Industrial Relays – Mouser United Kingdom

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HRN Voltage Monitoring Relays

ELKO EP HRN Voltage Monitoring Relays are available with DPDT or SPDT relay contacts and contact current ratings of 5A, 8A, 13A, or 16A. These relays are offered in one- and three-phase options with silver, silver-tin, or silver-nickel contact material. The HRN series features widths of 17.6mm, 36mm, and 52mm and several lengths ranging from 64mm to 66.5mm. Engineers can choose from a wide variety of relays, including multifunction voltage monitoring relays, multifunction voltage/frequency monitoring relays, and voltage monitoring relays with selectable range, adjustable levels, and fixed levels. Typical applications for ELKO EP HRN Voltage Monitoring Relays include appliances, switchboards, microcontroller-based systems, and sensitive equipment.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Product	Type	Contact Termination	Relay Contact Form	Contact Current Rating	Switching Voltage	Contact Material	IP Rating	Series	Length	Width	Height	Packaging
Industrial Relays Multifunction; range: Umax 160-276 AC/DC, Umin 30-95% of Umax HRN-31 ELKO EP 1: £45.61 7In Stock 10Expected 06/10/2026 New At Mouser	Mfr. Part No. HRN-31 Mouser Part No 50-HRN-31 New At Mouser	ELKO EP	Industrial Relays Multifunction; range: Umax 160-276 AC/DC, Umin 30-95% of Umax Learn More about ELKO EP hrn monitoring relays	Datasheet	7In Stock 10Expected 06/10/2026	£45.61 £41.05 £39.22 £37.85 £36.49	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays		Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Mult.; range: Umax 160-276 AC/DC, Umin 30-95% of Umax, 2x output HRN-31/2 ELKO EP 1: £48.78 10In Stock New At Mouser	Mfr. Part No. HRN-31/2 Mouser Part No 50-HRN-312 New At Mouser	ELKO EP	Industrial Relays Mult.; range: Umax 160-276 AC/DC, Umin 30-95% of Umax, 2x output Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£48.78 £43.90 £41.96 £40.49 £39.02	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays		Screw	DPDT	16 A		Silver Nickel (AgNi)	IP20, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Mult.; range: Umax 160-276 AC/DC, Umin 30-95% of Umax, 2x ind. output HRN-32/2 ELKO EP 1: £48.78 10In Stock New At Mouser	Mfr. Part No. HRN-32/2 Mouser Part No 50-HRN-322 New At Mouser	ELKO EP	Industrial Relays Mult.; range: Umax 160-276 AC/DC, Umin 30-95% of Umax, 2x ind. output Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£48.78 £43.90 £41.96 £40.49 £39.02	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays		Screw	DPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Multifunction; range: Umax 12-30 DC, Umin 50-95% of Umax HRN-36 ELKO EP 1: £52.63 6In Stock New At Mouser	Mfr. Part No. HRN-36 Mouser Part No 50-HRN-36 New At Mouser	ELKO EP	Industrial Relays Multifunction; range: Umax 12-30 DC, Umin 50-95% of Umax Learn More about ELKO EP hrn monitoring relays	Datasheet	6In Stock	£52.63 £47.37 £45.27 £43.68 £42.10	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays		Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Multifunction; range: Umax 80-150V AC/DC, Umin 30-95% of Umax HRN-39 ELKO EP 1: £45.88 10In Stock New At Mouser	Mfr. Part No. HRN-39 Mouser Part No 50-HRN-39 New At Mouser	ELKO EP	Industrial Relays Multifunction; range: Umax 80-150V AC/DC, Umin 30-95% of Umax Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£45.88 £41.28 £39.45 £38.08 £36.70	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays		Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Mult.; range: Umax 80-150V AC/DC, Umin 30-95% of Umax, 2x output HRN-39/2 ELKO EP 1: £48.78 10In Stock New At Mouser	Mfr. Part No. HRN-39/2 Mouser Part No 50-HRN-392 New At Mouser	ELKO EP	Industrial Relays Mult.; range: Umax 80-150V AC/DC, Umin 30-95% of Umax, 2x output Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£48.78 £43.90 £41.96 £40.49 £39.02	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays		Screw	DPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x208V HRN-56/208V ELKO EP 1: £42.84 10In Stock New At Mouser	Mfr. Part No. HRN-56/208V Mouser Part No 50-HRN-56208V New At Mouser	ELKO EP	Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x208V Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£42.84 £38.55 £36.84 £35.55 £34.27	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP10, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x240V HRN-56/240V ELKO EP 1: £44.05 10In Stock New At Mouser	Mfr. Part No. HRN-56/240V Mouser Part No 50-HRN-56240V New At Mouser	ELKO EP	Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x240V Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£44.05 £39.65 £37.89 £36.56 £35.24	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP10, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x400V HRN-56/400V ELKO EP 1: £46.22 10In Stock New At Mouser	Mfr. Part No. HRN-56/400V Mouser Part No 50-HRN-56400V New At Mouser	ELKO EP	Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x400V Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£46.22 £41.59 £39.75 £38.36 £36.97	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP10, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x480V HRN-56/480V ELKO EP 1: £72.03 10In Stock New At Mouser	Mfr. Part No. HRN-56/480V Mouser Part No 50-HRN-56480V New At Mouser	ELKO EP	Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x480V Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£72.03 £64.82 £61.94 £59.78 £57.63	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	65 mm	52 mm	90 mm	Box
Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x575V HRN-56/575V ELKO EP 1: £74.60 10In Stock New At Mouser	Mfr. Part No. HRN-56/575V Mouser Part No 50-HRN-56575V New At Mouser	ELKO EP	Industrial Relays 3-wire; monitors: adjustable UV, phase failure/sequence; 3x575V Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£74.60 £67.13 £64.15 £61.91 £59.67	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	65 mm	52 mm	90 mm	Box
Industrial Relays Selectable range 190-200-208-220-230-240-250 & 380-400-416-440-460-480-500V. Monitors adjustable undervoltage and fixed overvoltage (110% of range), phase failure, sequence, asymmetry 2-10% (with OFF option). Adjustable time delay 0.3-30s incl. optio HRN3-70 ELKO EP 1: £116.15 9In Stock New At Mouser	Mfr. Part No. HRN3-70 Mouser Part No 50-HRN3-70 New At Mouser	ELKO EP	Industrial Relays Selectable range 190-200-208-220-230-240-250 & 380-400-416-440-460-480-500V. Monitors adjustable undervoltage and fixed overvoltage (110% of range), phase failure, sequence, asymmetry 2-10% (with OFF option). Adjustable time delay 0.3-30s incl. optio Learn More about ELKO EP hrn monitoring relays	Datasheet	9In Stock	£116.15 £104.53 £99.89 £96.40 £92.91	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	DPDT	13 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	66 mm	52 mm	90 mm	Box
Industrial Relays Selectable range 208-220-380-400-415-440-480V. Monitors adjustable undervoltage, phase failure, sequence, asymmetry 2-10% (with OFF option). Adjustable time delay 0.3-30s HRN3-80 ELKO EP 1: £70.21 10In Stock New At Mouser	Mfr. Part No. HRN3-80 Mouser Part No 50-HRN3-80 New At Mouser	ELKO EP	Industrial Relays Selectable range 208-220-380-400-415-440-480V. Monitors adjustable undervoltage, phase failure, sequence, asymmetry 2-10% (with OFF option). Adjustable time delay 0.3-30s Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£70.21 £63.18 £60.37 £58.26 £56.16	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	66 mm	52 mm	90 mm	Box
Industrial Relays Fixed range 208-480V. Monitors phase failure, sequence, asymmetry 2-10% (with OFF option).Adjustable time delay 0.3-30s HRN3-81 ELKO EP 1: £61.42 10In Stock New At Mouser	Mfr. Part No. HRN3-81 Mouser Part No 50-HRN3-81 New At Mouser	ELKO EP	Industrial Relays Fixed range 208-480V. Monitors phase failure, sequence, asymmetry 2-10% (with OFF option).Adjustable time delay 0.3-30s Learn More about ELKO EP hrn monitoring relays	Datasheet	10In Stock	£61.42 £55.27 £52.82 £50.97 £49.13	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	66 mm	52 mm	90 mm	Box
Industrial Relays Multifunction; range: Umax 12-30 DC, Umin 50-95% of Umax, 2x output HRN-36/2 ELKO EP 1: £55.61 18Expected 06/10/2026 New At Mouser	Mfr. Part No. HRN-36/2 Mouser Part No 50-HRN-362 New At Mouser	ELKO EP	Industrial Relays Multifunction; range: Umax 12-30 DC, Umin 50-95% of Umax, 2x output Learn More about ELKO EP hrn monitoring relays	Datasheet	18Expected 06/10/2026	£55.61 £50.05 £47.82 £46.15 £44.49	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays		Screw	DPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Monitoring voltage relay, 3-phase HRN-43N/UNI ELKO EP 1: £93.12 10Expected 30/09/2026 New At Mouser	Mfr. Part No. HRN-43N/UNI Mouser Part No 50-HRN-43NUNI New At Mouser	ELKO EP	Industrial Relays Monitoring voltage relay, 3-phase Learn More about ELKO EP hrn monitoring relays	Datasheet	10Expected 30/09/2026	£93.12 £83.81 £80.09 £77.30 £74.49	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	65 mm	52 mm	90 mm	Box
Industrial Relays Monitoring voltage relay, 3-phase HRN-43/UNI ELKO EP 10: £68.96 Non-Stocked Lead-Time 3 Weeks	Mfr. Part No. HRN-43/UNI Mouser Part No 50-HRN-43UNI	ELKO EP	Industrial Relays Monitoring voltage relay, 3-phase Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked Lead-Time 3 Weeks	£68.96 £65.89 £63.60 £61.30	Min.: 10 Mult.: 10	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	65 mm	52 mm	90 mm	Box
Industrial Relays Monitoring voltage relay HRN-41/UNI ELKO EP 10: £79.80 Non-Stocked	Mfr. Part No. HRN-41/UNI Mouser Part No 50-HRN-41UNI	ELKO EP	Industrial Relays Monitoring voltage relay Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked	£79.80 £76.26 £73.60 £70.93	Min.: 10 Mult.: 10	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	65 mm	52 mm	90 mm	Box
Industrial Relays Monitoring voltage relay HRN-42/UNI ELKO EP 10: £77.59 Non-Stocked	Mfr. Part No. HRN-42/UNI Mouser Part No 50-HRN-42UNI	ELKO EP	Industrial Relays Monitoring voltage relay Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked	£77.59 £74.14 £71.56 £68.98	Min.: 10 Mult.: 10	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	16 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP20, IP40	HRN	65 mm	52 mm	90 mm	Box
Industrial Relays Monitoring voltage relay HRN-54 ELKO EP 1: £56.20 Non-Stocked New At Mouser	Mfr. Part No. HRN-54 Mouser Part No 50-HRN-54 New At Mouser	ELKO EP	Industrial Relays Monitoring voltage relay Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked	£56.20 £50.59 £48.34 £46.65 £44.97	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP10, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Monitoring voltage relay HRN-54N ELKO EP 1: £56.20 Non-Stocked New At Mouser	Mfr. Part No. HRN-54N Mouser Part No 50-HRN-54N New At Mouser	ELKO EP	Industrial Relays Monitoring voltage relay Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked	£56.20 £50.59 £48.34 £46.65 £44.97	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP10, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Monitoring voltage relay HRN-55 ELKO EP 1: £41.10 Non-Stocked New At Mouser	Mfr. Part No. HRN-55 Mouser Part No 50-HRN-55 New At Mouser	ELKO EP	Industrial Relays Monitoring voltage relay Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked	£41.10 £36.98 £35.34 £34.11 £32.88	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP10, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Monitoring voltage relay HRN-57 ELKO EP 1: £56.20 Non-Stocked New At Mouser	Mfr. Part No. HRN-57 Mouser Part No 50-HRN-57 New At Mouser	ELKO EP	Industrial Relays Monitoring voltage relay Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked	£56.20 £50.59 £48.34 £46.65 £44.97	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP10, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Monitoring voltage relay HRN-57N ELKO EP 1: £56.20 Non-Stocked New At Mouser	Mfr. Part No. HRN-57N Mouser Part No 50-HRN-57N New At Mouser	ELKO EP	Industrial Relays Monitoring voltage relay Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked	£56.20 £50.59 £48.34 £46.65 £44.97	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT	8 A	250 VAC, 24 VDC	Silver Nickel (AgNi)	IP10, IP40	HRN	64 mm	17.6 mm	90 mm	Box
Industrial Relays Monitoring voltage relay HRN-67 ELKO EP 1: £35.25 Non-Stocked New At Mouser	Mfr. Part No. HRN-67 Mouser Part No 50-HRN-67 New At Mouser	ELKO EP	Industrial Relays Monitoring voltage relay Learn More about ELKO EP hrn monitoring relays	Datasheet	Non-Stocked	£35.25 £35.23 £34.89 £34.51 View £34.50 Quote	Min.: 1 Mult.: 1	DIN Rail	Monitoring Relays	Voltage Monitor	Screw	SPDT		250 VAC, 24 VDC	Silver	IP20, IP40	HRN	64 mm	17.6 mm	90 mm	Box

HRN Voltage Monitoring Relays

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