• SB3G Shielded Box – EMI & RF Protection
  • SB3G Shielded Box – EMI & RF Protection
  • SB3G Shielded Box – EMI & RF Protection

SB3G Shielded Box – EMI & RF Protection

  • Superior EMI/RF Shielding – Protects sensitive equipment from interference
  • Wideband Shielding Performance – Up to 60 dB attenuation
  • Integrated Power Filtering – 120/230V AC filtered input with fuse protection
  • Multiple I/O Interfaces – RF, fiber optic, USB, and Ethernet connectivity
  • Active Cooling System – Thermostat-controlled cooling fan
  • Shielded Viewing Window – Monitor instruments without compromising shielding
  • Durable & Lightweight – 61 x 52 x 73 cm, Painted aluminum construction for long-term use

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Data Sheet SB3G

SPECIFICATIONS

SB3G Shielded Box – EMI & RF Protection for Sensitive Equipment

High-Performance Shielded Enclosure for Measurement Devices

The SB3G Shielded Box by Montena is designed to provide superior electromagnetic shielding for oscilloscopes, RF instruments, and sensitive electronics in high-interference environments. Ideal for EMC testing labs, RF transmitter stations, and high-voltage power plants, this ventilated shielded enclosure ensures optimal protection against electromagnetic disturbances while allowing easy monitoring through a shielded window.

  

SB3G Front and Rear

Key Features & Benefits

  • Wideband Shielding Effectiveness:

    • 60 dB attenuation for DC – 100 MHz

    • 30 dB attenuation for 100 MHz – 1 GHz

    • 20 dB attenuation for 1 GHz – 3 GHz

  • Integrated Power Filter: 120/230V AC filtered power input, 10A fuse

  • Multiple I/O Interfaces:

    • 4 x Type-N (50 Ω) RF connectors

    • 2 x Optical fiber openings (Ø 21 mm)

    • 1 x RJ45 Ethernet port

    • 1 x USB Type-A port

  • Active Cooling System: Built-in thermostat-controlled cooling fan

  • Front Panel Shielded Viewing Window: Easy display monitoring without interference

  • Durable Construction: Painted aluminum for long-lasting use

Technical Specifications

SpecificationSB3G
Shielding Attenuation 60 dB @ ≤100 MHz
30 dB @ 100 MHz - 1 GHz
20 dB @ 1 GHz - 3 GHz
Power Input 120/230 VAC filtered, 10 A fuse (Ø5 x 20mm)
Cooling System Thermostat-controlled cooling fan
External Dimensions (W x H x D) 61 x 52 x 73 cm
Front Door Opening 57 x 48 cm
Shielded Window 31 x 25 cm
with a 7 mm metallic grid
Weight 19 kg
Material Painted aluminum
I/O Ports 4 x Type-N (50 Ω),
2 x Optical Fiber Openings (Ø 21 mm),
1 x RJ45 Ethernet,
1 x USB Type-A

Applications

  • HV Pulse Measurements: The measurements of HV pulses required the O'Scope to be isolated from the RF of the pulse.

  • EMC Testing & RF Laboratories: Protect oscilloscopes, RF receivers, and test setups from external interference.

  • High-Voltage Power Plants: Shields measurement devices from high-intensity electromagnetic fields.

  • Aerospace & Military Testing: Ensures secure, interference-free measurements in harsh environments.

  • Automotive & EV Testing: Shields sensitive electronics during high-voltage and EMI testing.

  • Medical Equipment Protection: Safeguards critical diagnostic devices from RF disturbances.

Ordering Information

Reference Description  
SB3G

Shielded Box,

  • DC - 3 GHz,
  • 61 x 52 x 73 cm,
  • 120/230V AC power filter,
  • cooling fan,
  • multiple I/O interfaces.
Other Enclosures Available     

Why Choose Absolute EMC?

  • Authorized North American Distributor for Montena – Expert sales & technical support.

  • High-Performance Shielded Solutions – Designed for EMC, RF, and high-voltage testing applications.

  • Seamless System Integration – Compatible with leading measurement instruments.
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