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SIEMENS 6GK7277-1AA10-0AA0 Compact Switch Module

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SIEMENS · SIMATIC

CSM 1277

6GK7277-1AA10-0AA0

4 × RJ45

Industrial Ethernet

NETWORK AT A GLANCE

Compact Network Expansion

↔

10/100 Mbit/s

⏚

24 V DC

Unmanaged switch for compatible SIMATIC S7-1200 networks.

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Product Details

SIEMENS · COMPACT INDUSTRIAL ETHERNET SWITCH

SCALANCE CSM 1277

6GK7277-1AA10-0AA0

Four-port network expansion in the SIMATIC S7-1200 device format

✉ sales@amikon.cn ◎ WhatsApp 86-18020776792

	01 / PROCESS
	02 / CONNECT
	03 / DELIVER

CONNECT / EXPAND / OPERATE

01 / PRODUCT IDENTIFICATION

A Precise Role Inside the SIMATIC Architecture

QUOTE CHECKPOINT

Send the complete catalog number, quantity, destination and installed revision for an exact-match quotation.

02 / FUNCTIONAL DESCRIPTION

What This Product Does

The Siemens CSM 1277 is an unmanaged compact switch module that connects a SIMATIC S7-1200 station and up to three additional devices to Industrial Ethernet. Its four RJ45 ports support 10/100 Mbit/s, while the enclosure follows the S7-1200 module format for space-efficient cabinet installation. Correct selection depends on the exact installed system, hardware revision, engineering configuration and surrounding components.

03 / TECHNICAL SPECIFICATIONS

Engineering Data at a Glance

Product type	CSM 1277 unmanaged compact switch
Network ports	4 × RJ45 electrical ports
Transfer rate	10/100 Mbit/s
Supply	24 V DC; permissible range 19.2–28.8 V DC
Current / power loss	Maximum 0.07 A / 1.6 W
Power connector	3-pole terminal block
Operating temperature	0…60 °C
Protection	IP20
Dimensions	45 × 100 × 75 mm
Weight	Approx. 150 g
Mounting	35 mm DIN rail
Diagnostics	LED status indication

04 / COMPATIBILITY & RELATED MODELS

Choose by Installed Function, Not Appearance

MODEL	RELATIONSHIP	SELECTION POINT
6GK7277-1AA10-0AA0	This model	Four copper ports; S7-1200 design
6AG1277-1AA10-2AA0	SIPLUS variant	Extended environmental version based on CSM 1277
SCALANCE XB family	Alternative switch family	Use when port count, managed functions or other media are required
S7-1200 PROFINET port	System connection	Connect with suitable Industrial Ethernet copper cable

✉ sales@amikon.cn ◎ WhatsApp 86-18020776792

20 YEARS OF INDUSTRIAL AUTOMATION SUPPLY

Responsive Support · International Delivery

GLOBAL TEAM SUPPORT

PRODUCT INSPECTION

WAREHOUSE COORDINATION

Urgent and planned automation requirements supported by careful part-number matching and shipment coordination.

05 / MODEL COMPARISON & REPLACEMENT

Four Checks Before Substitution

◇ Network requirement	Use for a small unmanaged star topology with four copper connections.
◇ Managed functions	Not provided; select a managed SCALANCE switch when VLAN, redundancy management or configuration is required.
◇ Expansion limit	One port normally links to the controller or upstream network, leaving up to three ports for additional nodes.
◇ Replacement check	Confirm 24 V DC supply, DIN-rail space, RJ45 media and permitted ambient conditions.

06 / TECHNICAL FAQ

Questions That Matter Before Purchase

Q1	Does the 6GK7277-1AA10-0AA0 require network configuration? No. The CSM 1277 is unmanaged and forwards Ethernet frames without switch configuration.
Q2	Can the 6GK7277-1AA10-0AA0 provide PROFINET connectivity? It transparently carries Industrial Ethernet and PROFINET traffic; it is not itself a PROFINET IO device.
Q3	How many additional devices can be connected? When one port is used for the S7-1200 or upstream connection, up to three further Ethernet nodes can be attached.
Q4	Does it accept fiber-optic cable? No. This catalog number provides four electrical RJ45 ports and no optical SC ports.
Q5	What must be checked before replacement? Verify the full catalog number, 24 V DC supply, DIN-rail mounting, RJ45 cabling and cabinet temperature.

07 / RECOMMENDED MODELS

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Tricon 4351B	3HNA024855-001	592WA-13ST	IC695CMM002	330190-045-01-05
PR9268/207-100	6ES7197-1LB00-0XA0	330103-02-04-10-02-CN	6RA8013-6DV62-0AA0	IC695CPU320
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5X00300G02	3HNA011999-001	851020-120VAC	KC4011X1-BZ1	PS69-DPS

ORDERING INFORMATION

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Sales manager: Miya zheng
Send the exact part number, quantity, condition requirement and delivery destination.

✉ sales@amikon.cn ◎ WhatsApp 86-18020776792

Return & Replacement Brief

Contact us within seven days if an issue is found after receipt. Returned items must remain in their original condition and include a clear reason. Return or replacement processing begins after inspection. Shipping costs arising from the return are the buyer's responsibility.

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