The LTMR27EFM is a multi-function time delay relay from Schneider Electric's Harmony control relay series. It is an analog (potentiometer adjustable) timer designed for DIN rail mounting, providing reliable and simple time-delay control in industrial and building automation circuits.
Specifications:
Product Range Harmony Control Relays (LTMR Series - Analog Timer)
Device Type Analog Multi-Function Timer Relay (Fixed Function, typically On-Delay)
Power Supply Voltage 24-240V AC, 50/60 Hz (Universal AC supply, as indicated by "EFM"). Must verify exact range from datasheet.
Power Consumption Approx. 3 VA
Timing Function Fixed, typically On-delay (Delay on Make). The "27" in the model may indicate this specific function. Other LTMR models offer different fixed functions (e.g., Off-delay, Interval).
Timing Range Adjustable via potentiometer over a single fixed range, e.g., 0.1s to 30s, 1s to 300s, or 10s to 300s. The exact range is defined by the specific "27" model variant.
Timing Accuracy Typically ±5% to ±10% of set value (analog precision).
Number of Outputs 1 Changeover Contact (1 CO / SPDT)
Output Rating Typically 8 A @ 250V AC (Resistive)
Setting Method Rotary potentiometer with a graduated scale.
Repeat Accuracy Good, but less precise than digital timers.
Status Indication LED or neon indicator for power/operation.
Mounting DIN Rail (35mm)
Operating Temperature -20°C to +55°C (typical)
Standards & Approvals UL 508, CSA, IEC/EN 61812-1, CE, RoHS.