The 6ES7138-7BB00-0AB0 is a SIMATIC DP watchdog module purpose-built for the ET200iSP distributed I/O system, carrying Ex ib IIC T4 Gb and Ex ib I Mb approvals for intrinsically safe operation in gas and mining hazardous areas. A watchdog module monitors the communication link and forces outputs to a safe state if the connection to the controller is lost, which is essential for safety in Ex zones.
Siemens 6ES7138-7BB00-0AB0 Watchdog Module, Ex ib IIC T4
MPN 6ES7138-7BB00-0AB0
Active
Siemens SIMATIC DP watchdog module for ET200iSP, Ex ib IIC T4 Gb, Ex ib I Mb, product class B (return restricted), active production.
$154.94 – $315.00
Ref. price · indicative, final on quote
Dispatch SLA24-48h Global Rush
Quality CheckOriginal Seal & Physical QC
IncotermsDAP / DDP Available
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & stockist· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Group code | R336 |
| Product group | 2459 |
| Product class | B: return restricted, please contact your Siemens partner/contact |
| Series | Watchdog module |
| Export control regulations | AL : N / ECCN : N |
| Compliance with the substance restrictions according to RoHS directive | Since: 15-07-10 |
Product details
Frequently asked questions
What does product class B mean for procurement?
Product class B means return restricted — you must contact your Siemens partner/contact to arrange any return or exchange.
6ES7138-7BB00-0AB0 Datasheet
MPN
6ES7138-7BB00-0AB0