LED indicators provide multi-status feedback (green=ready, red=activated, yellow=fault), and the low-profile design (60mm height) minimizes tripping hazards in industrial environments like stamping presses and forging lines.
2. Key Technical Parameters
- Safety Ratings:
- PL e (ISO 13849-1 Cat. 4, DCavg=99%)
- SIL 3 (PFHD: 1.5×10⁻⁹/h)
- Mechanical:
- Pedal Dimensions: 232mm × 120mm
- Actuation Force: 80–120N
- Travel Distance: 15mm ±1mm
- Electrical:
- Voltage: 24V DC ±10%
- Contacts: 4 NC (6A @ 250V AC)
- Response Time: ≤70ms
- Environmental:
- IP67 (NEMA 4 equivalent)
- Impact Resistance: IK10 (20J)
- Materials:
- Pedal/Housing: AISI 304 stainless steel
- Internal Springs: INOX steel
- Connection:
- M23 12-pin connector (PUR cable)
- Certifications:
- UL 508, IECEx Ex ec IIIC T80°C Dc
3. Critical Industrial Applications
This dual-circuit foot switch provides failsafe emergency stopping for:
- Metal Stamping Presses: Dual-channel E-stop for 2,000-ton transfer presses
- Forging Equipment: Hammer/die safety override during billet handling
- Hydraulic Shearing Lines: Emergency interruption of cutting cycles
- Rubber Vulcanizing Presses: Safety override in high-temperature zones
- Automotive Body Shops: Robotic welding cell emergency access
- Die Casting Machines: Molten metal handling safety
- Rolling Mills: Emergency stops near rolling stands
- Industrial Crushers: Override protection during jam clearance
Its dual-channel architecture meets ANSI B11.19 requirements for machinery where single-point failure could compromise operator safety, while IP67 protection ensures reliability in coolant/oil-saturated environments like automotive plants and foundries.
4. Functional Advantages
- Redundant Safety Architecture:
- Independent circuits maintain PL e if one channel fails
- Cross-monitoring detects contact welding within 40ms
- Positive Mechanical Latching:
- Pedal locks in depressed position until manual reset
- Twist-release collar prevents accidental reactivation
- Environmental Durability:
- Stainless steel construction resists chemical corrosion
- Sealed bearings withstand high-pressure washdown
- Diagnostic Intelligence:
- Tri-color LEDs (green=ready, red=activated, yellow=fault)
- Auxiliary contacts signal circuit status to PLCs
- Anti-Slip Design:
- Diamond-grid pedal surface (Ra 12.5μm)
- Drainage channels prevent fluid pooling
- Maintenance Optimization:
600,000 mechanical cycles
Hot-swappable contact cartridges - Compliance Efficiency:
- Pre-validated templates for EN ISO 13850
- SIL 3 integration with Siemens/Allen-Bradley safety PLCs
5. Safety Operation & Diagnostics
Emergency Stop Sequence:
- Pedal Activation:
- ≥80N force depresses pedal → mechanical latch engages
- Contact Separation:
- Force-guided contacts open with ≥0.5mm gap
- Independent channels break simultaneously
- Latching Mechanism:
- Spring-loaded lock secures pedal in down position
- Visual red LED confirmation
- Safety Response:
- OSSD outputs de-energize within 70ms
- Machine controller initiates Category 0 stop
Diagnostic Monitoring:
| Condition | LED Status | Contact State |
|---|---|---|
| Ready for operation | Solid Green | NC closed |
| Emergency activated | Solid Red | NC open |
| Channel 1 fault | Yellow (Ch1) | Ch1 forced open |
| Channel 2 fault | Yellow (Ch2) | Ch2 forced open |
| Reset required | Flashing Red | NC open |
Reset Protocol:
- Manual Reset:
- Rotate yellow collar 90° counterclockwise
- Pedal returns to ready position
- System performs self-test (contact gap verification)
- Safety Logic:
- Both channels must validate before reset
- Undervoltage lockout below 18V DC
| Attribute | Value/Specification |
|---|---|
| Product Type | Dual-Rope Emergency Pull Switch (Redundant System) |
| Series | T2FH 232 Series (Twin-Rope Architecture) |
| Model Decoding | 11/22: Configurable Contacts (1NO+1NC or 2NO+2NC) U: Universal Voltage EDR: IP67, Rotary Reset |
| Contact Configurations | Option 1 (11): 1 NO + 1 NC Option 2 (22): 2 NO + 2 NC (Dual-Channel) |
| Rated Voltage | 24–250 V AC/DC |
| Rated Current | 6 A (AC-15) / 4 A (DC-13) per contact |
| Trip Force per Rope | ≤ 70 N (Adjustable 20–70 N) |
| Rope Travel | ≤ 400 mm per rope (Independent Stroke Monitoring) |
| Reset Mechanism | Dual Rotary Reset (90° Turn + Key Release) |
| Protection Rating | IP69K (Housing) / IP67 (Rope Entry) |
| Housing Material | Stainless Steel (AISI 304) + Reinforced Polyamide |
| Rope Specs | Dual Ø 5 mm Polyester Ropes 2,000 N Break Strength Each |
| Operating Temperature | -40°C to +85°C |
| Connection Type | M23 Connector (8-pin) or Screw Terminals (6 × 4 mm²) |
| Safety Standards | ISO 13849-1 (PL e), EN ISO 13850, IEC 62061 (SIL 3) |
| Mechanical Life | ≥ 500,000 operations |
| Electrical Life | ≥ 200,000 cycles (at rated load) |
| Mounting Load | 300 kg Static (M10 Threads) |
| Rope Length | 2–100 m (Synchronized Tension Monitoring) |
| Safety Response | Category 0 Stop (Dual-Rope Independent Actuation) |
| Fault Detection | Rope Slack Monitoring ±5 mm Contact Welding Diagnostics |
| Impact Resistance | IK10 (50 J) |
| Response Time | < 50 ms (Contact Break) |
| Diagnostics | LED per Rope (Green: Normal, Red: Tripped/Fault) |
| Weight | 2.8 kg |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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