Electronic Surge Protector for 230V Power and 24V Signal
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Electronic Surge Protector -BS PI SCD 230/24 M
  • Overview
  • Features
  • Datasheet
  • Showcase
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Electronic Surge Protector -BS PI SCD 230/24 M

Electronic Surge Protector BS PI SCD 230/24 M(680164) is for installation at LPZ 0B-2 or higher, installed inside the control equipment, the built-in cable connected with the control equipment's wiring terminal. Applied in the 4-20mA measuring control system and bus system in hazardous areas. Surge protection for protecting one 120/230V power supply system and one 24V data interface of field devices in potentially explosive areas (zones 1 and 2).Designed according to IEC/EN 61643-21/ GB 18802.21.

  • Type

    BS PI SCD 230/24 M

  • Art.-No.

    680164

  • Features

    1. For protecting the 24V data interface and 120/230V power supply system of field instruments in hazardous areas.
    2. Small volume, easy replacement.
    3. Easy installing inside the control equipment.
    4. 304 Stainless steel housing, fireproof outdoor use.
    5. Installation with cable gland up to IP 67.
    6. M20 x 1.5 screws or 1/2-14 NPT screws Optional.

Inquiry
Download Datasheet
electronic surge protector
Surge Protective Device
24V data interface and 120/230V power supply system Ex SPD
IP67 Waterproof Protection
Wiring: RD+,BR-;BL(L),BK(N);YE/GR:PE.
304 Stainless steel housing
M20 x 1.5 screws or 1/2-14 NPT screws Optional.

BS PI SCD 230/24 M combines surge protection for a 120/230V power supply and a 24V data interface in one compact field device. Installed inside control equipment, it connects directly to the protected terminals through built-in leads. The 304 stainless steel housing, cable-gland installation up to IP67, and optional M20 x 1.5 or 1/2-14 NPT threads support integration into hazardous-area instrumentation. It is specified for 4–20mA measuring systems, bus systems, and Zone 1 or 2 applications requiring coordinated protection.

Features

1. Power and Data Protection in One Unit: Separate protection paths cover one 120/230V power supply circuit and one 24V data interface within the same housing.
2. Dedicated Mains Protection: The power section is specified for 120/230V systems with a maximum continuous AC voltage of 255V.
3. Direct Lead Connection: Input and output wiring is provided through 1.3mm² connecting leads with a length of 250mm for direct termination inside control equipment.
4. Stainless Steel Field Housing: A 304 stainless steel enclosure provides the mechanical housing for installation around field instrumentation and control equipment.
5. Two Mounting Thread Options: M20 x 1.5 and 1/2-14 NPT versions allow the protector to match different equipment and enclosure interfaces.
6. IP67 Installation Capability: When installed with the specified cable gland arrangement, the enclosure can achieve an IP67 degree of protection.
Surge Protection Device

Advantages

1. Covers Two Vulnerable Interfaces Together: Power and data protection are combined at the same field-device connection point instead of being handled by two independent protection housings.
2. Keeps Protection Close to the Equipment: Installation inside the control equipment places the SPD directly beside the terminals serving the protected instrument.
3. Simplifies Mechanical Integration: Built-in leads and two thread standards provide defined connection options without requiring a separate DIN-rail enclosure.
4. Separates Power and Signal Ratings Clearly: Independent electrical specifications for the mains and data circuits make it easier to verify compatibility during product selection.
Surge Protector

Applications

1. 4–20mA Measuring Systems: Used with field instruments operating on 4–20mA measurement and control circuits.
2. Industrial Bus Systems: Applied where field equipment combines a low-voltage data interface with a separate mains power supply.
3. Zone 1 Installations: Specified for instrumentation installed in Zone 1 potentially explosive atmospheres.
4. Zone 2 Installations: Used with compatible field equipment located in Zone 2 hazardous areas.
5. Control Equipment: Installed inside control equipment with the built-in leads connected directly to the equipment terminals.
6. Dual-Interface Field Devices: Suitable for instruments requiring both a 120/230V supply and a separate 24V data connection.
SPD

Technical Data

Product Showcase

Surge Suppressor
BS PI SCD 230/24 M(M20x1.5 screws)
Surge Protector Device
BS PI SCD 230/24 M(1/2-14 NPT screws)
BS PI SCD 230/24 M Ex SPD M20x1.5 screws
BS PI SCD 230/24 M(M20x1.5 screws) Dimension
BS PI SCD 230/24 M Ex SPD 1/2-14 NPT screws
BS PI SCD 230/24 M(1/2-14 NPT screws) Dimension
BS PI SCD 230/24 M Ex SPD Circuit
BS PI SCD 230/24 M Ex SPD Circuit

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