The TM172PBG28RI is a digital, multi-function timer relay from Schneider Electric's Harmony control relay series. Designed for DIN rail mounting, it provides precise and programmable time-delay control for a wide variety of industrial automation applications.
Specifications:
Parameter Specification
Product Range Harmony Control Relays (TM172 Series - Digital Timer)
Device Type Multi-Function Digital Timer Relay
Power Supply Voltage 24V DC (The "PBG" prefix indicates this DC supply).
Power Consumption Approx. 2 W (DC)
Timing Functions User-selectable via DIP switches (e.g., On-delay, Off-delay, Interval, Pulse, etc.).
Timing Ranges Multiple ranges selectable (e.g., 0.1s → 10h, 1s → 100h).
Timing Accuracy Typically ±0.5% of set value ± 20 ms.
Number of Outputs 2 Changeover Contacts (2 CO / DPDT)
• Output 1: Timed Contact
• Output 2: Instantaneous Contact
Output Contact Rating 8 A @ 250V AC (Resistive)
5 A @ 250V AC (Inductive)
8 A @ 30V DC (Resistive)
Output Configuration DPDT (2 Form C) for each output.
Setting Method Front-panel DIP switches (function selection) and rotary potentiometer(s) or thumbwheel switches (time setting).
Status Indication LED indicators for power and output status.
Mounting DIN Rail (35mm)
Operating Temperature -20°C to +55°C
Standards & Approvals UL 508, CSA, IEC/EN 61812-1, CE, RoHS