KMC Controls REE-4001 Relay

The KMC Controls REE-4001 is a high-performance 3-stage electric reheat relay module engineered specifically for integration with VAV terminal units in commercial HVACR systems. When interfaced with CTE series analog thermostats or a 0 to 10 VDC signal from a DDC controller, this module provides precise, incremental control of heating loads. The REE-4001 relay features three independent triac output circuits, each capable of handling contactors up to 10 VA at 24 VAC. These circuits are factory-calibrated to actuate at equally spaced intervals across the thermostat's proportional band, ensuring a smooth transition between heating stages and preventing rapid cycling. Designed for veteran technicians, the KMC REE-4001 replaces traditional mechanical timers with a more reliable electronic sequence. It is housed in a flame-retardant plastic enclosure and supports easy field wiring via plated screw terminals for 14-22 AWG conductors. This 24V 3-stage relay is the industry standard for optimizing discharge air temperature control in varied thermal zones.

• Precise Multi-Stage Reheat: Orchestrates up to three distinct stages of heating to maintain tight setpoint tolerances in VAV applications.
• Universal Input Compatibility: Operates seamlessly with 0-6 VDC or 0-10 VDC signals from analog and DDC controllers.
• Durable Triac Outputs: Each of the three stages supports 10 VA at 24 VAC, offering robust performance for electric or hot water reheat contactors.
• Simplified Field Installation: The beige ABS, flame-rated enclosure includes plated screw terminals for secure 14-22 AWG wire termination.
• Linear Actuation: Calibrated internal logic ensures stages activate at methodically spaced intervals to reduce energy consumption and equipment wear.

What thermostats are compatible with the REE-4001?
This relay is primarily designed for use with KMC CTE-1004, CTE-1103, and CTE-5202 series thermostats, as well as CEE-1103 models.

Can this relay control 120V loads directly?
No, the triac outputs are rated for 24 VAC. You must use this relay to pilot 24V coils on higher-voltage contactors or power relays.

What is the typical sequence of operation for the stages?
As the input signal rises (typically from a 0-10V source), the three stages engage sequentially at equidistant voltage points to provide proportional heating capacity.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.