Miniature Tongue Interlock Safety Switches

Miniature tongue interlock safety switches — compact mechanical safety devices for guarding small doors and lids in confined spaces. Made of high-tech plastic or AISI 316 stainless steel, with miniature tongue (key) for precise actuation. Provide IP67/IP69K protection, compliant with EN ISO 14119, IEC 60947-5-1, PL d / SIL 2 safety level. Ideal for food, pharmaceutical, machine building and logistics industries with limited mounting space.

List of Miniature Tongue Interlock Switch Types

TypeShort Description

MTL-1

Plastic housing, 1NC/1NO, miniature tongue, IP67 — basic model for small doors.

MTL-2

Plastic housing, 2NC, reinforced mini-tongue, IP67 — for compact lids with monitoring.

MTL-SS

Stainless steel 316, 1NC/1NO, hygienic tongue, IP69K — for clean areas with washdown.

MTL-MAG

Hybrid magnetic + tongue, 1NC/1NO, IP67 — contactless enhancement for wear-free operation.

MTL-LED

With LED indication, 2NC/1NO, IP67 — for visual control in tight spaces.

MTL-LOCK

With electromagnetic lock (500–1000 N holding), 2NC, IP67 — for mini-doors with forced retention.

Specifications miniature tongue interlock safety switches

• Housing material: Plastic (polyamide) or AISI 316 stainless steel (Ra4) — lightweight/hygienic, corrosion/wash resistant.

• Contacts: 1NC/1NO, 2NC or 2NC/1NO with positive mechanical linkage; OSSD option.

• Tongue: Miniature key (length 30–50 mm), lock-compatible; holding force up to 1000 N.

• Electrical parameters: 24–250 V AC/DC, up to 4 A, IP67/IP69K.

• Size: Ultra-compact housing (e.g., 50 × 25 × 15 mm), M3/M4 screw mounting.

• Temperature: -25…+80 °C; mechanical life >1 million cycles.

Advantages miniature tongue interlock safety switches

Miniature design with tongue provides:

• integration in tight spaces (small doors, lids);

• hygiene (FDA/EHEDG, for clean areas);

• tamper protection (key cannot be removed without locking);

• versatility (compatible with electromagnetic locks). Compact construction minimizes weight and simplifies installation.

Applications miniature tongue interlock safety switches

• Food industry: Locking small lids on packaging machines.

• Pharmaceuticals: Mini-door protection in sterile cabinets.

• Machine building: Robotic cells with limited space.

• Logistics: Small doors in sorting systems.

Installation and connection miniature tongue interlock safety switches

1. Mount housing on door/lid frame, insert mini-tongue.

2. Secure with M3/M4 screws, align (±0.5 mm).

3. Connect cable (standard 1–2 m, M8/M12 option). Maintenance — visual inspection of tongue and contacts.

Buy miniature tongue interlock safety switches — fast delivery across Ukraine, certificates (EN ISO 14119), customization (LED/lock). CSC-AUTOMATION Phone: +38(044)494-33-55 E-mail: kck@kck.ua

Order now — get consultation and price in 5 minutes!

Keywords: miniature tongue interlock switches, miniatyurni yazichkovi vimikachi, plastic IP67, stainless steel 316, EN ISO 14119, food industry, pharmaceutical, IDEM STEUTE, compact safety switches, buy miniature tongue switches Ukraine