Atlas Sound ECM-20SH – 20A AC Power Conditioner and Spike Suppressor

Product Overview

The Atlas Sound ECM-20SH is a 20-amp, 120VAC standalone power conditioner and spike suppressor designed to protect AV equipment from damaging AC line events including RFI noise, EMI interference, voltage spikes, and surges. Built for permanent commercial AV installations, the ECM-20SH operates as an independent unit or in conjunction with Atlas Power sequencer controllers such as the ECS-6RM or ECS-3 at distances up to 1000 feet. Long-tail keyword applications include 20A commercial AV power conditioner for equipment racks, Atlas Power spike suppressor for boardrooms, and RFI/EMI filter for AV system protection.

Product Description

The ECM-20SH combines multiple layers of AC line protection in a compact single-housing enclosure suitable for equipment rooms and AV racks. Its RFI filter removes radio frequency interference that can induce audible noise into audio signal chains, while its EMI filter reduces electromagnetic interference generated by nearby motors, switching power supplies, and lighting dimmers. The clamping suppression circuit activates during AC spikes and surges, blocking transient energy from reaching connected equipment with a minimum clamping voltage of 460VRMS at 3000A and maximum 6000V. The Extreme Voltage Shutdown (EVS) circuit monitors incoming AC voltage and automatically disconnects loads when line voltage falls below 102VAC or rises above 132VAC, protecting equipment from brown-out and over-voltage conditions. When interfaced with the ECS-6RM Sequencer controller, the EVS function becomes active along with voltage and current status monitoring. The unit features a Manual Bypass Switch for servicing, an Active Outlet LED for at-a-glance power status, an AC Fault indicator, and fuse protection rated at 20A slow-blow. The ECM-20SH is UL Listed, CUL, ETL, and CETL certified, and includes a 9-foot power cord for flexible placement. This is a discontinued product; stock availability may be limited.

Key Features

• 20A Current Rating — Handles full 20A loads typical in commercial AV equipment rooms and rack systems.
• RFI and EMI Filtering — Removes radio frequency and electromagnetic interference that can degrade audio and video signal quality.
• Spike and Surge Suppression — Clamping suppression rated at 460VRMS @ 3000A minimum; maximum 6000V clamping level.
• Extreme Voltage Shutdown (EVS) — Automatically disconnects below 102VAC or above 132VAC to protect connected equipment.
• Manual Bypass Switch — Allows direct AC passthrough for servicing without full system shutdown.
• AC Fault Indicator — Visible front-panel fault LED alerts technicians to AC line problems.
• Active Outlet LED — Indicates outlet power status at a glance during system checks.
• Sequencer Compatible — Interfaces with ECS-6RM or ECS-3 controllers at distances up to 1000 feet for sequenced power management.
• Safety Certifications — UL Listed, CUL, ETL, and CETL certified to MET (UL 1449).
• RoHS Compliant — Meets RoHS environmental compliance requirements.

Typical Applications

• Boardroom
• Conference room
• Commercial meeting space
• Government space
• Multi-purpose room
• Auditorium
• Broadcast studio

Technical Specifications

Frequently Asked Questions

Q: What is the difference between the ECM-20SH and a basic power strip with surge protection?

A: The ECM-20SH combines active RFI/EMI filtering, spike and surge clamping suppression, Extreme Voltage Shutdown (EVS), and sequencer-controller integration in a single professional-grade unit. Consumer-grade surge strips typically offer only MOV-based suppression without the EMI/RFI filtering, EVS circuitry, or sequencer interface that AV system integrators require.

Q: What is Extreme Voltage Shutdown (EVS) and when does it activate?

A: EVS monitors the incoming AC line voltage and automatically disconnects the outlet loads when voltage drops below 102VAC (brownout protection) or exceeds 132VAC (over-voltage protection). This prevents equipment damage from sustained voltage abnormalities. EVS is always active as a standalone unit and provides additional voltage and current status data when interfaced with the ECS-6RM sequencer controller.

Q: Can the ECM-20SH be used with an Atlas Power sequencer?

A: Yes. The ECM-20SH is designed to interface with the Atlas Power ECS-6RM or ECS-3 sequencer controllers at cable distances up to 1000 feet. When connected to the ECS-6RM, voltage and current monitoring data is also available.

Q: What does the Manual Bypass Switch do?

A: The Manual Bypass Switch routes AC power directly to the outlets, bypassing the ECM-20SH's protection circuitry. This is useful during service or troubleshooting when you need unfiltered AC without removing the unit from the installation.

Q: Is the ECM-20SH available as a multi-housing version?

A: The ECM-20SH is the Single Housing (SH) variant. Atlas Sound also offers the ECS-204, a sequencer controller that works in conjunction with the ECM-20SH for multi-zone sequenced power management.

Q: Is this product still in production?

A: The ECM-20SH is a discontinued product. Stock availability may be limited. Contact Creation Networks to confirm current inventory before ordering.

Q: What certifications does the ECM-20SH carry?

A: The ECM-20SH is UL Listed, CUL, ETL, and CETL certified to MET (UL 1449) standards for surge protective devices, and is RoHS compliant.