440G-MT Solenoid Guard Locking Switch

Overview

• Mechanical lock
• High locking force of 1600 N (360 lb)
• Heavy-duty die-cast alloy housing
• Diagnostic version available

The 440G-MT solenoid switch is a positive mode, tongue operated guard locking interlock switch that locks a machine guard closed until power is isolated while the guard is open. The guard may only be opened when a signal is applied to the internal solenoid which releases the lock mechanism. The 440G-MT locking mechanism is designed to withstand forces up to 1600 N (360 lb) and the die-cast alloy housing is ideal for use in harsh environments.

The 440G-MT solenoid switch is designed for machines that do not stop immediately or where premature interruption of the machine could cause damage to tooling and components or cause an additional hazard.

A 24V DC enhanced version is available with diagnostic output, which may be used by a control system to indicate whether a guard door is open or shut independently of the lock mechanism status. A built in LED further visually indicates the status of the switch as “door open,” “door shut and unlocked,” and “door shut and locked.”

This enhanced version is supplied with a metal manual override key to more easily enable manual unlocking in conditions when power is not available to electrically unlock the switch.

Specs

Safety Ratings
Standards EN954-1, ISO13849-1, IEC/EN60204-1, NFPA79, EN1088, ISO14119, IEC/ EN60947-5-1, ANSI B11.19, AS4024.1
Safety Classification Cat. 1 Device per EN954-1
May be suitable for use in Cat 3 or Cat 4 systems depending on the architecture and application characteristics
Functional Safety Data (related to Safety Contacts) ⋆
PFHD: < 3 x10-7 
MTTFd: > 385 years
May be suitable for use in performance levels Ple or Pld systems (according to ISO 13849-1:2006) and for use in SIL2 or SIL3 systems (according to IEC 62061) depending on the architecture and application characteristics
Certifications CE Marked for all applicable directives, cULus, TÜV, and CCC

Outputs
Safety Contacts ‡ 3 N.C. or 2 N.C. direct opening action
Auxiliary Contacts 1 N.O. or 2 N.O.
Thermal Current Ilth 10 A
Rated Insulation Voltage (Ui) 500V
Switching Current @ Voltage, Min. 5 mA @ 5V DC

Utilization Category
A600/AC-15 (Ue) 600V 500V 240V 120V
(le) 1.2 A 1.4 A 3 A 6 A
DC-13 (Ue) 24V
(le) 2 A

Solenoid Characteristics
Locking Type Power to Release
Holding Force, Max. 1600 N (360 lb)
Power Supply 24V AC/DC or 110V AC or 230V AC
Solenoid Power 13 W typical 100% ED

Operating Characteristics
Break Contact Force, Min. 6 N (1.35 lbf)
Actuation Speed, Max. 160 mm (6.29 in.)/s
Actuation Frequency, Max. 2 cycles/s
Operating Radius, Min 60 mm (2.36 in.)
Operating Life @ 100 mA load 1,000,000 operations

Environmental
Enclosure Type Rating IP67
Operating Temperature [C (F)] -25…+60° (13…+140°)

Physical Characteristics
Housing Material Painted zinc alloy
Actuator Material Stainless Steel
Weight [g (lb)] 1400 (3.08)
Color Red

⋆ Usable for ISO 13849-1:2006 and IEC 62061. Data is based on the B10d value given and:
- Usage rate of 1op/10 mins., 24 hrs/day, 360 days/year, representing 51840 operations per year
- Mission time/Proof test interval of 38 years
‡ The safety contacts are described as normally closed (N.C.) i.e., with the guard closed, actuator in place (where relevant) and the machine able to be started.

Models

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