Summary
Conclusion
Merlin Gerin Multi 9 IC 2000P is a programmable twilight switch that combines light-sensitive detection with a time-based schedule to control lighting circuits. docs.rs-online.com Key Specifications Brightness Threshold: Adjustable from 2 to 2000 lux (or up to 2100 lux on newer models). Time Switch: Features a 24-hour and 7-day programmable memory with up to 42 settings Temporisation (Delay): Adjustable switching delay (typically 20 to 140 seconds
, default at 80s) to prevent false triggering from car headlights or transient clouds. Power Supply: operation. Equipped with a battery backup providing up to of memory retention without power. Protection:
Rated for IP54 (photocell) and designed for indoor DIN rail mounting. docs.rs-online.com Operating Modes Automatic:
Lighting is activated ONLY if the ambient light is below the set threshold AND the time program is in an "ON" period. Manual Overrides:
Allows for forced "ON" or "OFF" states, bypassing the automatic sensors. Holiday Mode:
Can be set for specific dates to keep lighting off during absences. docs.rs-online.com Installation & Setup Tips Photocell Placement:
Mount the photocell vertically, away from direct artificial light sources or magnetic field devices (like contactors) to avoid interference. Use tunnel terminals for cables up to
. Do not run photocell connection cables (max 100m) in the same conduit as high-power 230V conductors.
Use the "Test" button to verify the relay clicks and the circuit triggers correctly. docs.rs-online.com For the full detailed manual, you can view the Acti 9- IC2000P+ Operating Instructions provided by Schneider Electric , the successor to the Merlin Gerin brand. Schneider Electric or a specific programming sequence for the 7-day schedule? light sensitive switches IC200, IC2000, IC2000P - RS Online 5 Jul 2001 —
technical data. # light detection part: same as IC2000. # brightness threshold: adjustable from 2 to. 200 lux. # time switch part: docs.rs-online.com light sensitive switches IC200, IC2000, IC2000P - RS Online 5 Jul 2001 —
technical data. # light detection part: same as IC2000. # brightness threshold: adjustable from 2 to. 200 lux. # time switch part: docs.rs-online.com light sensitive switches IC200, IC2000, IC2000P - RS Online 5 Jul 2001 —
Feature: Integrated Fault Differentiation & Historical Event Logging
Overview: The Merlin Gerin Multi 9 Ic 2000 P is not merely a switch disconnector; it is an intelligent protection device capable of distinguishing between different types of electrical faults. Unlike standard circuit breakers that simply trip and leave the user guessing, the Ic 2000 P features an advanced internal mechanism that identifies the cause of the trip and retains this data, even during a complete power loss.
Key Functionalities:
Visual Fault Identification (The "Trip Window"): Upon tripping, the device provides immediate visual confirmation of the fault type via a dedicated indicator window on the front face:
Non-Volatile Trip Memory: The Ic 2000 P retains the status of the last fault event even if the device is switched to the "OFF" position or if the building's main power is cut.
Discrimination Assistance: By clearly identifying the trip type, the device aids in selectivity coordination. Users can quickly determine if the fault occurred locally at that specific breaker or if it was a sympathetic trip caused by a downstream issue, reducing total system downtime.
Why this matters: In critical industrial and commercial applications, "Mean Time To Repair" (MTTR) is crucial. The Integrated Fault Differentiation feature transforms the Multi 9 Ic 2000 P from a passive safety component into an active diagnostic tool, enhancing safety and significantly reducing operational downtime.
The Merlin Gerin Multi 9 IC 2000P, now under the Schneider Electric Acti9 brand, is a programmable twilight switch that combines a 2–2000 lux photocell with a weekly timer. Key features include 56 switching operations, a 20-140 second delay to prevent flicker, and a 10-year battery backup for setting retention. For more details, visit Schneider Electric Acti9 IC2000p+ (2 - 2000 lux) programmable twilight switch
The Merlin Gerin Multi 9 IC 2000 P is a high-performance twilight switch designed to manage lighting circuits based on ambient light levels. While Merlin Gerin has since been integrated into the Schneider Electric brand, these robust units remain a staple in many industrial and commercial electrical panels.
This guide serves as a comprehensive manual for the installation, programming, and troubleshooting of the Multi 9 IC 2000 P. Technical Specifications and Overview
The IC 2000 P is an analog twilight switch that uses a remote photo-electric cell (sensor) to detect outdoor light intensity. Product Range: Multi 9 Operating Voltage: 230V AC (+10% / -15%) at 50/60 Hz Breaking Capacity: 16A at 250V AC (cos phi = 1) Brightness Range: Adjustable from 2 to 2000 Lux Mounting: 35mm DIN rail Protection Rating: IP20 (Device), IP54 to IP65 (Sensor) Installation Guidelines
Proper installation is critical for the sensor to provide accurate readings without interference from artificial light sources.
Mounting the Device: Snap the IC 2000 P onto a standard DIN rail inside your electrical distribution board. Ensure the environment is dry and ventilated.
Sensor Placement: Install the photo-electric cell outdoors. It must be positioned away from the lights it controls to avoid "cycling" (turning off because it sees its own light). Wiring the Terminals: Terminals 1 & 2: Connect to the 230V AC power supply.
Terminals 3 & 5: These are the dry contact outputs (Normally Open). Connect your lighting load circuit here. Merlin Gerin Multi 9 Ic 2000 P Manual
Terminals 6 & 7: Connect the two wires leading to the external photo-electric sensor. There is no polarity to observe for the sensor wires. Programming and Calibration
The IC 2000 P features a user-friendly interface on the front face for fine-tuning your lighting automation.
1. Setting the Lux ThresholdUse the rotary dial on the front of the unit to set the light level at which the circuit should activate.
Left Side (Lower Lux): Lights will turn on only when it is quite dark (approx. 2-50 Lux).
Right Side (Higher Lux): Lights will turn on during overcast days or early dusk (up to 2000 Lux).
2. Understanding the Delay TimerTo prevent the lights from flickering due to temporary shadows, lightning, or car headlights, the IC 2000 P has a built-in time delay. On Delay: Approx. 20 to 80 seconds.
Off Delay: Approx. 20 to 80 seconds.The unit must sense a consistent light level for this duration before switching states. 3. LED Indicators Green LED: Indicates that the device is powered on.
Red LED: Indicates that the brightness detected by the sensor is below the set threshold (the output relay is active). Troubleshooting Common Issues Lights stay on during the day: Check if the sensor is covered by debris, snow, or dirt. Verify the Lux dial isn't set too high (near 2000 Lux).
Test for a short circuit in the wiring between terminals 6 and 7. Lights do not turn on at night: Check the Green LED for power supply.
Verify the Red LED turns on when you cover the sensor manually with your hand or a dark cloth (wait 80 seconds for the delay).
Check if the sensor is "seeing" a nearby streetlamp or security light. The unit clicks but lights don't work:
This suggests the internal relay is functioning, but there is a fault in the lighting circuit or a blown fuse/breaker downstream.
If you have a specific problem with your unit, I can help you more if you tell me: Is the Green power LED currently lit? Is the Red status LED on or off? What is the current Lux setting on your dial?
I can provide specific wiring diagrams or step-by-step testing based on those details.
The Merlin Gerin Multi 9 IC 2000 P is a programmable twilight switch designed to control lighting circuits based on both ambient light levels and pre-set time schedules. Since Merlin Gerin was integrated into Schneider Electric, modern documentation is often found under the Schneider Electric Acti 9 series. 📄 Core Manual & Documentation
You can access official technical manuals and guides via the following resources:
Technical Datasheet: Provides a detailed overview of light sensitive switches IC200, IC2000, and IC2000P including wiring diagrams and load ratings.
Operating Instructions: For the updated version, refer to the Acti 9 IC2000P+ Operating Instructions provided by Schneider Electric.
Legacy Guides: An older application guide for the Merlin Gerin System is available on RS-online.com. ⚙️ Key Technical Specifications
The IC 2000 P combines the functions of a photocell and a digital timer: Brightness Threshold: Adjustable from 2 to 2000 lux.
Time Delay: Includes a fixed or adjustable delay (approx. 80 seconds) to prevent nuisance switching from lightning or car headlights.
Programming: Supports 24-hour and 7-day cycles with up to 42 memory settings.
Power Reserve: Features a lithium battery backup with approximately 6 years of autonomy.
Switching Capacity: 16A at 250V AC (for resistive loads). For higher power, it is recommended to use a contactor. 🛠️ Installation Highlights Mounting: Designed for standard TH35 DIN rail mounting.
Wiring: Connect the external photocell using a 2-conductor cable (max length 100m); ensure these are not run alongside 230V power conductors to avoid interference.
Modes: Offers manual override for permanent "ON" or "OFF" states and a "Holiday" mode (1–45 days) to suspend programming. 💡 Troubleshooting and Support If the unit is not responding as expected, verify:
The photocell placement is away from artificial light sources. Evaluation of the Merlin Gerin Multi 9 IC
The wiring terminals (typically 2 and 4 for output) are securely connected.
The Schneider Electric Support Center for technical FAQs regarding the IC2000P+.
Are you looking to set a specific program (e.g., street lighting)?
Are you having trouble with the wiring or a specific error code?
Elias Thorne was a man who appreciated order. In his line of work—restoring power to the aging, forgotten infrastructure of the city’s textile district—chaos was the enemy, and the schematic was his bible.
It was a humid Tuesday evening, the air thick with the smell of ozone and wet asphalt, when he received the call. The old Hargrove Mill, a cavernous brick skeleton scheduled for renovation, had gone dark. Not just a blown bulb; a total blackout that had the security guards spooked.
Elias arrived with his tool bag slung over one shoulder and a cup of lukewarm coffee in his hand. He made his way to the basement, the beam of his flashlight cutting through dancing dust motes. The main distribution board was hidden behind a rusted metal door that groaned in protest as he pulled it open.
"Alright, let's see what we have," he muttered, his voice echoing in the concrete chamber.
Inside the panel, it was a mess. Wires were coiled like vipers, and most of the breakers were nondescript, their labels faded into illegibility. But in the center of the row, pristine and imposing, sat the unit he was looking for: the Merlin Gerin Multi 9 Ic 2000 P.
To the uninitiated, it was just a plastic box with switches. To Elias, it was a masterpiece of French engineering. The Multi 9 series was the gold standard—compact, modular, and relentless in its duty. The "Ic 2000 P" designation meant it was a current limiter, a high-capacity interrupter designed to swallow a massive surge of electricity and choke it out before it could start a fire.
Elias set his coffee down on a clear patch of conduit. The handle on the unit was flipped down, locked in the 'Trip' position.
"Something spooked you, didn't it?" he whispered to the machine.
He didn't just flip the switch back. That was amateur hour. If a breaker this size had tripped, it was usually because something had tried to kill the circuit. He pulled the crumpled Manual from the back pocket of his coveralls. The pages were soft with age, covered in grease smudges and marginalia.
He thumbed through to the troubleshooting section for the Ic 2000 P. He needed to know the breaking capacity. Was it a short circuit downstream, or an overload? The manual detailed the trip curves, the exact millisecond delay before the mechanism engaged the silver-composite contacts to sever the current.
He traced the diagram with a calloused finger. High breaking capacity. Current limiting.
If this unit had failed to limit the current, the entire board would be a pile of slag. The fact that it was just tripped meant the Merlin Gerin had done its job perfectly. It had sacrificed its circuit to save the mill.
Elias pulled out his multimeter. He checked the load side. A dead short.
"Gotcha," he said.
He followed the conduit out of the basement and up to the main floor, finding a junction box where a rusted conduit had flooded with rainwater, causing a massive arc. He dried the connections, taped the compromised wires, and returned to the basement.
He stood before the Multi 9 again. He toggled the handle to the 'Off' position to reset the mechanism, feeling the satisfying mechanical click—a sound of precision engineering.
"Let's try this again," he said.
He pushed the handle up to 'On'.
Clack.
No sparks. No hum. Just the sound of electricity flowing safely through the veins of the building. Somewhere above him, the overhead lights flickered to life, illuminating the vast, empty looms of the mill.
Elias took a sip of his coffee. He patted the face of the Merlin Gerin unit. It was warm to the touch, humming with the quiet vibration of contained power.
"Good work," he said to the breaker.
He closed the manual, shoved it back in his pocket, and walked out of the basement, leaving the Multi 9 to stand guard over the darkness once more. Scope and organization
The Merlin Gerin Multi 9 IC 2000 P is a DIN-rail mounted, programmable twilight switch that manages lighting based on ambient light levels (2-2000 lux) and 7-day schedules. It operates on 230V AC, offers adjustable time delays to prevent flickering, and features a 16A dry contact output. For the full operating instructions, visit Schneider Electric
Manual Merlin Gerin IC2000P (page 1 of 2) (English) - Libble.eu
In the heart of a bustling industrial complex, where the hum of machinery was the symphony of progress, there stood a modest electrical cabinet. Within its steel confines, amidst a maze of wires and components, resided the Merlin Gerin Multi 9 Ic 2000 P. It was not merely a circuit breaker; it was a silent guardian, a sentinel of safety.
The Ic 2000 P had been installed years ago, its sleek, grey casing a testament to the engineering prowess of Merlin Gerin. Its purpose was clear: to protect the delicate electronic systems of the facility from the ravages of overloads and short circuits. It was a role it embraced with unwavering dedication.
Day and night, the Ic 2000 P monitored the flow of electricity. It was a constant vigilance, a tireless watch against the unseen forces that could disrupt the factory's rhythm. The manual, a weathered document tucked away in a nearby folder, was its guiding light, containing the secrets of its operation and the wisdom of its creators.
One sweltering afternoon, a sudden surge of power rippled through the electrical grid. It was a formidable force, a digital tempest that threatened to overwhelm the factory's systems. The Ic 2000 P felt the surge, its internal sensors reacting with lightning speed. Within milliseconds, it tripped, its mechanical heart snapping shut, severing the path of the destructive current.
The factory fell silent. The hum of machinery was replaced by an eerie stillness. But in that silence, there was safety. The Ic 2000 P had fulfilled its duty, preventing a potentially catastrophic event.
The facility's electricians, guided by the manual, soon arrived at the cabinet. They examined the tripped breaker, its indicator window a clear sign of its heroic intervention. With careful hands, they reset the Ic 2000 P, restoring power to the factory.
The machines roared back to life, their symphony resumed. The Ic 2000 P returned to its silent watch, its grey casing a symbol of reliability and protection. It was a modest component, but its story was one of unwavering commitment to safety, a story told in the quiet corners of the industrial world.
The Merlin Gerin Multi 9 IC 2000 P Go to product viewer dialog for this item.
(now often branded under Schneider Electric's Acti 9 range as the IC2000P+) is a programmable twilight switch designed to control lighting or other electrical loads based on both light intensity and a weekly time schedule. Key Manuals and Documentation
Operating Instructions (Official): The most comprehensive guide is the Acti 9 IC2000P+ Operating Instructions, which covers wiring, initial setup, and advanced programming.
Technical Overview: For a summary of technical data, such as power consumption (0.8W standby) and switching capacity (10A–16A), refer to the IC2000P Technical Datasheet.
Installation Guide: A legacy Merlin Gerin IC2000 Installation Guide provides specific diagrams for mounting the external photocell and basic wiring. Core Functions and Features
Dual Control: It combines light-sensitive switching (adjustable from 2 to 2000 lux) with a 7-day (weekly) programmable timer.
Programming Capacity: Supports up to 56 switching operations and includes a lithium battery for a 5–10 year power reserve.
Override Options: Features manual and remote override capabilities, allowing you to force the load on or off regardless of the current program or light level.
Automatic Adjustments: Includes automatic winter/summer time changeover and a holiday schedule mode. Basic Programming Steps
Upon first power-up or after a reset, you must complete the following initial setup: Language: Select your preferred language (e.g., English). Date/Time: Set the current year, month, day, and time.
Light Threshold: Access the LIGHT menu to adjust the brightness threshold (lux) and set switching delays to prevent flickering from transient light (e.g., car headlights).
Schedule: Use the PROGRAM menu to define "On/Off" periods for specific days of the week. Wiring and Installation Tips
Photocell Placement: Mount the external sensor vertically using the provided IP54 housing. Do not place it near magnetic devices (transformers, contactors) or directly under the light it is controlling.
Cabling: Use separate conduits for photocell cables and 230V AC power conductors to avoid interference. Maximum photocell cable length is 100 meters.
High Power Loads: While it can directly control loads up to 1000W, use a contactor for higher power requirements or inductive loads to protect the internal relay.
To understand the manual, you must first decode the model number:
Since Merlin Gerin was absorbed by Schneider Electric over a decade ago, finding legacy manuals requires a strategic approach. Here are the five most effective methods:
Use this exact phrase in Google:
"IC2000 P" filetype:pdf site:schneider-electric.com
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