Purchase now: Schneider Electric 29472 Voltage Release MX/XF
Purchase now: Atlantech Drives provides you the Schneider Electric 29472, a critical accessory for low voltage power circuit breakers. This component serves as a **Shunt Trip Release (MX)** or a **Closing Release (XF)** designed for the **Masterpact NT/NW** and **Compact NS** ranges of circuit breakers. Operating at a control voltage of **200-250 V AC/DC**, it allows for the remote opening (tripping) or closing of the breaker, essential for automated power distribution and emergency shutdown systems.
Technical Specifications and Compatibility
The 29472 coil is a «standard» voltage release commonly found in main switchboards. When energized by a momentary signal (impulse type) or maintained signal, it mechanically unlatches the breaker mechanism. It is physically identical whether configured as an opening coil (MX) or closing coil (XF); the function depends on which slot inside the breaker chassis you install it into.
- Part Number: 29472.
- Product Type: Voltage Release (Coil).
- Function: MX (Shunt Trip) or XF (Closing).
- Control Voltage: 200…250 V AC (50/60 Hz) / 200…250 V DC.
- Threshold: Trips at 0.7 to 1.1 Un.
- Response Time: 50 ms (approx).
- Consumption: Pick-up power approx. 4.5 VA.
- Compatibility: Masterpact NT, Masterpact NW, Compact NS630b-1600.
Expert Installation Advice: MX vs MN
Don’t confuse the MX (29472) with the MN (Undervoltage Release). Expert Tip: The MX (29472) trips the breaker when you apply voltage (Power to Trip). The MN trips the breaker when you remove voltage (Failsafe). If you are designing an Emergency Stop circuit using this coil, you must ensure your E-Stop button sends power to the 29472 coil to open the breaker. Also, verify that the breaker springs are charged if using it as an XF closing coil.
Frequently Asked Questions (FAQs)
Q: Can I use this continuously energized?
A: Yes, standard Schneider MX releases are designed to withstand continuous power, although they typically only need a pulse (>200ms) to operate.
Q: How do I test it?
A: You can test the coil resistance with a multimeter (unplugged), but the only true test is functional: verify the plunger moves with a snap when 230V is applied.
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