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6ES7422-1FH00-0AA0 | S7-400 SM 422 Digital Output 16× AC 120/230V 2A, Isolated
6ES7422-1FH00-0AA0 SIMATIC S7-400 SM 422 digital output module — 16 channels, 120/230 V AC, 2 A per channel, relay (triac) isolated groups, front connector 20-pin. For S7-400 central/expansion rack.
Product Overview
6ES7422-1FH00-0AA0 is a SIMATIC S7-400 SM 422 digital output module providing 16 isolated AC output channels rated for 120/230 V AC at 2 A per channel (resistive load). It is designed to switch AC loads such as contactors, indicator lamps, solenoid valves (AC coils), and motor starters directly from the S7-400 PLC backplane. The 16 outputs are grouped into two isolated groups of 8 channels each (Group 0: Q0–Q7, Group 1: Q8–Q15), each with its own common (L/N) terminal. The module requires a 20-pin front connector (6ES7492-1AJ00-0AA0 or 6ES7492-1AL00-0AA0) for field wiring. Compatible with all S7-400 central racks (UR1/UR2) and expansion racks (ER1/ER2) via IM bus. Diagnostic LEDs indicate per-channel status and group power.
Technical Specifications (Electrical & Output)
Parameter
Specification
Order Number
6ES7422-1FH00-0AA0
Series
SIMATIC S7-400 — Signal Module SM 422
Number of Outputs
16 × Digital Output (DO), AC
Output Type
Triac (AC Semiconductor Switch) — Opto-isolated from backplane
Rated Load Voltage
AC 120 V / AC 230 V (Range 85–264 V AC, 47–63 Hz)
Rated Current per Channel
2 A (resistive load at 25 °C)
Lamp Load (Max.)
100 W per channel (at 230 V AC)
Inductive Load (AC-15)
2 A @ 230 V AC (e.g. contactor coil ≤ 500 VA)
Switching Frequency (Max.)
10 Hz (resistive), 0.5 Hz (inductive typical)
Leakage Current (OFF state)
≤ 2 mA
Voltage Drop (ON state)
≤ 1.5 V AC (RMS)
Isolation Groups
2 Groups × 8 ch, isolated from each other and from CPU backplane (AC 500 V test)
Diagnostics
Channel LEDs (green ON), Group Power LED, Module Error LED (red)
Technical Specifications (Mechanical & System)
Parameter
Specification
Front Connector Required
20-pin (6ES7492-1AJ00-0AA0 — screw type, or -1AL00-0AA0 — spring type) — ordered separately
Backplane Bus
S7-400 I/O bus (K-bus) — auto-addressed by rack/slot position
Slot Width
1 slot in S7-400 rack (standard single-width module)
Dimensions (W × H × D)
25 × 290 × 210 mm (single-width S7-400 SM)
Weight (Approx.)
0.75 kg
Operating Temperature
0 … +60 °C
Storage Temperature
-40 … +85 °C
Degree of Protection
IP20 (installed in cabinet)
Certifications
CE, UL 508, cULus, FM (Class I Div 2 Groups A/B/C/D T4), GL, DNV, ABS
Power Dissipation (Typ.)
≈ 8 W (all outputs ON @ rated load)
Key Features
Direct AC Load Switching: Eliminates need for intermediate interposing relays — switches 120/230 V AC contactors, solenoids, and indicators straight from the PLC.
Group Isolation (2 × 8 ch): Two electrically isolated groups allow separate AC supply phases or independent commons — simplifies panel wiring and fault isolation.
High-Current per Point (2 A): Each channel drives typical control relays/contactors directly — reduces auxiliary relay count in large panels.
Per-Channel Status LEDs: Immediate visual confirmation of which output is active — speeds troubleshooting during commissioning.
S7-400 Native Integration: Auto-detected by HW Config — no parameterization required for basic operation; diagnostic interrupt optional.
Typical Applications
Motor Starter / Contactor Control: Direct switching of AC coil contactors (up to 2 A) for pumps, conveyors, and compressors.
Solenoid Valve (AC Coil) Actuation: Pilot valves with 110/230 V AC coils in process skids and packaging lines.
Retrofit / Expansion of S7-400 Systems: Adding AC DO points to existing S7-400 central or distributed (via IM467/PROFIBUS DP slave rack) configuration.
For DC 24 V output S7-400 modules see 6ES7422-1BL00-0AA0 (32×DC 24V/0.5A) or 6ES7422-1HH00-0AA0 (16×DC 24V/2A relay). For higher AC current or mixed I/O refer to ET 200M distributed I/O with SM 322 AC modules. Front connector (20-pin screw: 6ES7492-1AJ00-0AA0) and potential bridging set are ordered separately.
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Agent,Importer,Trading Company
Year Established:
2012
Total Annual:
2000000-3000000
Employee Number:
>50
Ecer Certification：
Verified Supplier
A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E... A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E...
