It has large choice of number of contacts for high rated current use. It also offers LED indicator to alert on the current status of the relay. It helps to reduce the size of enclosures and increase machine reliability, you can mount nearly everywhere. This RPM product is IP40. Workability for hard-wired logic automated systems to complement the functions of industrial programmable logic controllers (PLCs). Status display with LED, clearly signal both in the day and night. Status display with LED, clearly signal both in the day and night. Specifications Main Range of product Harmony Electromechanical Relays Series name RPM series Product or component type Plug-in relay Contacts type and composition 1 C/O Relay type Power relay status LED With [Uc] control circuit voltage 24 V DC Minimum switching capacity 170 mW 10 mA, 17 V Release time 20 ms at nominal voltage Ambient air temperature for operation -40…131 °F (-40…55 °C) [Ithe] conventional enclosed thermal current 15 A -40…131 °F (-40…55 °C) Complementary Control type Lockable test button [Ie] rated operational current 15 A 277 V AC) UL 15 A 28 V DC) UL 15 A 250 V AC) NO IEC 15 A 28 V DC) NO IEC 7.5 A 250 V AC) NC IEC 7.5 A 28 V DC) NC IEC Degree of protection (Housing only) IP40 conforming to IEC 60529 Rated operational voltage limits 19.2...26.4 V DC [Ui] rated insulation voltage 250 V IEC 300 V CSA 300 V UL Maximum switching voltage 250 V IEC Drop-out voltage threshold >= 0.1 Uc DC Average coil consumption 1.1 W Average resistance 450 Ohm 68 °F (20 °C) +/- 10 % Maximum switching capacity 3750 VA 420 W Load current 15 A 250 V AC 15 A 28 V DC Operating time 20 ms at nominal voltage Mechanical durability 10000000 cycles Electrical durability 100000 cycles resistive Safety reliability data B10d = 100000 Operating rate <= 1200 cycles/hour under load <= 18000 cycles/hour no-load Utilisation coefficient 20 % Dielectric strength 1500 V AC between contacts micro disconnection 2000 V AC between coil and contact reinforced [Uimp] rated impulse withstand voltage 4 kV 1.2/50 µs Protection category RT I Mounting support Plug-in Operating position Any position Test levels Level A group mounting Device presentation Complete product Contacts material AgNi Shape of pin Flat (faston type) Net weight 0.057 lb(US) (0.026 kg) Environment Pollution degree 3 Standards IEC 61810-1 UL 508 CSA C22.2 No 14 Product certifications CSA EAC UL Ambient air temperature for storage -40…185 °F (-40…85 °C) Vibration resistance 3 gn +/- 1 mm 10…150 Hz)5 cycles in operation 5 gn +/- 1 mm 10…150 Hz)5 cycles not operating Shock resistance 15 gnin operation 30 gnnot operating Packing Units Unit Type of Package 1 PCE Number of Units in Package 1 1 Package 1 Height 0.551 in (1.400 cm) Package 1 Width 1.024 in (2.600 cm) Package 1 Length 1.535 in (3.900 cm) Package 1 Weight 0.847 oz (24.000 g) Unit Type of Package 2 BB1 Number of Units in Package 2 10 Package 2 Height 1.299 in (3.300 cm) Package 2 Width 3.268 in (8.300 cm) Package 2 Length 4.331 in (11.000 cm) Package 2 Weight 9.665 oz (274.000 g) Unit Type of Package 3 S02 Number of Units in Package 3 360 Package 3 Height 5.9 in (15 cm) Package 3 Width 11.8 in (30 cm) Package 3 Length 15.7 in (40 cm) Package 3 Weight 22.888 lb(US) (10.382 kg) Contractual warranty Warranty (in months) 18