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© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Dedicated - Delay-on-Make www.littelfuse.com/msm Rev: 1-A-062216 MSM SERIES
Description
The MSM Series replaces bi-metal type timing with reliable solid-state circuitry. There are no moving parts to arc or wear. It is a cost effective solution for OEM designers. It is available for printed circuit board mounting or surface mounting with a removable bracket and wire leads. The MSM Series offers immediate reset on removal of power. Operation (Delay-on-Make) The time delay begins upon application of input voltage. The output is de-energized before and during the time delay. At the end of the time delay, the output energizes and remains energized until input voltage is removed. Reset: Removing input voltage resets the time delay and output. Features & Benefits FEATURES BENEFITS Analog circuitry Repeat Accuracy + / - 5%, Factory calibration + / - 15% Compact, low cost design Allows flexiblility for OEM applications Long life No moving parts to arc or wear PCB or wire harness Offers design and installation flexibility Immediate reset Occurs on removal of power T otally Encapsulated Protects against shock, vibration and humidity Wiring Diagram L1 N/L2 V = Voltage L = Load R = Red Wire B = Black Wire
Ordering Information
MODEL INPUT VOLTAGE ADJUSTMENT TIME DELAY WIRE TYPE WIRE LENGTH inches (mm) MSM10.5W6 12VDC Fixed 0.5s Standard Lead 6.0 (152.4) MSM10.7W6 12VDC Fixed 0.7s Standard Lead 6.0 (152.4) MSM11W6 12VDC Fixed 1s Standard Lead 6.0 (152.4) MSM110W6 12VDC Fixed 10s Standard Lead 6.0 (152.4) MSM130W9 12VDC Fixed 30s Standard Lead 9.0 (228.6) MSM190W6 12VDC Fixed 90s Standard Lead 6.0 (152.4) MSM20.15W9 24VAC Fixed 0.15s Standard Lead 9.0 (228.6) MSM210P3 24VAC Fixed 10s PC Mount 0.5 (12.7) MSM25W9 24VAC Fixed 5s Standard Lead 9.0 (228.6) MSM30.7W6 24VDC Fixed 0.7s Standard Lead 6.0 (152.4) MSM42W6 120VAC Fixed 2s Standard Lead 6.0 (152.4) MSM43W6 120VAC Fixed 3s Standard Lead 6.0 (152.4) MSM420W6 120VAC Fixed 20s Standard Lead 6.0 (152.4) MSM450W6 120VAC Fixed 50s Standard Lead 6.0 (152.4) If you don’t find the part you need, call us for a custom product 800-843-8848
© 2016 Littelfuse Protection Relays & Controls Time Delay Relays Dedicated - Delay-on-Make www.littelfuse.com/msm Rev: 1-A-062216 Specifications Time Delay Type Analog Circuitry Range 0.05 - 180s fixed Repeat Accuracy ±5% Tolerance (Factory Calibration) ±15% Recycle Time ≤ 75ms Time Delay vs Temp. & Voltage ±15% Input Voltage 12 or 24VDC; 24, 120, or 230VAC Tolerance ±10% AC Line Frequency 50/60 Hz Output Type Solid State Form NO, open during timing Maximum Load Current 0.5A steady state 25°C; 0.25A steady state 60°C Minimum Holding Current 40mA Voltage Drop ≅ 2.5V @ 0.5A Protection Circuitry Encapsulated Dielectric Breakdown ≥ 2000V RMS input to mounting surface Insulation Resistance ≥ 100 MΩ Polarity DC units are reverse polarity protected Mechanical Mounting A.) PC mount 14 AWG (2.087mm 2) wires (Can be inserted in AMP Miniature Spring Socket #645980-1) B.) Stranded 18 AWG wire leads (0.933 mm 2) with mounting bracket Environmental Operation/Storage Temperature -20° to 60°C / -30° to 85°C Humidity 95% relative, non-condensing Weight P: ≅ 1.1 oz (31.2 g) W: ≅ 1.2 oz (34 g) MSM SERIES Function Diagram DELAY-ON-MAKE (ON-DELAY) V = Voltage NO = Normally Open Contact NC = Normally Closed Contact TD = Time Delay R = Reset = Undefined Time