This blog presents a unified and condensed technical summary of selected sections from the Eaton Wiring Manual (edition 10/2023).
For reference, the complete original document can be found at the following link:
https://drive.google.com/file/d/1Kf8cDOoS5qv-I1dPISd-MFLddNOHtcX5/view?usp=drivesdk
1. RMQ-TITAN® – M22 / M30 Systems
- Modular command and signaling devices.
- Mounting hole: Ø 22.5 mm (M22) and Ø 30.5 mm (M30).
- Bezels: Titanium (M30C) or stainless steel (M30I).
- Protection: IP66 / IP69K.
- Standard contacts: N/O (M22-K10), N/C (M22-K01).
- Double contacts: M22-CK20, M22-CK02, M22-CK11.
- Self-monitoring contacts: M22-K01SMC10, M22-K02SMC10.
- Tightening torque: 0.8 Nm.
2. RMQ-TITAN® – C22 / C30 Compact Systems
- Compact devices with integrated contact block and cable.
- Mounting hole: Ø 22.5 mm (C22), Ø 30.5 mm (C30).
- Connection: M12 connector or free wires.
- Protection: IP65 / IP67.
- Main advantage: Rapid installation with reduced assembly time.
3. Signal Towers SL7 / SL4
- Modular stackable design (up to 5 modules).
- Standard colors: Red, Yellow, Green, Blue, White.
- Light modes: Steady, flashing, strobe.
- Acoustic modules: 70–100 dB.
- Protection: IP66.
- Mounting: Bayonet base or pole.
- Voltage: 24 V AC/DC, 120 V AC, 230 V AC.
- Remote light test compatible with M22-XLED modules.
4. Emergency Stop – E-Stop with SMC10
- Complies with ISO 13850 and EN 418.
- Positive mechanical opening.
- SMC10: Self-monitoring, Category 4 PL e.
- Configurations: M22-K01SMC10, M22-K02SMC10.
- Protection: IP66.
- Red mushroom head, optional twist release.
5. Light Test – M22-XLED-T / M22-XLED230-T
- Function: Remote LED function test.
- M22-XLED-T: 24 V AC/DC.
- M22-XLED230-T: 230 V AC.
- Compatible with RMQ-Titan, SL7, SL4.
- Circuit isolation prevents feedback during test.
6. M12 Connectors (A-Coding)
- Formats: 4 or 5 pins.
- Pin 1: +V (Brown), Pin 3: 0 V (Blue).
- Pin 4: LED signal (Black).
- Pin 2 / Pin 5: Auxiliary (White / Grey).
- Protection: IP65 / IP67.
7. Terminal Blocks
- Screw: High clamping force, periodic retightening.
- Spring clamp: Tool-free, vibration resistant.
- Push-In: Direct insertion without tools.
- Range: 0.2–4 mm².
- Standard: IEC 60947-7-1.
8. UL 508A
- Scope: Industrial control panels.
- UL-listed/recognized components required.
- Creepage/clearance per voltage and pollution degree.
- Clear labeling of voltage, current, function.
- Separation of different voltages.
- Testing: Heating, short-circuit, wiring verification.
9. Machine Safety
- Standard: EN 60204-1.
- Positive-opening emergency stops.
- Redundant safety circuits with self-diagnosis.
- Interlocks to prevent hazardous access.
- Adequate IP rating.
- Periodic functional tests.
10. ATEX / Ex
- Directive: 2014/34/EU for explosive atmospheres.
- Use only certified devices for the zone.
- Correct sealing and assembly required.
- Marking: Ex symbol, group, category, max surface temp.