Schneider RE17RMMU Harmony Modular Timing Relay 8A 1CO multifunction 24V-240V

The Schneider Electric RE17RMMU is a modular multifunction timing relay from the Harmony Timer Relays range. It provides 10 selectable time-delay functions with a universal supply voltage of 24-240 V AC or 24 V DC, and a 1 C/O relay output rated at 8 A with time delay ranges from 0.1 seconds to 100 hours.

Technical specifications:

• Commercial reference: RE17RMMU
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Harmony Timer Relays
• Product type: Modular timing relay
• Number of timing functions: 10
• Time delay types: Power on-delay (A), on/off-delay (Ac), power on-delay with pause/summation (At), single interval (B), double interval (Bw), off-delay (C), symmetrical flashing pulse-off (D), symmetrical flashing pulse-on (Di), interval (H), interval with pause/summation (Ht)
• Time delay ranges: 0.1-1 s, 1-10 s, 6-60 s, 1-10 min, 6-60 min, 1-10 h, 10-100 h
• Output contact: 1 C/O relay, rated 8 A
• Max switching voltage: 250 V AC, breaking capacity 2000 VA
• Supply voltage: 24-240 V AC (50/60 Hz), 24 V DC
• Contact material: Cadmium-free
• Connection type: Screw terminals, up to 3.3 mm² solid or 2.5 mm² flexible
• Dimensions (WxHxD): 17.5 x 90 x 72 mm
• Weight: 0.07 kg
• IP rating: IP20 terminal block / IP40 enclosure / IP50 front panel (IEC 60529)
• Operating temperature: -20 to 60°C
• Storage temperature: -30 to 60°C
• Mounting: 35 mm DIN rail per IEC 60715
• Certifications: CE, CSA, GL, cULus

Features and benefits:

• 10 selectable timing modes via front-panel rotary selector switch - no additional programming required
• Universal supply voltage range (24-240 V AC/DC) reduces stocking complexity across different installations
• Repeatability of +/- 0.5% per IEC 61812-1 ensures consistent and precise timing performance
• Cadmium-free contact material supports environmentally compliant panel builds
• LED indicator provides clear real-time feedback on relay energisation status and active timing function
• Mechanical endurance of 10,000,000 cycles for long-term, low-maintenance operation

Applications:

• Motor start and stop sequencing in industrial automation and control panels
• Lighting and signalling circuits requiring configurable on-delay or off-delay timing
• HVAC and building automation systems with timed ventilation or heating sequences
• Conveyor and process line sequencing in manufacturing environments
• Pump and compressor timed start/stop control in utilities and water treatment

Compliant with IEC 61812-1, IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3, IEC 61000-6-4, 2006/95/EC, and 2004/108/EC. Part of the Schneider Electric Harmony Timer Relays range.

Also known as: Schneider RE17RMMU, Schneider Electric RE17RMMU, Harmony multifunction timing relay, modular time delay relay.