M4252 ENERCON | Alldatasheet
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Technical content
Page 1 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in M4252 SERIES DC/AC INVERTER PRODUCT HIGHLIGHTS
- MINIATURE, HIGH DENSITY
- PURE SINE WAVE
- DC/AC INVERTER
- 18 to 70 VDC Input
- UP TO 350 VA CONT./500 VA PEAK
Page 2 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Electrical Specifications DC Input Normal range: 18 to 70 VDC AC Output Voltage range: 75 to 115 VAC Current range: 0 to 3.5 A Power range: 0 to 350 VA Optional Peak power: 500 VA for 45 sec Please consult factory for details. Frequency: 50 / 60 / 400 Hz Isolation Input to Output: 200 VDC Input to Case: 200 VDC Output to Case: 500 VDC Output Voltage Regulation Less than ±3% (no load to full load, –40C to +85C). Output Waveform Sinusoidal with max 5% (for 50,60Hz) and 7% (for 400Hz) harmonic distortion into a resistive load. EMC Designed to meet† MIL-STD-461F: CE101, CE102, CS101, CS114, CS115, CS116, RE101, RE102, RS101, RS103 Efficiency 82 ± 1% - Typical (115 VAC /400 Hz output, full load, room temperature) 79 ± 1% - Typical (115 VAC /50/60 Hz output, full load, room temperature) Turn-On Transient Soft Start – no voltage overshoot. † Compliance achieved with 5μH LISN shielded harness and static resistive load.
Applications
Military (Airborne, ground-fix, shipboard), Ruggedized, Telecom, Industrial Power Supply Special Features
- Miniature size
- High efficiency
- Wide input range
- Input / Output isolation
- Remote Inhibit (On/Off)
- Fixed switching freq. (250 kHz)
- External sync. capability
- EMI filters included
- Non-latching protection: o Short-circuit / Overload o Output over-voltage o Over temperature
Page 3 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Protections * Input
- Under Voltage Lock-Out Unit shuts down when input voltage falls below 17 VDC ± 1V
- Over Voltage Lock-Out Unit shuts down when input voltage exceeds 82 VDC ± 2V Output
- Overvoltage Protection Shuts down if output voltage exceeds 110% ± 5% of nominal voltage due to internal failure.
- Current Limiting Output hiccups as long as overload (120% ± 10% of nominal) or short-circuit condition exists. General
- Over Temperature Protection Shutdown if baseplate temperature exceeds +105 ±5 C. Automatic recovery upon cooldown to below +95 ±5 C. Environmental Conditions Designed to meet MIL-STD-810F Temperature Altitude Methods 501.4 & 502.4 Operating: –40 C to +85 C (at baseplate) Storage: –55 C to +125 C (ambient) Method 500.4 Procedures I – Storage/Air transport: up to 70,000 ft. (non-operational) Procedure II – Operation/Air Carriage: up to 70,000 ft. (operational) Humidity Method 507.4 Up to 95% RH Salt Fog Method 509.4 Vibration Shock Method 514.5 Method 516.5 General minimum integrity exposure IAW Figure 514.5C-17 1 hour per axis. 20 g, 11 ms terminal peak saw-tooth Optional: 40, 11ms saw-tooth. Please consult factory for details. Reliability 150,000 hours, calculated IAW MIL-HDBK-217F Notice 2 at +85 C baseplate, Ground Fixed conditions. * Thresholds and protections can be modified / removed – please consult factory.
Page 4 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Pin Assignment J1 - Input connector Connector type: M24308/24-39F or eq. Mates with: M24308/2-3F or eq. Pin No. Function P Pin No. Function P
1 SYNC OUT RTN – 14 SYNC OUT +
2 SYNC IN + 15 SYNC IN RTN –
3 INHIBIT + 16 SIGNAL IN RTN –
4 VIN + 17 VIN +
5 VIN + 18 VIN +
6 VIN + 19 VIN +
7 VIN + 20 VIN +
8 VIN + 21 VIN RTN –
9 VIN RTN – 22 VIN RTN –
10 VIN RTN – 23 VIN RTN –
11 VIN RTN – 24 VIN RTN –
12 VIN RTN – 25 CHASSIS
13 VIN RTN –
Connector type: M24308/23-39F or eq. Mates with: M24308/4-3F or eq. Pin No. Function P Pin No. Function P
1 START 120 + 14 START 120 RTN –
3 START 240 RTN – 16 START 240 +
5 SIGNAL OUT
RTN – 18 FREQ SELECT B +
6 FREQ SELECT A + 19 START 0 +
7 MASTER / SLAVE + 20
10 NEUTRAL OUT 0 23
12 25 PHASE OUT ~
13 PHASE OUT ~
Page 5 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Functions and Signals INHIBIT (connector J1, pin 3) The INHIBIT signal is used to turn the power supply ON or OFF. TTL “1”or OPEN – power supply turns ON (For always-on operation, leave this pin unconnected). TTL “0” or SHORT to SIGNAL IN RTN – power supply turns OFF. This signal is referenced to SIGNAL IN RTN pin (connector J1, pin 16). SYNC IN (connector J1, pin 2) The SYNC IN signal is used to synchronize the power supply's switching frequency to an external clock. The external clock frequency is allowed to be 250 kHz ± 10 kHz, with duty- cycle of 50% ± 10%. When not connected, the power supply will synchronize to its internal clock, set at 250 kHz ± 10 kHz. This signal is referenced to SYNC IN RTN pin (connector J1, pin 15). SYNC OUT (connector J1, pin 14) The SYNC OUT signal is a buffered clock signal that can be used to synchronize other power supplies to the power supply's switching frequency. This feature can be used in a master/slave setup – see typical 3-phase connection diagrams for more information. This signal is referenced to SYNC OUT RTN pin (connector J1, pin 1). MASTER / SLAVE (connector J2, pin 7) This signal is used in a three-phase setup – see typical 3-phase connection diagrams for more information. This signal is referenced to SIG OUT RTN pin (connector J2, pin 5). START 0, START 120, START 240 (connector J2, pins 19, 1 and 16 respectively) These signals are used in a three-phase setup – see typical 3-phase connection diagrams for more information. Chassis (connector J1, pin 25) This pin is connected to the converter's chassis. FREQ SELECT A, FREQ SELECT B (connector J2, pins 6 & 18, respectively) These pins are used to set the output frequency according to the following truth table: "0" means the pin is shorted to its reference, "1" means pin is left open. These pins are referenced to SIGNAL OUT RTN pin (connector J2, pin 5). Frequency FREQ SELECT A (Pin 6) FREQ SELECT B (Pin 18)
400 Hz 0 0
60 Hz 1 0
50 Hz 0 1
Page 6 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Single-Phase Typical Connection
Page 7 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Three-Phase Wye Typical Connection Three-Phase Wye Typical Connection In this example, the units are configured to 115 Vline-neutral / 200 Vline-line , 60 Hz Wye connection R S T N VIN (+) In Volt OUT PHASE (~ ) M4252 VIN RTN (–) OUT NEUTRAL (0) Optional INHIBIT SIGNAL IN RTN SYNC IN (+) SYNC IN RTN ( –) SYNC OUT (+) SYNC OUT RTN (–) CHASSIS MASTER / SLAVE FREQ SELECT A FREQ SELECT B START 0° START 120° (+) START 120° RTN (–) START 240° (+) START 240° RTN (–) SIGNAL OUT RTN VIN (+) OUT PHASE (~) M4252 VIN RTN (–) OUT NEUTRAL (0) INHIBIT SIGNAL IN RTN SYNC IN (+) SYNC IN RTN ( –) SYNC OUT (+) SYNC OUT RTN (–) CHASSIS MASTER / SLAVE FREQ SELECT A FREQ SELECT B START 0° START 120° (+) START 120° RTN (–) START 240° (+) START 240° RTN (–) SIGNAL OUT RTN VIN (+) OUT PHASE (~) M4252 VIN RTN (–) OUT NEUTRAL (0) INHIBIT SIGNAL IN RTN SYNC IN (+) SYNC IN RTN ( –) SYNC OUT (+) SYNC OUT RTN (–) CHASSIS MASTER / SLAVE FREQ SELECT A FREQ SELECT B START 0° START 120° (+) START 120° RTN (–) START 240° (+) START 240° RTN (–) SIGNAL OUT RTN put age Output Voltage
Page 8 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Three-Phase Delta Typical Connection
Page 9 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Outline Drawing Heat Dissipation Surface Notes 1. Dimensions are in inches [mm] 2. Tolerance is: .XX 0.01 in .XXX 0.005 in 3. Weight: Approx. 37 oz [1 050 g] Dissipation Area 13.78 in² [8 890 mm²]
Page 10 of 10 Feb 29, 2024 | Rev (L) | Doc: DS_M4252 Series M4252 SERIES DC/AC INVERTER Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Standard Configurations Part number Input Output Voltage Input range Voltage Frequency Current M4252-100 18 to 70 VDC 115 VAC 50/60/400Hz 3 A M4252-800 18 to 70 VDC 115 VAC 50/60/400Hz 3 A Special Features
- M4252-800: this variant is REACH Compliant
- M4252-800: The aluminum parts comprising this variant are chromate conversion coated per MIL-DTL-5541F, Type II CLASS 1A or eq.
- M4252-800: The shell of the connectors are Zinc:
- J1 - Input connector: M24308/24-39Z
- J2 - Output connector: M24308/23-39Z Note: Specifications are subject to change without prior notice by the manufacturer