Allen Bradley Guardmaster ATEX Trojan 5-EX Safety Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced

RS Stock No.:: 277-2123
Mfr. Part No.:: 440K-H11145
Brand:: Allen Bradley Guardmaster

Allen Bradley Guardmaster ATEX Trojan 5-EX Safety Interlock Switch, Keyed Actuator Included, Fibreglass Reinforced

Subtotal (1 unit)*

£254.23

(exc. VAT)

£305.08

(inc. VAT)

FREE delivery for orders over £60.00

In Stock

6 unit(s) ready to ship
Plus 1 unit(s) ready to ship from another location
Plus 10 unit(s) shipping from 15 May 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	£254.23

*price indicative

RS Stock No.:: 277-2123
Mfr. Part No.:: 440K-H11145
Brand:: Allen Bradley Guardmaster

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Allen Bradley Guardmaster
	Lock Style	Keyed
	Product Type	Safety Interlock Switch
	Lock Type	Interlock
	Actuator Included	Yes
	Safety Contacts	2 NC
	Housing Material	Fibreglass Reinforced Polybutylene Terephthalate
	Series	Trojan 5-EX
	IP Rating	IP67
	Contact DC Voltage	250V dc
	Contact AC Voltage	250V ac
	Minimum Operating Temperature	-20°C
	Maximum Operating Temperature	80°C
	Hazardous Area Certification	ATEX
	Width	52mm
	Depth	52mm
	Number of Head Directions	4
	Length	95mm
	Standards/Approvals	IEC/EN 60204-1, EN 954-1, IEC/EN 60947-5-1, TUV, NFPA 79, ISO 14119, AS 4024.1, ANSI B11.19, CE, ISO 13849-1, EN 1088

	Select all
	Brand Allen Bradley Guardmaster
	Lock Style Keyed
	Product Type Safety Interlock Switch
	Lock Type Interlock
	Actuator Included Yes
	Safety Contacts 2 NC
	Housing Material Fibreglass Reinforced Polybutylene Terephthalate
	Series Trojan 5-EX
	IP Rating IP67
	Contact DC Voltage 250V dc
	Contact AC Voltage 250V ac
	Minimum Operating Temperature -20°C
	Maximum Operating Temperature 80°C
	Hazardous Area Certification ATEX
	Width 52mm
	Depth 52mm
	Number of Head Directions 4
	Length 95mm
	Standards/Approvals IEC/EN 60204-1, EN 954-1, IEC/EN 60947-5-1, TUV, NFPA 79, ISO 14119, AS 4024.1, ANSI B11.19, CE, ISO 13849-1, EN 1088

RoHS Status: Exempt

440K-H11145 Trojan EX Safety Interlock Switch

The 440K-H11145 Trojan 5 EX unit is a tongue operated safety switch which can be used in explosive environments, offering greater durability and reliability for your application. This switch has 2NC contacts, a maximum voltage rating of 240VAC/250VDC, and a 2m cable. It works by isolating the power supply to the machine when the barrier is open. The Trojan switches are ideal for use with hinged, lift-off, and sliding doors and gates. To operate the switch the key must be fixed to the door and can then be inserted into the switch.

The EX range by Allen Bradley Guardmaster ensures improved protection for equipment and personnel in dangerous areas where explosions are possible. In the US and Canada, these products can be used in areas classified as class 1, division 2 in groups A (acetylene), B (hydrogen), C (ethylene), and D (propane).

Features and Benefits:

• Explosion-proof guard-locking safety switch – perfectly suited for hazardous areas

• Positive mode action, flameproof contact block

• Suitable for use in European zone 1 and 2 environments

• Part of EX range but has the same features and operating principles as conventional Trojan switches

• IP66 enclosure protection – dust-tight and can withstand powerful jets of water

Certifications

IP66 rated

EN50014

EN50018

What is a Safety Interlock Switch?

A safety interlock switch is a device which keeps guard doors and gates securely locked to prevent access to areas where dangerous machinery may be in operation, minimalising the risk of injury to personnel and damage to machinery. They can also be used to monitor the status of the machine guard, and to ensure that machinery cannot start up or run while the guard door is open. They are often utilised in industrial applications, such as safeguarding factory production lines. They can vary in lock type, maximum current and voltage, and housing material. Safety-rated interlock switches are specifically designed to meet high machine safety standards.

Rockwell Automation is a global leader in industrial automation and digital transformation, and brings smart manufacturing to life. With a long legacy of creating Allen-Bradley® integrated control and information solutions, we help make you as productive as possible. Our portfolio of sensing, safety and motor control products can support your move towards smart machine applications. Allen-Bradley® IO-Link sensors are data-enabled and communicate with all field buses, providing diagnostic and health information about the device before a machine stops, and enabling quick production changeovers through fast parameter downloads from PLCs into the device. This reduces machine downtime and increases manufacturing OEE. For safety components, products with built-in diagnostics simplify the set-up of the smart device, and reduce maintenance, leading to a more efficient, machine data-driven approach.