Wago 789-912

Specialty electronic module; 2,50 mm²

MPN: 789-912
Category: Component Modules

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What is the Wago 789-912?

Short description:

WAGO's RS-232/SMI interface module offers a standard interface to SMI-compliant electrical drives. The interface represents a purely physical level conversion between the standard RS-232 interface and the SMI signal level. The interface module operates up to 16 SMI drives. The entire SMI range of functions can be used. The special WAGO-I/O-PRO function blocks communicate between applications and SMI drives. These function blocks support both single and group addressing, as well as status monitoring. The SMI Interface Module can be used with RS-232 onboard interfaces from 750 Series Programmable Fieldbus Controllers and with the serial 750-650/003-000 or 753-650/003-000 RS-232 Interface. The module must be supplied with an external 24 VDC power source. The 24 V power supply and RS-232 connectors are electrically isolated from the SMI connectors. There is no electrical isolation between power supply and RS-232. The module is DIN-35-rail mountable.

Notes on SMI:

SMI stands for “Standard Motor Interface,” a standard interface for electrical drives. SMI was developed to connect drives with integrated electronic circuitry for applications in shutters and sunshade systems.

Specifications

Electrical data

Nominal operating voltage	24 VDC
Operating voltage range	±10 %
Current consumption at nominal supply voltage	≤ 55 mA (inside)
Number of SMI channels	1
Number of drives per channel	16
Status indicator	Green LED
Interface	RS-232 (interface input)
Specialty functions	SMI

Safety and protection

Protection type

IP20

Connection data

Cable length (max.)

350 m (SMI bus; ≤ 3 m for data and power supply cable, RS-232)

Connection data - Connection 1

Connection technology	CAGE CLAMP®
WAGO connector	WAGO 804 Series
Solid conductor	0.5 … 2.5 mm² / 20 … 12 AWG
Fine-stranded conductor	0.5 … 2.5 mm² / 20 … 12 AWG
Strip length	10 … 11 mm / 0.39 … 0.43 inches

Physical data

Width	35 mm / 1.378 inches
Height	90 mm / 3.543 inches
Depth from upper-edge of DIN-rail	55 mm / 2.165 inches

Mechanical data

Mounting type	DIN-35 rail
Mounting position	any
Housing design	DIN-rail-mount enclosure

Material data

Weight

80 g

Environmental requirements

Ambient temperature (operation)	0 … +50 °C
Ambient temperature (storage)	-25 … +85 °C

Standards and specifications

Standards/specifications

EN 50090-2-2

Commercial data

Product Group	6 (INTERFACE ELECTRONIC)
PU (SPU)	1 pcs
Packaging type	Box
Country of origin	DE
GTIN	4050821100317
Customs tariff number	85389099990

Product Classification

UNSPSC	32151705
eCl@ss 10.0	27-37-12-16
eCl@ss 9.0	27-37-12-16
ETIM 9.0	EC000225
ETIM 10.0	EC000225
ECCN	NO US CLASSIFICATION

Environmental Product Compliance

RoHS Compliance Status

Compliant,No Exemption

789-912: frequently asked questions

When can 789-912 be shipped?

789-912 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up 789-912 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for 789-912 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 789-912, subject to availability and destination.