Surge Protection for Amusement Park Motor Control and PLC Cabinets


Amusement Park Ride

Today's increased reliance on very sensitive electronics makes surge protection an important topic for Amusement Park motor control systems and PLC cabinets used for amusement park rides. The Insurance Institute for Business & Home Safety study found that $26 billion dollars was lost due to non-lightning power surges. In addition, there are about 25 million lightning strikes in the US each year that cause between $650M to $1B in losses according to the Insurance Information Institute, State Farm©.


Amusement Park Ride Control Panel

Selecting SPD for MCC and PLC Cabinets

NEC/NFPA 70 require that Surge Protective Devices (SPDs) shall be UL1449 Listed. This means selecting a surge protector is easier than it has ever been. There are only a few choices available for SPDs that are UL Listed for any of the most commonly used surge standards including UL1449 5th Edition, UL497B, and UL497E.

Main Service Panel | Motor Control Center | PLC Cabinet | Motor

Recommended SPD for Main Service Panel

Location	Equipment	System	Surge Protector Model#	Link
	Main Panelboard	480Vac	MDS750E-480D

Recommended SPD for Motor Control Center (MCC)

Equipment	System	Surge Protector Model#
Motor Control Center	480Vac Power Input	DS74US-480D
Power Supply	120-240Vac Power Input	DS72US-240T/NN
P/S	24Vdc Power Output	DS220S-24DC
Analog Sensors	4-20mA	DLA-24D3
Discrete I/O	RS-485	DLA-12D3
Network Switch	Ethernet Cat 6A	MJ8-C6A

Recommended SPD for PLC Cabinet

Equipment	System	Surge Protector Model#
PLC Cabinet	120-240Vac Power Input	DS72US-240T/NN
P/S	24Vdc Power Output	DS220S-24DC
Analog Sensors	4-20mA	DLA-24D3
Discrete I/O	RS-485	DLA-12D3
Network Switch	Ethernet Cat 6A	MJ8-C6A
Radio Transmitter	SCADA Wireless	P8AX09-6G-N/FF

Recommended SPD for Motors

Location	Equipment	System	Surge Protector Model#	Link
	Motor	480Vac Power Input	M50-480D-A
		0-240Vac Relay Input	DS71US-275

References

#	Title
1	NFPA 70 edition 2020, Article 670 Industrial Machinery, 670.6 Surge Protection
2	NFPA 70 edition 2014, “Data Assessment for Electrical Surge Protective Devices”
3	NFPA 79 edition 2018
4	NFPA 79 edition 2018, Annex C, Examples of Industrial Machines Covered by NFPA 79
5	ANSI C62.41, Low-Voltage AC Power Circuits
6	ANSI C136.2, Roadway and Area Lighting Equipment - Dielectric Withstand and Electrical Transient
7	UL8801, Outline of Investigation for Photovoltaic (PV) Luminaire Systems
8	UL1598, Luminaires
9	UL924, Emergency Lighting and Power Equipment
10	UL1449 5th Edition, Surge Protective Devices
11	UL497B, Surge Protectors for Data Lines and Fire-Alarm Circuits
12	UL497E, Antenna Lead-in Conductors
13	UL508, Industrial Control Equipment
14	IEC 61643-11, Low-Voltage Surge Protective Devices - Part 11: Surge Protective Devices Connected To Low-Voltage Power Systems - Requirements And Test Methods
15	IEC 61643-21, Low Voltage Surge Protective Devices - Part 21: Surge Protective Devices Connected To Telecommunications And Signalling Networks - Performance Requirements And Testing Methods
16	IEC 61000-45, Electromagnetic Compatibility (EMC) - Part 4-5: Testing And Measurement Techniques - Surge Immunity Test
17	CSA 107.1, General Use Power Supplies
18	CSA 141, Emergency Lighting Equipment
19	CSA 250, Luminaires
20	NOM-001-SCFI, Standard for Electronic Equipment
21	NOM-003-SCFI, Electrical Products - Safety Requirements
22	UL 121201, UL Standard for Safety Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations