G9SX-EX401-RT - 4NO Safety Expansion Unit | Omron | 24VDC Screw Terminal
Teilenummer: G9SX-EX401-RT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $314.82 | $314,82 |
| 5 | $296.5 | $1.482,50 |
| 10 | $278.2 | $2.782,00 |
| 25 | $260.4 | $6.510,00 |
| 50 | $245.1 | $12.255,00 |
G9SX-EX401-RT Übersicht
A safety relay / flexible safety unit is a category of solid-state safety controller that combines logic (logical AND of multiple safety inputs), monitoring (cross-fault detection, output monitoring), and switching (force-guided redundant outputs) into a single IEC 61508 / ISO 13849-1 compliant module. Within the broader hierarchy, it sits below a full safety PLC (like the Omron NX-SL) and above a discrete electromechanical safety relay, trading some flexibility for a much lower wiring complexity. The G9SX family targets mid-complexity safety functions where certified relay logic is acceptable but more than one or two safety zones must be combined.
Key features of the G9SX-EX401-RT include: 4 normally-open instantaneous safety outputs (4NO), 1 auxiliary PNP semiconductor output for status feedback, 24 VDC nominal supply, screw terminal wiring (RT suffix), and compatibility with both instantaneous and OFF-delayed expansion units (G9SX-EX401 and G9SX-EX041-T) within the same logical AND chain. Solid-state outputs eliminate mechanical wear, supporting the high-cycle applications the G9SX family targets.
The architecture relies on an internal cross-fault monitoring loop that forces redundant solid-state outputs to switch in unison, with internal self-test pulses on the outside to detect stuck-on or stuck-off failures - this is what allows the unit to be certified for use up to PLe / SIL3 in conjunction with the upstream Advanced or Basic unit. The logical AND input allows multiple expansion units to be chained while still meeting category-4 / PLe performance when properly wired.
Typical applications include: (1) extending safety I/O for robotic work cells where multiple e-stops and light curtains must be logically combined, (2) emergency-stop expansion on large packaging machinery, and (3) safety door monitoring on multi-station assembly lines. The non-wearing solid-state outputs make the G9SX-EX401-RT particularly suited to high-cycle-count installations where electromechanical relays would wear out quickly.
When designing with the G9SX-EX401-RT, note that the unit cannot operate standalone - it requires a G9SX-AD or G9SX-BC master unit to provide the safety logic and one safety output contact. Plan the DIN-rail layout to leave room for the upstream master and any additional expansion modules, and observe the wiring derating curves in the datasheet when outputs are stacked at full 3 A load.
This page synthesizes distributor pricing, drop-in same-brand alternatives within the G9SX family, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in-Alternativen für G9SX-EX401-RT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
G9SX-EX401-RC
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
G9SX-EX041-T-RT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
G9SX-EX041-T-RC
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
G9SX-BC222-RT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
G9SX-AD322-T15-RT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
G9SX-EX401-RT Grenzwerte & elektrische Eigenschaften
| Product Type | Flexible Safety Unit - Expansion Module |
| Series | G9SX-EX |
| Safety Outputs (Instantaneous) | 4 NO (solid-state) |
| Auxiliary Output | 1 x PNP semiconductor |
| Nominal Supply Voltage | 24 VDC |
| Terminal Type | Screw (RT suffix) |
| Mounting | DIN Rail (35 mm) |
| Output Contact Rating | 3 A (per datasheet family typical) |
| Betriebstemperatur | -10 C to +55 C (per G9SX family datasheet) |
| Operating Humidity | 35% to 85% RH (non-condensing) |
| Safety Category | Up to PLe / SIL3 (when used with G9SX-AD or G9SX-BC master) |
| Standards Compliance | IEC 61508, ISO 13849-1, EN 60204-1 (per family datasheet) |
| Compatible Master Units | G9SX-AD series, G9SX-BC series |
| Expansion Cascading | Supports G9SX-EX401 and G9SX-EX041-T mixing |
| RoHS-Status | Compliant (per Omron product page) |
G9SX-EX401-RT Pin-Konfiguration
| Pin A1 | +24V — 24 VDC supply positive |
| Pin A2 | 0V — 24 VDC supply negative |
| Pin T11 | AND IN — Logical AND input from master / upstream expansion |
| Pin T12 | AND IN — Logical AND input (second terminal) |
| Pin T21 | WIRED OUT — Wired connection to next expansion unit |
| Pin T22 | WIRED OUT — Wired connection (second terminal) |
| Pin 13 | Safety Out 1 — Instantaneous safety output 1 (NO contact) |
| Pin 14 | Safety Out 1 — Instantaneous safety output 1 (NO contact, paired) |
| Pin 23 | Safety Out 2 — Instantaneous safety output 2 (NO contact) |
| Pin 24 | Safety Out 2 — Instantaneous safety output 2 (NO contact, paired) |
| Pin 33 | Safety Out 3 — Instantaneous safety output 3 (NO contact) |
| Pin 34 | Safety Out 3 — Instantaneous safety output 3 (NO contact, paired) |
| Pin 43 | Safety Out 4 — Instantaneous safety output 4 (NO contact) |
| Pin 44 | Safety Out 4 — Instantaneous safety output 4 (NO contact, paired) |
| Pin AUX | AUX PNP — Auxiliary PNP semiconductor status output |
Typische Anwendungen
G9SX-EX401-RT ist geeignet für 6 Anwendungs: Robotic Work Cell Safety Expansion, Packaging Machinery E-Stop Expansion, Multi-Station Assembly Line Guard Doors, Semiconductor / FPD Equipment Safety Interlock, Press Machine and Stamping Safety, Automated Conveyor and Material Handling Safety.
Robotic Work Cell Safety Expansion
The G9SX-EX401-RT is a drop-in safety-output expansion for robotic cells where a G9SX-AD master combines multiple safety zones (e-stops, light curtains, area scanners) and needs more than 4 instantaneous outputs to drive contactors and valve banks. Its 4 solid-state NO safety outputs at 24 VDC and 1 PNP auxiliary output provide clean status feedback to the robot safety stop circuit. Unlike electromechanical safety relays, the solid-state outputs survive the millions of cycles typical of robotic applications and require no periodic mechanical inspection. Cascading two EX401-RT modules off one G9SX-AD322-T15 master yields 8 additional instantaneous safety outputs in a single logical AND chain, supporting PLe / SIL3 architectures.
Empfohlen
Packaging Machinery E-Stop Expansion
In high-cycle packaging lines, the G9SX-EX401-RT extends the safety output count of a G9SX-BC Basic Unit to cover multiple e-stop buttons, guard-door interlocks, and safety mats across the conveyor network. The 4 instantaneous NO safety outputs handle the main contactors, while the auxiliary PNP output drives an HMI fault indicator. The non-wearing solid-state output topology suits the >1 million cycle/year duty typical of FMCG packaging. The DIN-rail 35 mm form factor with screw terminals (RT) installs cleanly inside standard control cabinets alongside motor starters and VFDs.
Empfohlen
Multi-Station Assembly Line Guard Doors
For assembly lines with multiple guard doors requiring individual safety monitoring, the G9SX-EX401-RT is the expansion companion to a G9SX-AD master, allowing each door's interlock switch to map to its own safety output channel. The 24 VDC supply integrates with the standard factory control bus, and the screw terminal (RT) wiring simplifies field service when sensors must be replaced. According to the Omron G9SX family datasheet, the logical AND input on the EX401-RT lets the master unit enforce global stop conditions while preserving per-door monitoring granularity.
Empfohlen
Semiconductor / FPD Equipment Safety Interlock
Semiconductor and flat-panel-display equipment requires redundant safety outputs for vacuum chamber interlocks, robotic wafer handlers, and chemical bath stations. The G9SX-EX401-RT's solid-state outputs deliver the high MTBF needed for 24/7 production equipment, while its DIN-rail mounting suits the space-constrained sub-panel layouts typical of process tools. Each of the 4 instantaneous NO outputs can drive a separate interlock relay, and the PNP auxiliary output provides clean status for the tool's SECS/GEM host connection. The G9SX-AD322-T15-RT master plus one or two EX401-RT expansions covers typical tool safety I/O counts.
Empfohlen
Press Machine and Stamping Safety
Mechanical and hydraulic press machines benefit from the G9SX-EX401-RT as an expansion to a G9SX-AD Advanced Unit, providing additional safety outputs to drive dual-channel press-stop contactors, clutch/brake valves, and guard-door monitoring relays. The PLe / SIL3 capability when cascaded with the G9SX-AD master satisfies ISO 13849-1 requirements for press safety circuits in the EU Machinery Directive. The OFF-delayed variant G9SX-EX041-T-RT can be cascaded alongside the EX401-RT to provide a controlled top-stop function with a programmable delay, supporting both immediate-stop and run-down modes in a single chassis.
Empfohlen
Automated Conveyor and Material Handling Safety
Long conveyor systems in distribution centers and automotive plants require multiple safety outputs for e-stops along the line, pull-cord switches, and area guards at transfer stations. The G9SX-EX401-RT expansion module, mounted on DIN rail inside conveyor-side control boxes, extends a central G9SX-AD master to cover these distributed safety zones. The non-wearing solid-state outputs handle the millions of e-stop cycles expected over the conveyor's service life, while the screw terminal wiring (RT) accommodates the larger gauge wire typical of motor-rated contactor outputs. The PNP auxiliary output can drive a stack-light or HMI tag for fault indication per zone.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für G9SX-EX401-RT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | G9SX-EX401-RC | G9SX-EX041-T-RT | G9SX-EX041-T-RC | G9SX-BC222-RT | G9SX-AD322-T15-RT |
|---|---|---|---|---|---|---|
| Brand | Omron | Omron | Omron | Omron | Omron | Omron |
| Package / Mounting | DIN-rail module (35 mm), screw terminals | DIN-rail module (35 mm), push-in terminals - same | DIN-rail module (35 mm), screw terminals - same | DIN-rail module (35 mm), push-in terminals - same | DIN-rail module (35 mm), screw terminals - same | DIN-rail module (35 mm), screw terminals - same |
| Function Type | Expansion Unit (4NO instantaneous) | Expansion Unit (4NO instantaneous) | Expansion Unit (4NO OFF-delayed) | Expansion Unit (4NO OFF-delayed) | Basic Unit master (standalone, 2NO+1NC + 2 aux) | Advanced Unit master (standalone, 3NO+2NC, logical AND) |
| Nominal Supply Voltage | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC | 24 VDC |
| Instantaneous Safety Outputs | 4 NO | 4 NO | 0 NO (4 OFF-delayed only) | 0 NO (4 OFF-delayed only) | 2 NO + 1 NC (master) | 3 NO + 2 NC (master) |
| Auxiliary Output | 1 x PNP semiconductor | 1 x PNP semiconductor | 1 x PNP semiconductor | 1 x PNP semiconductor | 2 x PNP semiconductor | 2 x PNP semiconductor |
| Logical AND Input | Yes (from master via T11/T12) | Yes | Yes | Yes | Yes (master side) | Yes (2x AND inputs on Advanced Unit) |
| OFF-Delay Function | No | No | Yes (configurable) | Yes (configurable) | No | Yes (T15 suffix denotes OFF-delay) |
| Standalone Operation | No (expansion only) | No (expansion only) | No (expansion only) | No (expansion only) | Yes (Basic Unit master) | Yes (Advanced Unit master) |
Wichtigste Unterscheidungsmerkmale
- Only G9SX expansion with screw terminals AND instantaneous-only outputs (vs. G9SX-EX401-RC)
- Instantaneous-only outputs vs OFF-delayed outputs (vs. G9SX-EX041-T-RT)
- Expansion-only vs standalone-capable (vs. G9SX-BC222-RT)
Designhinweise
Estimated: The G9SX-EX401-RT cannot operate standalone - it requires an upstream G9SX-AD (Advanced) or G9SX-BC (Basic) master unit connected via the logical AND input terminals (T11/T12). Wiring the EX401-RT to a non-G9SX master or to 24 VDC without the AND signal will result in the safety outputs remaining OFF. Before commissioning, verify the AND input source by checking the master unit's AND output LED indicator and the EX401-RT's IN status LED.
When all 4 safety outputs are loaded to their rated 3 A simultaneously, the EX401-RT internal power dissipation can exceed 5 W at 24 VDC supply. Estimated: the resulting junction temperature rise on the internal solid-state output stage should be evaluated against the operating temperature upper bound (-10 C to +55 C ambient). For continuous 3 A per output at >40 C ambient, mount the unit with at least 10 mm clearance on top and bottom inside the cabinet to allow convective cooling, and avoid stacking multiple EX401-RT modules directly above heat sources such as VFDs or transformers.
Per IEC 60204-1 and the G9SX series datasheet, the G9SX-EX401-RT must be installed in an enclosure with at least IP54 rating for industrial environments, mounted on a 35 mm DIN rail conforming to EN 50022, with all screw terminals tightened to the torque specified in the datasheet (typically 0.5 N-m for the G9SX family). Use only copper conductors rated for 60/75 C minimum, and route safety-output wiring separately from power wiring to maintain EMC immunity. The PNP auxiliary output should be connected to a PLC digital input rated for the same 24 VDC logic level.
Do not mix the G9SX-EX401-RT (instantaneous) and G9SX-EX041-T-RT (OFF-delayed) outputs on the same logical AND input unless the system-level safety function has been re-evaluated. Per the Omron G9SX datasheet, mixing instantaneous and OFF-delayed outputs in the same AND chain can defeat the safety function if the time-delayed outputs are expected to drop simultaneously with the instantaneous outputs. Always perform a new risk assessment per ISO 13849-1 when cascading heterogeneous expansion modules.
Compliance-Informationen
RoHS and REACH compliant per Omron product page. AEC-Q100 not applicable (industrial safety relay, not automotive IC). Safety certification: PLe per ISO 13849-1 and SIL3 per IEC 61508 when properly cascaded with G9SX-AD or G9SX-BC master.
