General
ALS-4OOQ is armed with magnet switches to indicate the open and closed positions remotely. These kinds of limit switch box were designed through advance and state-of-the-art engineering technology which have the product to be solid,beautiful and with high-level quality.The products are designed suitable for valve and actuators in hazardous area application, having compact but robust construction conforms to EN50014 and 50018, also suitable in Zone1 and 2, and ingress protection IP66. Standard aluminum housing provides reliable explosion proof performance.

Feature
1. Explosion proof is ExdIICT6.
2. Aluminum die-casting housing and powder coated.
3. Secure waterproof, multi-angles visual valve positions involving top and side view.
4. Spring loaded splined cam. No need to adjust again after initial setting and easy setting without tool.
5. Standard 10 points and enough strips for connection.(12 points for optional)
6. 2xG3/4 (Standard) and 2x3/4NPT (Optional) cable entries.
7. No worry to loose bolts while cover opens with captive cover bolts.
8. NAMUR and ISO5211 standard steel plate or stainless steel (optional) adjustable bracket.

Structure and Material

No. Part Name Qty. Material Picture 1 Box Cover 1 Aluminum Die Casting 2 Box Body 1 Aluminum Die Casting 3 Shaft 1 Stainless Steel 4 Indicator Cover 1 Polycarbonate 5 Indicator 1 ABS/Polycarbonate 6 Limit Switch 2 Magnet 7 Terminal Strip 10 Polycarbonate, Tin Plated Brass, Stainless Steel 8 Cam 2 Polycarbonate 9 Spring 1 Stainless Steel 10 Cover Bolts 4 Stainless Steel 11 Shaft O-ring 2 NBR 12 Housing O-ring 1 NBR 13 Indicator O-ring 1 NBR 14 Bushing 2 Bronze 15 Earth Lug 1 Stainless Steel 16 E-ring 2 Stainless Steel

Specification

Dimension

Wiring

Mounting Bracket

Model Picture Material Application MB-3.3 Carbon steel with polyester powder coated  30X80(130) H:20~30 Stainless steel SS304