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Safety Limit Switch Selection Guide

Model

Appearance

Features

Approved Standard No.

Approved Application No.

Agency

D4N

Safety Limit Switches

D4N Safety Limit Switches

 • Lineup includes three-contact models with 2NC/1NO and 3NC contact forms and MBB models in addition to the previous 1NC/1NO and 2NC contact forms.

• M12-connector models are available, saving on labor and simplifying replacement.

• Standardized gold-clad contacts provide high contact reliability. Can be used with both standard loads and microloads.

EN60947-5-1
GS-ET-15
UL508
CSA C22.2
No.14

GB14048.5

EN81
(Lifts)


EN115
(Escalators,
Conveyors)

• TÜV SÜD

• UL

• UL (cUL)

• CQC

D4F

Small Safety Limit Switches

D4F Small Safety Limit Switches

 • World's smallest four-contact limit switch with a direct opening mechanism (four-contact).

 • High-sensitivity safety limit switches.

 • Built-in switches with two- or four-terminal contact construction are available.

 • Degree of protection: IP67.

EN60947-5-1
GS-ET-15
UL508
CSA C22.2
No.14

GB14048.5

EN81
(Lifts)


EN115
(Escalators,
Conveyors)

• TÜV SÜD

• UL

• UL (cUL)

• CQC

D4B[]-N

Safety Limit Switches

D4B-N Safety Limit Switches

 • Direct opening mechanism (NC contacts) pulls the contacts apart from each other if any abnormality, such as contact welding, should occur in the contact area.

• Equipped with a mechanism that indicates the applicable operating zone, as well as push-button switching to control left and right motion.

• Degree of protection: IP67

EN60947-5-1
UL508
CSA C22.2
No.14

GB14048.5

EN81
(Lifts)

• TÜV, Rheinland

• UL

• CSA

• CQC

D4N-[]R

Pull-reset Safety Limit Switch

D4N-R Miniature Manual Reset  Limit Switch

 • Lineup includes three-contact models with 2NC/1NO and 3NC contact forms in addition to the previous 1NC/1NO, and 2NC contact forms.

• M12-connector models are available, saving on labor and simplifying replacement.

• Standardized gold-clad contacts provide high contact reliability. Can be used with both standard loads and micro-loads.

EN60947-5-1

GS-ET-15
UL508
CSA C22.2
No.14

GB14048.5

EN81
(Lifts)


EN115
(Escalators,
Conveyors)

• TÜV SÜD

• UL

• UL (cUL)

• CQC

 

Note:

1. The safety category refers to the highest applicable category that can be selected when a safety block is created for a control system. It is not the safety category applicable to the safety component itself.

2. Production of the D4D-[]N and D4D-[]R has been discontinued at the end of March 2006. The recommended substitutes are be the D4N-[] and D4N-[]R.