西門子SM1231熱電阻模塊4RTD*16BIT 西門子SM1231熱電阻模塊4RTD*16BIT 

概述

All key product features at a glance

• In-line design
• Type-tested according to IEC EN 60947-3
• Voltage levels to 690 V AC and 440 V DC
• 160 A to 630 A for LV HRC fuse links and BS-88 fuse links, according to IEC 60269-1/EN 60269-1
• 2-/3-/4-pole versions available
• 185 mm center-to-center spacing of plug-in contacts
• Manually operated or with motorized operating mechanism
• Electronic fuse monitoring device (EFM)
• Developed for power distribution boards in plug-in design
• Horizontal or vertical mounting position
• Front panel locked in ON position
• Degree of protection IP41

Overview of all components and accessory parts

優(yōu)勢(shì)

Decisive advantages for control cabinet builders include the following:

• Compact, modular design
• Simple and efficient mounting due to incoming plug-in contact
• High packing density in the field
• Cable connection with clamps or lugs
• Can be mounted at different control cabinet depths
• Comprehensive range of accessories

The benefits for users are:

• Conversion, retrofitting, and replacement without switching off the power distribution board
• Off-circuit fuse replacement
• Maintenance-free
• High level of personal safety
• Operating handle can be locked in OFF position
• Clear and unambiguous switch position indicator

應(yīng)用

The plug-in 3NJ6 switch disconnectors with fuses are installed in low-voltage distribution boards where a minimum amount of space is available for a maximum number of cable ducts to the power distribution. They can be easily fitted in all common control cabinets (minimum depth: 400 mm).

The plug-in 3NJ62 switch disconnectors with fuses are available for rated uninterrupted currents of 160 A to 630 A.

LV HRC fuse links according to IEC 60269-1 / EN 60269-1 (sizes NH 00 to NH 3) or BS fuse links according to BS 88 provide overload and short-circuit protection up to 690 V AC

The switch disconnectors can be retrofitted at any time with auxiliary switches, an ammeter (48 mm x 48 mm), and current transformers, with no extra space required. For installation in control cabinets with a depth > 400 mm, the mounting depth of the disconnectors can be increased by 200 mm using a contact extension. Further installation accessories, such as guide rails and blanking covers, complete the product range.