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440E-L13137 | Guardmaster Tongue Interlock Switch, 2 N/C Safety, 1 N/O Aux, M16

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Certification

"ACH has proven to be a reliable partner. Their products are genuine and high-quality, with competitive prices and on-time delivery. We trust them as our long-term supplier in automation."

—— Mohammed Al-Farsi, Procurement

"For us, cost efficiency and authenticity are key. ACH helps reduce expenses while ensuring reliable quality and timely supply, making them a strong partner in our operations."

—— Procurement Manager

"For us, cost efficiency and authenticity are key. ACH helps reduce expenses while ensuring reliable quality and timely supply, making them a strong partner in our operations."

—— Supply Chain Director

"ACH offers quick response, flexible solutions, and fair pricing. The products are always genuine and reliable, and their friendly support makes cooperation smooth."

—— Operations Manager

"ACH provides genuine products with stable quality and fair pricing. Their fast response and reliable delivery give us confidence to continue working with them."

—— Engineering Manager

"We value ACH for their consistent quality and competitive pricing. Deliveries are always reliable, and their professional support makes procurement much easier for our team."

—— Procurement Head

440E-L13137 | Guardmaster Tongue Interlock Switch, 2 N/C Safety, 1 N/O Aux, M16

Large Image : 440E-L13137 | Guardmaster Tongue Interlock Switch, 2 N/C Safety, 1 N/O Aux, M16 Get Best Price

Product Details:

Place of Origin:	DO
Certification:	ATEX
Model Number:	440E-L13137
Document:	ACH-AB-P+F-E+H-IFM-ASCO-YOK...WA.pdf

Payment & Shipping Terms:

Minimum Order Quantity:	1
Price:	Negotiable
Packaging Details:	carton
Delivery Time:	Negotiable
Payment Terms:	T/T,XT,ALIPAY
Supply Ability:	100pcs per month

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Guardmaster Tongue Interlock Switch

440E-L13137 safety switch

Allen Bradley M16 interlock

440E-L13137 | Guardmaster Tongue Interlock Switch, 2 N/C Safety, 1 N/O Aux, M16

440E-L13137 Guardmaster tongue (key) operated safety interlock switch. 2 N/C safety contacts + 1 N/O aux, 270° head rotation, M16 cable entry, IP67, for machine guard monitoring.

Product Overview

The 440E-L13137 is a tongue-actuated (key-interlocked) safety switch from the Guardmaster 440E series, designed to monitor the position of machine guards and interlock access doors. It features 2 Normally Closed (N/C) safety contacts and 1 Normally Open (N/O) auxiliary contact, with a rotatable head (4×90° positions) for flexible mounting. The switch accepts a coded or standard tongue (ordered separately — typically 440E-Txxx) and is rated IP67 for washdown and harsh environments.

Technical Specifications (Electrical & Contacts)

Parameter	Specification
Catalog Number	440E-L13137
Series	Guardmaster 440E (Tongue Operated)
Contact Configuration	2 N/C (Safety) + 1 N/O (Auxiliary / Monitoring)
Contact Rating	10 A @ 240 V AC (AC-15), 6 A @ 24 V DC (DC-13)
Rated Insulation Voltage (Ui)	300 V AC
Rated Impulse Withstand (Uimp)	2.5 kV
Mechanical Life	1,000,000 operations (min.)
Safety Category (EN ISO 13849-1)	Can achieve Cat. 4 / PL e when used with a correctly wired safety relay or safety PLC

Technical Specifications (Mechanical & Environmental)

Parameter	Specification
Actuation Method	Tongue (Key) Insertion — engages when guard closes
Head Rotation	4 Positions (0°, 90°, 180°, 270°) — set via captive screws
Cable Entry	M16 x 1.5 (Threaded Gland Hole — Gland not included)
Housing Material	Die-Cast Zinc / Reinforced Thermoplastic (Model Dependent — typically metal head, plastic body)
Tongue (Key) Required	Yes — ordered separately (e.g., 440E-Txxxxx series)
Protection Rating	IP67 (Dust-tight, temporary immersion)
Operating Temperature	-25 … +70 °C
Standards	EN ISO 13849-1, EN 1088, IEC 60947-5-1, UL 508, CSA C22.2 No.14
Weight (Approx.)	~0.25 kg

Key Features

Dual N/C Safety Contacts: Provides redundant positive-opening contacts for safety monitoring — both must open when the guard is opened to trigger a safe stop.
Rotatable Head: 270° total adjustability in 90° increments allows the switch to be mounted in any orientation relative to the guard door swing.
Auxiliary N/O Contact: Gives a separate signal for guard-closed indication or PLC status feedback without consuming a safety input.
Tamper-Resistant Tongue Design: The tongue (key) is captured only when fully inserted — partial insertion will not close the safety contacts.

Applications

Machine Guard Door Interlocking: Preventing access to hazardous areas (presses, conveyors, robotic cells) until the machine is safely stopped.
Process Isolation: Ensuring covers on mixers, grinders, or slitters remain closed during operation.
Retrofit Safety Upgrades: Replacing older non-safety interlocks in compliance-driven modernization projects.

Note: The tongue/key (440E-Txxxx) is ordered separately and selected based on door offset and actuator style (straight, angled, flexible). For a version with M12 quick-disconnect or stainless steel housing, see other 440E variants. Always wire N/C safety contacts in series with a safety relay or safety input — never bypass with jumpers.

440E-L13137 | Guardmaster Tongue Interlock Switch, 2 N/C Safety, 1 N/O Aux, M16 0

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

Frequently Ask & Questions

Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

Are the Products Genuine OEM Units?

Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.

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