440T-MDSSJ110AAA

Trapped Key Interlock

Name: Trapped Key Interlock
Brand: Rockwell Automation
SKU: 440T-MDSSJ110AAA

Serial #:

Lifecycle status: Active

Description

Trapped Key Interlock Switch, Slamlock, Standard Key Code Labeling, Electrical, Dual Key, Primary Key Trapped to Release Actuator, Secondary Key Eject Free

Lifecycle status: Active

Description

Trapped Key Interlock Switch, Slamlock, Standard Key Code Labeling, Electrical, Dual Key, Primary Key Trapped to Release Actuator, Secondary Key Eject Free

Unique Product Identifier	440T-MDSSJ110AAA
UPC	889508127040
Estimated Lead Time	36 days
Standard Warranty Duration	1 year See details
Country of Origin	Poland

Construction

Depth	32.5 mm
Height	236 mm
Type of accessory/spare part	Mechanical locking
Type of switch	Slamlock electrical primary trapped, sary ejector 2 NC & 1 NO
Width	58 mm

Mechanical

Actuation frequency, max	2 cycle/s
Actuation speed, max	1 m/s
Actuator material	Stainless Steel
Actuator travel for positive opening	5 mm
Break contact force, min	12 N
Case material	316L Stainless Steel, UL approved glass-filled Polyester
Conduit entry	3 x M20
Features	Electrical safety contacts combined with trapped key/enforced sequence feature, Most of unit constructed from 316L Stainless Steel, Selection of actuator types available, Single or dual key versions available, Direct drive ops, Replaceable code barr
Holding force, max	2000 N
Key code 1 position 1	Code 1 position 1 - code 0
Key code 1 position 2	Code 1 position 2 - code A
Key code 2 position 1	Code 2 position 1 - code A
Key code 2 position 2	Code 2 position 2 - code A
Key condition	Primary key trapped, sary key spring eject free to release fully flexible actuator
Mechanical life operations	200000
Mounting	DSS: 6 x M5 counterbored from top or 6 x M5 from underside with nuts
Operating radius, min	175 mm (6.88 in) (60 mm (2.36 in) with flexible actuator)
Relative humidity	95 %
Releasable load, max	100 N
Safety contact gap	>2 x 2 mm (0.07 in)
Shear force to key	15.1
Torque settings, max	Terminal screws: 1.0 Nm
Torque to key	14
Weight	DSSE: 1.67 kg (3.7 lb)

Ambient temperature	-10 °C
Ingress protection rating	IP67
Operating temperature	-40 °C
Pollution degree	3

Auxiliary contacts	1 NO
Color	Red/Stainless
Current, min	5mA @ 5V DC
Electrical life cycle	Dependant on load
Insulation voltage	Rated 500V
Rated impulse withstand voltage (Uimp)	2500 V
Safety contacts	2 NC positive break
Switching current, max	500V/500VA @ voltage
Thermal current (Ith)	10 A
Utilization category	DC (250V @ 0.5A, 24V @ 2A)

Drawings
3-Dimensional STEP model (STP)	Download (ZIP)

Drawings
3-Dimensional STEP model (STP) Download (ZIP)

Click the Download CAD button below to view all file formats available for download.

General	Publication
Product Cutsheet	--

Looking for more documentation?

Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.

Search the Literature Library

Safety

This product was certified with the above certifications as of 2026-06-22. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.

Looking for certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.

Search the Literature Library

Regulatory Information

EU Importer Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium
EU Authorized Representative Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium

Items Per Page:

Technotes

Looking for more Technotes?

Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.

Search Knowledgebase

Overview

Unique Product Identifier	440T-MDSSJ110AAA
UPC	889508127040
Estimated Lead Time	36 days
Standard Warranty Duration	1 year See details
Country of Origin	Poland

Physical Characteristics

Construction

Depth	32.5 mm
Height	236 mm
Type of accessory/spare part	Mechanical locking
Type of switch	Slamlock electrical primary trapped, sary ejector 2 NC & 1 NO
Width	58 mm

Mechanical

Actuation frequency, max	2 cycle/s
Actuation speed, max	1 m/s
Actuator material	Stainless Steel
Actuator travel for positive opening	5 mm
Break contact force, min	12 N
Case material	316L Stainless Steel, UL approved glass-filled Polyester
Conduit entry	3 x M20
Features	Electrical safety contacts combined with trapped key/enforced sequence feature, Most of unit constructed from 316L Stainless Steel, Selection of actuator types available, Single or dual key versions available, Direct drive ops, Replaceable code barr
Holding force, max	2000 N
Key code 1 position 1	Code 1 position 1 - code 0
Key code 1 position 2	Code 1 position 2 - code A
Key code 2 position 1	Code 2 position 1 - code A
Key code 2 position 2	Code 2 position 2 - code A
Key condition	Primary key trapped, sary key spring eject free to release fully flexible actuator
Mechanical life operations	200000
Mounting	DSS: 6 x M5 counterbored from top or 6 x M5 from underside with nuts
Operating radius, min	175 mm (6.88 in) (60 mm (2.36 in) with flexible actuator)
Relative humidity	95 %
Releasable load, max	100 N
Safety contact gap	>2 x 2 mm (0.07 in)
Shear force to key	15.1
Torque settings, max	Terminal screws: 1.0 Nm
Torque to key	14
Weight	DSSE: 1.67 kg (3.7 lb)

Compliance & Environment

Ambient temperature	-10 °C
Ingress protection rating	IP67
Operating temperature	-40 °C
Pollution degree	3

Electrical & Connectivity

Auxiliary contacts	1 NO
Color	Red/Stainless
Current, min	5mA @ 5V DC
Electrical life cycle	Dependant on load
Insulation voltage	Rated 500V
Rated impulse withstand voltage (Uimp)	2500 V
Safety contacts	2 NC positive break
Switching current, max	500V/500VA @ voltage
Thermal current (Ith)	10 A
Utilization category	DC (250V @ 0.5A, 24V @ 2A)

Drawings

Drawings
3-Dimensional STEP model (STP)	Download (ZIP)

Drawings
3-Dimensional STEP model (STP) Download (ZIP)

Click the Download CAD button below to view all file formats available for download.

Documents

Product Cutsheet General
--

General	Publication
Product Cutsheet	--

Looking for more documentation?

Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.

Search the Literature Library

Certifications

Safety

Looking for certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.

Search the Literature Library

Regulatory Information

EU Importer Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium
EU Authorized Representative Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium

Alternative Products

Items Per Page:

Technotes

Technotes

Looking for more Technotes?

Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.

Search Knowledgebase