MSA30-47 ARROW Relay

Review ARROW Relay

The Arrow MSA30-47 is a versatile and reliable 12 Volt DC coil operated, normally open (NO) relay. This particular model is designed to handle a maximum switch rating of 30 Amps at 125 Volts AC or 60 Amps at 12 Volts DC. The compact size of the relay, measuring 1.4 inches long, 1.2 inches wide, and 0.8 inches high, makes it an excellent choice for space-constrained applications.

The Arrow MSA30-47 features a gold plated contact set that ensures reliable and long-lasting contact performance. This contact set includes normally open (NO) contacts that can be used to switch AC or DC loads. The relay also comes equipped with a flyback diode that protects against inductive load voltage spikes.

The relay is operated using a coil that requires a minimum current of 100 mA at 12 Volts DC to energize. The coil has a resistance of 55 ohms and a power dissipation of 0.5 watts. The relay also includes a built-in current limiting resistor that protects against overloading the coil.

The Arrow MSA30-47 has a contact rating of 105 degrees Celsius and a coil rating of 130 degrees Celsius, making it suitable for use in high temperature environments. The relay is also RoHS compliant and meets the requirements of UL and CSA standards, ensuring compliance with various industry regulations.

In summary, the Arrow MSA30-47 is a high performance, compact, and reliable 30 Amp relay that is suitable for a wide range of applications. Its gold plated contact set, built-in flyback diode, and compliance with various industry standards make it a reliable and long-lasting solution for switching AC or DC loads.

Arrow MSA30-47 Relay: A Comprehensive Analysis

The Arrow MSA30-47 is a 12V DC coil relay with a NO (Normally Open) contact configuration. In this analysis, we will discuss its key features, advantages, and disadvantages to help you make an informed decision about purchasing this relay.

1. 12V DC coil voltage

2. NO contact configuration

3. Contact rating: 30A at 250VAC/ 47A at 125VAC

4. Operating temperature: -25 C to 70 C

5. Coil resistance: 240

1. High current contact rating: The Arrow MSA30-47 can handle a maximum current of 30A at 250VAC and 47A at 125VAC, making it suitable for heavy-duty applications.

2. Wide operating temperature range: It can operate efficiently in temperatures ranging from -25 C to 70 C, making it versatile for use in various environments.

3. Reasonable coil resistance: The 240 coil resistance is suitable for most applications and can be driven by a wide range of control circuits.

1. Size and weight: The Arrow MSA30-47 is larger and heavier than some other relays with similar specifications, which can make it less ideal for applications where space and weight are a concern.

2. Single-pole, double-throw contact: This relay has a NO contact configuration, which means it cannot be used for applications requiring normally closed contacts.

3. DC coil: While suitable for many applications, DC coils can wear out faster than AC coils due to their constant electrical load.

The Arrow MSA30-47 relay is a robust and reliable solution for applications requiring a high current contact rating and a wide operating temperature range. Its larger size and weight, single-pole, double-throw contact configuration, and DC coil may be disadvantages for some users.

If your application requires a high current contact rating, a wide operating temperature range, and you're not concerned about the larger size and weight or the single-pole, double-throw contact configuration, then the Arrow MSA30-47 relay is a suitable choice. However, if you need a smaller, lighter relay with AC coils or a NO-NC (Normally Open-Normally Closed) contact configuration, you may want to consider alternative options.

Details:

Configuration: coil voltage : 28 CDC.

specifications genpurrelays:

• brand: Arrow
• mpn: Msa30-47

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